According to the so-called 'proportionality principle', causes should be proportional to their effects: they should be both enough and not too much for the occurrence of their effects. This principle is the subject of an ongoing debate. On the one hand, many maintain that it is required to address the problem of causal exclusion and take it to capture a crucial aspect of causation. On the other hand, many object that it renders accounts of causation implausibly restrictive and often (...) reject the principle wholesale. I argue that there is exaggeration on both sides. While one half of the principle is overly demanding, the other half is unobjectionable. And while the unobjectionable half does not block exclusion arguments on its own, it provides a nuanced picture of higher-level causation, fits with recent developments in philosophy of causation, and motivates adjustments to standard difference-making accounts of causation. I conclude that at least half of the proportionality principle is worth taking seriously. (shrink)

This paper responds to recent criticisms of the idea that true causal claims, satisfying a minimal “interventionist” criterion for causation, can differ in the extent to which they satisfy other conditions—called stability and proportionality—that are relevant to their use in explanatory theorizing. It reformulates the notion of proportionality so as to avoid problems with previous formulations. It also introduces the notion of conditional independence or irrelevance, which I claim is central to understanding the respects and the extent to (...) which upper level explanations can be “autonomous”. (shrink)

A cause is proportional to its effect when, roughly speaking, it is at the right level of detail. There is a lively debate about whether proportionality is a necessary condition for causation. One of the main arguments against a proportionality constraint on causation is that many ordinary and seemingly perfectly acceptable causal claims cite causes that are not proportional to their effects. In this paper, I suggest that proponents of a proportionality constraint can respond to this objection (...) by developing an idea that is present in Yablo’s early work on proportionality, but which has strangely been ignored by both Yablo and others in the subsequent debate. My suggestion is that proportionality—and, indeed, causation itself—is relative to a domain of events. At the metaphysical level, this means that the causal relation has an extra relatum—namely, a domain of events. At the level of language, it introduces a new way in which causal claims are context-sensitive: what is expressed by a causal claim depends on the contextually relevant domain of events. As I argue, this suggestion allows us to accommodate the truth of ordinary causal claims while extending the explanatory benefits of a proportionality constraint. (shrink)

Supporters of the autonomy of higher-level causation (or explanation) often appeal to proportionality, arguing that higher-level causes are more proportional than their lower-level realizers. Recently, measures based on information theory and causal modeling have been proposed that allow one to shed new light on proportionality and the related notion of specificity. In this paper we apply ideas from this literature to the issue of higher vs. lower-level causation (and explanation). Surprisingly, proportionality turns out to be irrelevant for (...) the question of whether higher-level causes (or explanations) can be autonomous; specificity is a much more informative notion for this purpose. (shrink)

This commentary explores the principle of proportionality as a possible solution to unresolved problems pertaining to the tensions among principles in various ethical frameworks for artificial intelligence (AI). Conceptual and procedural divergences in the sets of principles reveal uncertainty as to which ethical principles should be prioritized and how conflicts between them should be resolved. Moreover, there are externalities of employing the currently dominant AI methods, in particular for the environment. The principle of proportionality and a framework of (...) tests of necessity, desirability, and suitability can address some of the underlying issues and to ensure that other societal priorities are well taken into account. It is argued that at least in certain scenarios the perceived tensions can be false dichotomies. Proportionality presents a set of conditions to satisfy to justify the usage of certain AI methods, which can be further expanded to justifying using AI systems as such for a particular purpose. (shrink)

This article seeks to show that Israel’s war in Gaza in 2023 and 2024 has been an unjust war because it has violated both the requirement of proportionality and the requirement of necessity. The article explains the nature of proportionality, arguing that the main form of proportionality in war is simply the limit to the amount of harm inflicted on innocent people that can be justified either as the lesser evil or, more plausibly, on the basis of (...) the special relations between combatants and their fellow citizens. The argument of the article is that, even on the basis of assumptions about moral justification and the numbers of innocent people who have been killed or saved by the war that are highly favorable to Israel, the war has nevertheless been highly disproportionate and morally unnecessary. (shrink)

Building upon the notion of proportionality, this article proposes a line of argument in favor of nonreductive explanations in the social sciences. I argue that many higher-level explanations in the social sciences, i.e., explanations over and above the individual-level, are legitimate explanations insofar as their explanantia are proportional to their given explananda of interest. These higher-level explanations are often favored over their individual-level reductive counterparts because they are strictly more informative than their reductive counterparts.

The interventionist account of causation offers a criterion to distinguish causes from non-causes. It also aims at defining various desirable properties of causal relationships, such as specificity, proportionality and stability. Here we apply an information-theoretic approach to these properties. We show that the interventionist criterion of causation is formally equivalent to non-zero specificity, and that there are natural, information-theoretic ways to explicate the distinction between potential and actual causal influence. We explicate the idea that the description of causes should (...) be proportional to that of their effects. Then we draw a distinction between two ideas in the existing literature, the range of invariance of a causal relationship and its stability. The range of invariance is related to specificity and range of causal values. Stability concerns the effect of additional variables on the relationship between some focal pair of cause and effect variables. We show how to distinguish and measure the direct influence of background variables on the effect variable, and their influence on the relationship between the focal cause and the effect variable. Finally, we discuss the limitations of the information-theoretic approach, and offer prospects for complementary approaches. (shrink)

With contributions from leading scholars in constitutional law, this volume examines how carefully designed and limited doctrines of proportionality can improve judicial decision-making, how it is applied in different jurisdictions, its role on constitutionalism outside the courts, and whether the principle of proportionality actually advances or detracts from democracy. Contributions from some of the seminal thinkers on the development of scholarship on proportionality extend their prior work and engage in an important dialogue on the topic. Some offer (...) substantial critiques, others defend the doctrine and offer important clarifications and extensions of their prior work. Throughout, the authors engage not only with case law from around the world but also with existing scholarly treatments of the subject. Mathematical treatments are avoided, making the book accessible to readers from both 'soft' and hard' social science backgrounds. (shrink)

In the course of commenting on the third chapter of Frances Kamm’s Ethics for Enemies, this article proposes an analysis of the notion of a just cause for war, according to which there is a just cause only when those whom it is necessary to attack as a means of achieving some aim are potentially morally liable to be attacked. The remainder of the article then discusses issues of proportionality, particularly in relation to several distinct forms of moral justification (...) for harming or killing people. Among the central questions addressed is what the conditions are in which good effects of a war that are independent of the achievement of the just cause may count in determining whether the war would be proportionate. (shrink)

To speak of human rights in the twenty-first century is to speak of proportionality. Proportionality has been received into the constitutional doctrine of courts in continental Europe, the United Kingdom, Canada, New Zealand, Israel, South Africa, and the United States, as well as the jurisprudence of treaty-based legal systems such as the European Convention on Human Rights. Proportionality provides a common analytical framework for resolving the great moral and political questions confronting political communities. But behind the singular (...) appeal to proportionality lurks a range of different understandings. This volume brings together many of the world's leading constitutional theorists - proponents and critics of proportionality - to debate the merits of proportionality, the nature of rights, the practice of judicial review, and moral and legal reasoning. Their essays provide important new perspectives on this leading doctrine in human rights law. (shrink)

Philosophers of criminal punishment widely agree that criminal punishment should be “proportional” to the “seriousness” of the offense. But this apparent consensus is only superficial, masking significant dissensus below the surface. Proposed proportionality principles differ on several distinct dimensions, including: regarding which offense or offender properties determine offense “seriousness” and thus constitute a proportionality relatum; regarding whether punishment is objectionably disproportionate only when excessively severe, or also when excessively lenient; and regarding whether the principle can deliver absolute judgments, (...) or only comparative ones. This essay proposes that these differences cannot be successfully adjudicated, and one candidate proportionality principle preferred over its rivals, in the abstract; a proportionality principle only makes sense as an integrated part of a more complete justificatory theory of criminal punishment. It then sketches a proportionality principle that best fits the responsibility-constrained pluralist theories of criminal punishment that currently predominate. The proportionality principle it favors provides that punishments should not be disproportionately severe, in noncomparative terms, relative to an agent’s culpability in relation to their wrongdoing. (shrink)

This article considers the proportionality requirement of the self-defense justification. It first lays bare the assumptions and the logic—and often illogic—underlying very strict accounts of the proportionality requirement. It argues that accounts that try to rule out lethal self-defense against threats to property or against threats of minor assault by an appeal to the supreme value of life have counter-intuitive implications and are untenable. Furthermore, it provides arguments demonstrating that there is not necessarily a right not to be (...) killed in defense against theft or minor assaults. While there is a general moral right of self-defense and a general right to life, the scope of these rights depends on certain social facts that—even within a liberal framework—can differ from one society to another. Moreover, the proportionality of self-defense does not depend on the rights of the aggressor alone, but also on a precautionary rule, shaped by the balance of interests of the society in question and aimed at protecting innocent people and other social interests. This rule can protect an aggressor even in cases where he does not have the right to such protection. (shrink)

This essay focuses on proportionality stricto sensu as a consequential test of balancing. The basic balancing rule establishes a general criterion for deciding between the marginal benefit to the public good and the marginal limit to human rights. Based on the Israeli constitutional jurisprudence, this essay supports the adoption of a principled balancing approach that translates the basic balancing rule into a series of principled balancing tests, taking into account the importance of the rights and the type of restriction. (...) This approach provides better guidance to the balancer, restricts wide discretion in balancing, and makes the act of balancing more transparent, more structured, and more foreseeable. The advantages of proportionality stricto sensu with its three levels of abstraction are several. It stresses the need to always look for a justification of a limit on human rights; it structures the mind of the balancer; it is transparent; it creates a proper dialog between the political brunches and the judiciary, and it adds to the objectivity of judicial discretion. Proportionality stricto sensu however has it critics: some claim that it attempts to balance incommensurable items; others that balancing is irrational. The answer to the critics is that it is a common base for comparison, namely the social marginal importance and that the balancing rules—basic, principled, concrete—supply a rational basis for balancing. A democracy must entrust the judiciary—the unelected independent judiciary—to be the final decision-maker—subject to constitutional amendments—about proper ends that cannot be achieved because they are not proportionality stricto sensu. (shrink)

I propose a contextualized conception of proportionality, which requires bringing the concrete context of answering/raising a particular causal inference question into the picture when assessing proportionality. So, the new formula is this: a cause-variable C is proportional to an effect-variable E relative to a given context T. This conception is bolstered by a brief exposition of recent scientific practice in causal feature learning. Moreover, it gets further support by showing how it readily and elegantly resolves a threat posed (...) by Franklin-Hall (2016). Finally, I discuss why my approach fares much better than some others. (shrink)

Proportionality matters. Intuitively, proportionality sets the ceiling on the amount of defensive violence that is permissible. A plausible view is that what justifies proportionality also justifies other defensive-violence requirements—for example, discrimination and necessity—and shows why other purported requirements are mistaken—for example, imminence. I argue that if defensive-violence proportionality is a part of moral reality, then there is a systematic justification of it. If there is a systematic justification of proportionality, then there is an adequate equation (...) for it. There is no adequate equation for proportionality. Hence, proportionality is not part of moral reality. As a result, non-consequentialism does not justify defensive violence. The last part of this paper briefly applies these findings to vaccine mandates. (shrink)

According to a well-known principle in democratic theory, all those whose interests are affected by a decision should have a say in it. ‘How much of a say?’ is the next question. One answer is the Proportionality Principle, according to which ‘people should have a say in a decision proportionally to the extent that their interests are affected by it’. It is often suggested that this principle should be implemented through weighted voting. This article considers an alternative: weighting as (...) part of internal deliberation before the casting of votes. Instead of weighting votes as we count them, we could apply the Principle to the more fundamental process by which citizens form their judgements about how to vote. This alternative approach conceives of citizens as fulfilling dual roles: first, as claim-makers advancing claims about what the collective decision should be, based inter alia on how it impacts their own interests, and, second, as adjudicators taking into account everyone’s claim by weighing it proportionally to the degree each claimant is affected by the collective decision. I examine the democratic and epistemic strengths of this alternative as well as its weaknesses, compared to the more standard way of implementing the Proportionality Principle via weighted voting. (shrink)

Proportionality in Action presents an empirical and comparative exploration of the proportionality doctrine, based on detailed accounts of the application of the framework by apex courts in six jurisdictions: Germany, Canada, South Africa, Israel, Poland and India. The analysis of each country is written and contextualized by a constitutional scholar from the relevant jurisdiction. Each country analysis draws upon a large sample of case law and employs a mixed methodological approach: an expansive coding scheme allows for quantitative analysis (...) providing comparable and quantifiable measurements, which is enriched by qualitative analysis that engages with the substance of the decisions and captures nuance, contextualizing the data and providing it with meaning. The book concludes with a comparative chapter that synthesizes some of the most interesting findings. Focusing on deviations of the practice of proportionality from theory, the authors conclude their argument in support of an integrated approach to the application of proportionality. (shrink)

Deciding the conflict between various rights and interests, especially in medical ethics where health and lives are in question, has significant challenges, and to obtain appropriate outcomes, it is necessary to properly apply the principles of non-discrimination and proportionality. Using the example of mandatory vaccination policies, we show that this task becomes even more difficult when these principles lead us to counterintuitive and paradoxical results. Although the general purpose of these principles is to ensure that decisions and policies seek (...) the highest and broadest possible enjoyment of rights for all (ie, the least restrictive solution), they achieve the complete opposite when applied to mandatory vaccination policies. To highlight and explain these paradoxical results, we present a typology of fifteen hypothetical mandatory vaccination policies containing various degrees of restriction and apply well-established non-discrimination and proportionality tests from constitutional law to each. We argue that mandatory vaccination policies exhibit two characteristics, namely the non-linear relationship between their general purposes and specific goals and the involvement of life and health, suggesting that more restrictive policies should prevail even though less restrictive policies might fail these tests. Using clearly structured and rigorous methodology from constitutional law, the proposed approach delivers a fresh view on the core ethical principles of non-discrimination and proportionality and a potentially useful tool in helping resolve also other challenges encountered in medical ethics beyond mandatory vaccination policies. (shrink)

Among the oldest extant medical ethics, the Hippocratic Oath prohibits the giving of a deadly drug, regarding this act as an egregious violation of a medical ethic that is exclusively therapeutic. Proportionate palliative sedation involves the administration of a deadly drug. Hence it seems to violate the venerable Hippocratic promise associated with the dawn of Western medicine not to give a deadly drug. Relying on distinctions commonly employed in the analysis and evaluation of human actions, this article distinguishes physician-assisted suicide (...) and euthanasia, as acts that necessarily violate the prohibition against giving a deadly drug, from proportionate palliative sedation, as an act that does not. (shrink)

A basic principle in sentencing offenders is proportionality. However, proportionality judgments are often left to the discretion of the judge, raising familiar concerns of arbitrariness and bias. This paper considers the case for systematizing judgments of proportionality in sentencing by means of an algorithm. The aim of such an algorithm would be to predict what a judge in that jurisdiction would regard as a proportionate sentence in a particular case. A predictive algorithm of this kind would not (...) necessarily undermine justice in individual cases, is consistent with a particularistic account of moral judgment, and is attractive even in the face of uncertainty as to the legitimate purposes of punishment. (shrink)

How should liberal-democratic governments deal with emerging vaccination hesitancy when that leads to the resurgence of diseases that for decades were under control? This article argues that vaccination policies should be justified in terms of a proper weighing of the rights of children to be protected against vaccine-preventable diseases and the rights of parents to raise their children in ways that they see fit. The argument starts from the concept of the ‘best interests of the child involved’. The concept is (...) elaborated for this context into the dual regime structure in which parents have fiduciary authority over what they consider to be best for their child, and the state has fiduciary authority over a child’s basic interests. This argument leads to conditional mandatory vaccination programs that should be informed by a correct balancing of the two legal principles of proportionality and precaution. This results in contextual childhood vaccination policies of upscaling interference: a three-tiered approach of increased intrusion, from voluntary program when possible and mandatory or even compulsory programs when necessary to protect the child’s basic interests. (shrink)

Proportionality in the resort to war determines a limit to the amount of harm it can be permissible to cause for the sake of achieving a just cause. It seems to follow that if a war has caused harm up to that limit but has not achieved the just cause, it should be terminated. I argue, however, that this is a mistake. Judgments of proportionality are entirely prospective and harms suffered or inflicted in the past should in general (...) be ignored. Yet past losses that could be partially redeemed by the achievement of the just cause may be an exception. (shrink)

Proportionality—the idea that causes are neither too general nor too specific for their effects—seems to recommend implausibly disjunctive causes (McGrath, 1998 ; Shapiro & Sober, 2012 ; Franklin-Hall, 2016 ). I argue that this problem should be avoided by appeal to the notion of cohesion. I propose an account of cohesion in terms of the similarity structure of property-spaces, argue that it is not objectionably mysterious, and that alternative approaches—based on naturalness, interventionism, and contrastivism—are inadequate without appeal to it. (...) In an appendix, I show how my proposal can be perspicuously formalized by adapting structural equation models. (shrink)

This paper examines whether the prospect of compensation may render otherwise disproportionate harms proportionate. It argues that we should reject this possibility. Instead, it distinguishes duties of compensation as a requirement of rectificatory justice from a harm’s degree of compensability, and argues that only the latter is relevant to proportionality. On this view, failing to compensate constitutes a distinct wrong, while harms that are not adequately compensable carry extra weight in proportionality calculations. This explains how the prospect of (...) compensation affects permissions to harm, without relying on the dubious assumption that disproportionate harms may be rendered proportionate by future compensation. (shrink)

Introduction -- What is proportionality? -- Proportionality : a multiplicity of meanings -- Proportionality in the just war tradition -- Proportionality in international humanitarian law -- Proportionality in human rights law and morality -- The uniqueness of jus in bello proportionality -- Countermeasures and counterinsurgency -- Human shields and risk -- Targeted killings and proportionality in law : two models -- The nature of war and the idea of "cyberwar" -- Thresholds of jus (...) in bello proportionality. (shrink)

I come to grips with the deontological critique of constitutional proportionality that asserts that this doctrine ignores rights and slips into the utilitarian maximisation of societal interests. I...

Global descriptions of proportionality as a methodology, and the rulings that are flagged up to illustrate its operation, are regularly extracted from a handful of countries—North-Atlantic democracies and Global South jurisdictions whose rulings are available in English. This leaves in the shadow important dimensions of the practice, and supports contentions about global traits that are not always exact. This chapter discusses questions to be considered when thinking about enriching the global canon on proportionality with contributions from Latin America. (...) It provides information about regional traits, including the distinctive status of Colombian constitutional doctrines and the existence of minority paradigms that are representative of alternative traditions. Afterwards, it identifies a set of rulings that should enter the global proportionality canon on different grounds: methodologic expansion, functional expansion, and thematic expansion. These rulings provide examples of proportionality being used to enforce social rights, combat state’s omissions, evaluate state’s insufficient or regressive action, or assess the measures taken in a process of transitional justice. A ruling that anticanonically uses proportionality to weaken the normative import of social rights is also identified and discussed. (shrink)

In punishment, proportionality is the systematic mathematical relationship between the significance of the wrongdoing and the amount of punishment that may be imposed on the wrongdoer. In this chapter, Kershnar argues that there is no adequate equation for proportionality. The lack of an adequate equation rests on intuitions and the absence of a shared metric. If there is no equation for proportionality, then there is no proportionality. This is because if there is no equation for (...) class='Hi'>proportionality, then there is no general justification for proportionality. Purported justifications of punishment that lack proportionality—specifically, consequentialism and consent theory—are implausible. The lack of proportionality, then, is a threat to the notion that some punishment is justified and, more generally, non-consequentialism. (shrink)

Science advice bodies increasingly shape public policy. Yet, their analyses and recommendations routinely involve non-epistemic value judgments that sit uneasily with ideals of democracy and separation of powers. We argue that in liberal constitutional democracies the political legitimacy of such judgments can be enhanced by integrating structured proportionality analysis into the workflow of policy-recommending advisory bodies. This deliberative procedure – first developed by constitutional courts – brings attention to policies’ impact on protected rights and amounts to a multi-pronged scrutiny (...) of the justifiability of a policy which infringe on rights. We show, first, that existing guidelines for science advice bodies nationally and in international organizations implicitly acknowledge non-epistemic judgments but under-specify how to deal with them. Second, recent philosophy of science rightly foregrounds the democratic scrutiny of values (and so representation, alignment, and participation) but underemphasizes rights-based constraints. Our proposal reorients advisory practice toward rights-sensitive, deliberative justification that science advice bodies can apply ex ante—where these bodies often possess superior expertise on relevant aspects such as the suitability and necessity of a policy. Embedding proportionality analysis both mid-stream (to shape option generation) and in public justifications (to enable contestation and deliberation across branches and publics) improves transparency, mitigates overreach, and aligns advice with the rule-of-law and rights commitments of liberal democracies. The final part discusses scope conditions, institutional implications and limitations of our proposal. Structured proportionality analysis does not guarantee optimal outcomes, but supplies a stable, recognized method to discipline non-epistemic judgments and thereby enhance the legitimacy of science-based policy advice. (shrink)

Proportionality is widely accepted as a necessary condition of justified self-defense. What gives rise to this particular condition and what role it plays in the justification of self-defense seldom receive focused critical attention. In this paper I address the standard of proportionality applicable to personal self-defense and the role that proportionality plays in justifying the use of harmful force in self-defense. I argue against an equivalent harm view of proportionality in self-defense, and in favor of a (...) standard of proportionality in self-defense that requires comparable seriousness and takes into account the wrong, as opposed simply to the harm that the victim is fending off. I distinguish the standard of proportionality in self-defense from proportionality in circumstances of necessity, and I discuss whether proportionality is an internal or an external constraint on the right of self-defense. (shrink)

Proportionality is a central and globally spread argumentation technique in public law. This article provides a conceptual introduction to proportionality and argues that such a domain-specific form of argumentation is particularly interesting for argument mining. As a major contribution of this article, we share a new dataset for which proportionality has been annotated. The dataset consists of 300 German Federal Constitutional Court decisions annotated at the sentence level (54,929 sentences). In addition to separating textual parts, a fine-grained (...) system of proportionality categories was used. Finally, we used these data for a classification task. We built classifiers that predict whether or not proportionality is invoked in a sentence. We employed several models, including neural and deep learning models and transformers. A BERT-BiLSTM-CRF model performed best. (shrink)

The lex talionis of the Old Testament has been widely perceived—understandably, but mistakenly—as a barbaric law of retribution in kind. It is better understood as a seminal expression of restraint and proportionality as moral principles of punishment. This has been recognized from the earliest times. Over the intervening centuries, the lex talionis has lost neither its moral significance nor its penal relevance. This is reflected in H.L.A. Hart's synthesis of modern retributivist and utilitarian theories of punishment and, again, in (...) contemporary Canadian law through the recognition of proportionality as the fundamental principle of sentencing under the Criminal Code. The tension between this fundamental principle and Canada's increasing resort to mandatory minimum sentences of imprisonment is examined briefly in this light. (shrink)

The jurisdictional immunity of international organizations often conflicts with the right to access to courts. In the Waite and Kennedy case, the European Court of Human Rights (ECtHR) ruled that the recognition of jurisdictional immunity for an international organization depends on whether the organization has an internal dispute resolution mechanism that aggrieved individuals can access. The Court described this approach as the “test of proportionality.” However, the ECtHR did not clarify the specific content of this proportionality test. In (...) other words, the Court has not established clear standards for evaluating whether an organization’s internal dispute resolution mechanism meets the requirements of proportionality. This article seeks to establish a comprehensive framework for the proportionality test, particularly an exploration of its substantive standards. This will be achieved by analyzing the ECtHR’ judgment in the Waite and Kennedy case, as well as other related case law that has applied the proportionality test. The authors find that the Court in Waite and Kennedy case determined that aggrieved individuals must have “reasonable alternative means to protect effectively” their right to access to courts. Consequently, it can be argued that reasonableness and effectiveness are the key standards underlying the proportionality test. These standards should guide domestic courts when evaluating the adequacy of any internal dispute resolution mechanism provided by an international organization. (shrink)

Consider the beginningless sequence: ... being less than 0.01 grams, being less than 0.1 grams, being less than 1 gram, being less than 10 grams ... There is no super-determinate in this chain. Just as the possibility of bottomless constitution shows that there may be no fundamental layer of reality with respect to objects , the possibility of bottomless determination shows that there may be no fundamental level of reality with respect to properties . This possibility supports Stephen Yablo's (...) class='Hi'>proportionality principle that the cause of an event is the most specific property that makes a difference. (shrink)

The principle that a sentence should be proportionate to the seriousness of the offence remains at the centre of penal practice and scholarly debate. This volume explores highly topical aspects of proportionality theory that require examination and further analysis. von Hirsch and Ashworth explore the relevance of the principle of proportionality to the sentencing of young offenders, the possible reasons for departing from the principle when sentencing dangerous offenders, and the application of the principle to socially deprived offenders. (...) They examine the claim that the principle tends to be associated with greater severity in sentencing, and explore the relevance of penance and of restorative justice to proportionality theory. Their examination of arguments and counter-arguments culminates in a re-statement of the main criteria for proportionate sentencing.The authors are well known for their previous writings on proportionality theory, and this volume broadens the theory to deal with important contemporary issues in crime and punishment. (shrink)

Building upon the notion of proportionality, this article proposes a line of argument in favor of nonreductive explanations in the social sciences. I argue that many higher-level explanations in the social sciences, i.e., explanations over and above the individual-level, are legitimate explanations insofar as their explanantia are proportional to their given explananda of interest. These higher-level explanations are often favored over their individual-level reductive counterparts because they are strictly more informative than their reductive counterparts.

A statement of the form ‘C caused E’ obeys the requirement of proportionality precisely when C says no more than what is necessary to bring about E. The thesis that causal statements must obey this requirement might be given a semantic or a pragmatic justification. We use the idea that causal claims are contrastive to criticize both.

We argue that, in order to explain the relative strengths of our reasons to contribute to different collective endeavours, approaches to the ethics of collective action must understand the strengths of our reasons to make a given contribution as proportional to its expected benefits, or its chances of bringing about benefits in proportion to their magnitudes. The view that most clearly meets this proportionality requirement is the expected consequences approach, which identifies our reasons to perform an act with its (...) expected benefits. We contend that views other than the expected consequences approach must similarly proportion the expected degrees of what they take to be reason-giving features of a contribution – such as its virtuousness, appropriate expression, support by considerations of fairness, or helping without making a difference – to the contribution’s expected benefits. The proportionality requirement explains why we should spend more time participating in strategic social, political, and labour movement activities, while avoiding unproductive conflicts and merely performative activities. We conclude that the proportionality requirement, and the ability of views other than the expected consequences approach to meet it, are important for thinking and communicating about the ethics of collective action in ways that are simultaneously most compelling and most strategic. (shrink)

During the COVID-19 pandemic, hospitals in Japan implemented strict visitation restrictions. While national guidance evolved and COVID-19 was legally reclassified in May 2023, publicly available institutional policies indicate that significant limitations on family presence persisted beyond the acute emergency phase. Building on McTernan’s argument that visitor bans infringe freedom of association and require strong justification, this response highlights an additional ethical concern: the absence of explicit sunset mechanisms governing the termination of emergency restrictions. The Japanese case illustrates how precautionary measures (...) introduced under conditions of uncertainty may become embedded in routine care without clearly defined criteria for reassessment and withdrawal. Three ethical issues are particularly salient: proportionality over time, the protection of relational autonomy and patient rights, and equity across institutions. Proportionality is dynamic rather than static; measures justified at one stage of a crisis may become excessive as circumstances change. Without structured review processes, restrictive practices risk persisting by default rather than by renewed justification. Ethical evaluation of visitation policies should therefore address not only their initial justification but also the institutional mechanisms that ensure their timely relaxation. Incorporating explicit sunset provisions would help maintain proportionality and safeguard patient rights in future public-health emergencies. (shrink)

The principle of proportionality demands that a war (or action in war) achieve more goods than bads. In the philosophical literature there has been a wealth of work examining precisely which goods and bads may count toward this evaluation. However, in all of these discussions there is no mention of one of the most certain bads of war, namely the psychological harm(s) likely to be suffered by the combatants who ultimately must fight and kill for the purposes of winning (...) in conflict. This paper argues that harms to one’s own soldiers must be included in proportionality judgments, and goes on to argue that one of the most significant harms one’s soldiers face are the psychological stresses and traumas associated with combat. The arguments draw on a growing wealth of psychological literature exploring the connections between combatancy and psychological trauma, and highlight, in particular, the uniquely negative impact which killing has on a combatant’s mental well-being. The paper concludes that these factors place an almost certain and rather weighty negative weight in any proportionality calculations concerning wars with ground combatants who must fight “up close and personal”, and that for more remote warfighters, there is also evidence to show that they may suffer deep psychological harm as a result of their combat roles as well. The argument, however, does not attempt to demonstrate that these factors render war impermissible. Rather, it merely shows that these harms, or bads, which can be quite significant, must be factored into our considerations of proportionality. The arguments themselves are rather uncontroversial, but they bring to light an element in the moral calculus which is sadly overlooked in most discussions of the ethics of war. (shrink)

It is shown that certain kinds of behavior, which hitherto were expected to be characteristic for classical gravity and quantum field theory in curved spacetime, as the infinite dimensional Bondi-Metzner-Sachs symmetry, holography on event horizons and an area proportionality of entropy, have in fact an unnoticed presence in Minkowski QFT.This casts new light on the fundamental question whether the volume proportionality of heat bath entropy and the (logarithmically corrected) dimensionless area law obeyed by localization-induced thermal behavior are different (...) geometric parametrizations which share a common primordial algebraic origin. Strong arguments are presented that these two different thermal manifestations can be directly related, this is in fact the main aim of this paper.It will be demonstrated that QFT beyond the Lagrangian quantization setting receives crucial new impulses from holography onto horizons.The present paper is part of a project aimed at elucidating the enormous physical range of “modular localization”. The latter does not only extend from standard Hamiltonian heat bath thermal states to thermal aspects of causal- or event-horizons addressed in this paper. It also includes the recent understanding of the crossing property of formfactors whose intriguing similarity with thermal properties was, although sometimes noticed, only sufficiently understood in the modular setting (Schroer in arXiv:0905.4006 (2009)). (shrink)

In ‘Proportionality in Causation, Part I: Theories’, I presented various ways of understanding the idea that causes which are ‘proportional’ to their effects are in some sense preferable. In this companion article, I discuss the principal applications of the resulting theories of proportionality, and the challenges they face.

Some collateral harms affecting enemy civilians during a war are agentially mediated – for example, the US-led invasion of Iraq in 2003 sparked an insurgency which killed thousands of Iraqi civilians. I call these ‘collaterally enabled harms.’ Intuitively, we ought to discount the weight that these harms receive in the ‘costs’ column of our ad bellum proportionality calculation. But I argue that an occupying military force with de facto political authority has a special obligation to provide minimal protection to (...) the civilian population. As a result, when an occupying military force collaterally enables a harm affecting the civilian population, the weight that the harm ought to receive in the ad bellum proportionality calculation is unaffected by the fact that the harm is agentially mediated – it ought to be weighed at least as heavily as those harms that the occupying force collaterally commits directly. As a result, satisfying the ad bellum proportionality constraint in wars of territorial occupation is more difficult than it has been thought. (shrink)

Despite its preeminent position in the just war tradition, the concept of proportionality is not well understood by military leaders. Especially lacking is a realization that there are four distinct types of proportionality. In determining whether a particular resort to war is just, national leaders must consider the proportionality of the conflict, i.e., balance the expected gain or just redress against the total harm likely to be inflicted by the impending armed action. This proportionality consideration is (...) called jus ad bellum proportionality. The second type of proportionality discussed is a continuing re-evaluation of the proportionality, taking into account the changing situation. The last true proportionality discussed is a consideration of hostile action taking during a conflict, or jus in bello proportionality. This consideration weighs the expected military gain of a particular action against the collateral damage and injuries that are expected from the act. Finally, the fourth category addressed is ‘political proportionality’, which is not a true proportionality consideration, but is rather self-interested deliberation on the possible political and military outcomes of actions. In some instances, it could be referred to as a measured response. A better understanding of proportionality in all its forms will help military leaders to give appropriate and moral advice on the potential resort to war, as well as on the conduct of military actions in war. The recent US war with Iraq in the spring of 2003 in defiance of the wishes of the majority of the UN Security Council, and especially with the potential for high noncombatant casualties in Baghdad, makes a discussion of the proper conduct of war even more poignant. (shrink)

Criminal theorists struggle to account for the “totality principle”—the idea that no matter how many small crimes you commit, your punishment should not exceed that for a more serious offense. Andrew Ashworth, for instance, argues that “overall proportionality” should be preserved but that this is a “pragmatic” solution. This paper argues that a retributivist can accept overall proportionality without abandoning her retributivism. I offer two lines of defense. The first is to show that the unit that we are (...) aggregating may be more complex than first appears. The second relies on insights from the headaches versus lives literature, and how we should rescue one person dying before preventing one million people from headaches. The harms that we impose on others, and the harms that defendants suffer because of punishment, do not exist on one single scale. Hence, the true problem, I maintain, is not how culpability functions, but how our particular mode of punishment does. When we only have one primary mechanism to punish —put people in prison—then aggregating offenses appears as though it must quickly lead to numerous acts of littering being punished more than arson. With a more nuanced punitive response, we can punish minor offenses every time without surpassing the kinds of punishment we impose on more significant offenses. (shrink)

Efforts to apply the principle of proportionality to criminal sentences are notoriously problematic. But even though they are daunting, only a few legal philosophers believe we should give up trying to do so. Perhaps we can make progress overcoming some of the many legal difficulties by attending to how the principle is applied in non-legal contexts—that is, in contexts I call personal life. Proportionality, I believe, is an attractive principle in penal sentencing because it is an attractive principle (...) in ordinary situations in which persons are sanctioned for wrongdoing. I briefly mention several familiar non-legal contexts in which sanctions have recently been imposed on celebrities or public figures for real or perceived wrongdoing. My hope is that sensitivity to how the principle of proportionality is interpreted in these contexts might facilitate efforts to apply this principle to sentencing domains. At first glance, proportionality as applied in non-legal contexts appears to differ from its penal analogue. I describe some of these alleged differences. Among the foremost is that judgments of proportionality in personal life often respond to how the transgressor has behaved apart from the particular incident that has attracted media attention. Penal sanctions, by contrast, are said to be imposed only for the particular crime charged. I argue that this difference is more apparent than real. I conclude that we can reach a few modest insights about how to apply the principle of proportionality in criminal sentencing by attending to its counterpart in personal life. (shrink)

Just wars are supposed to be proportional responses to aggression: the costs of war must not greatly exceed the benefits. This proportionality principle raises a corresponding ‘interpretation problem’: what are the costs and benefits of war, how are they to be determined, and a ‘measurement problem’: how are costs and benefits to be balanced? And it raises a problem about scope: how far into the future do the states of affairs to be measured stretch? It is argued here that (...) weapons innovation always introduces costs, and that these costs cannot be determined in advance of going to war. Three examples, the atomic bomb, the AK-47 and the ancient Greek catapult, are given as examples. It is therefore argued that the proportionality principle is inapplicable prospectively. Some replies to the argument are discussed and rejected. Some more general defences of the proportionality principle are considered and also rejected. Finally, the significance of the argument for Just War Theory as a whole is discussed. (shrink)

With a focus on the Common Law jurisdiction of England and Wales and the Civil Law jurisdiction of Vietnam, this article provides an analytical framework to address the uncertain jurisprudence of minor offence processes. The article’s approach is to seek an account of crime and criminal process that is most suitable for practice and most compatible with the broad notion of ‘criminal charge’ under international human rights instruments. It is argued that minor offences should be considered forms of less serious (...) crimes that are subject to short periods of imprisonment or non-custodial punishments and dealt with by summary procedures. The fragmentation of minor offences demands an approach to procedural pragmatism and procedural proportionality; that is, the procedure for each type of offence should be proportionate to the severity of punishment and fair as a whole. (shrink)