HLS Faculty Scholarship
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This collection provides open access to scholarly articles authored or co-authored by Harvard Law School faculty. All material in the repository is also harvested by search engines (such as Google Scholar) and Open Archives Initiative data harvesters.
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Publication Fairness versus Welfare: Notes on the Pareto Principle, Preferences, and Distributive Justice
(University of Chicago Press, 2003) Kaplow, Louis; Shavell, StevenIn Fairness versus Welfare, we advance the thesis that social policies should be assessed entirely on the basis of their effects on individualsâ wellâbeing. This thesis implies that no independent weight should be accorded to notions of fairness (other than many purely distributive notions). We support our thesis in three ways: by demonstrating how notions of fairness perversely reduce welfare, indeed, sometimes everyoneâs wellâbeing; by revealing numerous other deficiencies in the notions, including their lack of sound rationales; and by providing an account of notions of fairness that explains their intuitive appeal in a manner that reinforces the conclusion that they should not be treated as independent principles in policy assessment. In this essay, we discuss these three themes and comment on issues raised by Richard Craswell, Lewis Kornhauser, and Jeremy Waldron.
Publication Any Non-welfarist Method of Policy Assessment Violates the Pareto Principle
(University of Chicago Press, 2001) Kaplow, Louis; Shavell, StevenThe public at large, many policymakers, and a number of economists hold views of social welfare that are nonâwelfarist. That is, they attach some importance to factors other than the effects of policies on individualsâ utilities. We show, however, that any nonâwelfarist method of policy assessment violates the Pareto principle.
Publication Fairness Versus Welfare
(Harvard Law School, 2001) Kaplow, Louis; Shavell, StevenThe thesis of this Article is that the assessment of legal policies should depend exclusively on their effects on individuals'welfare. In particular, in the evaluation of legal policies, no independent weight should be accorded to conceptions of fairness, such as corrective justice and desert in punishment. (However, the logic leading to this conclusion does not apply to concern about equity in the distribution of income, which is often discussed under the rubric of fairness.) Our analysis begins with the argument that, when the choice of legal rules is based even in part on notions of fairness, individuals tend to be made worse off. Indeed, if any notion of fairness is ascribed evaluative weight, everyone will necessarily be made worse off in some situations. Moreover, when we examine principles of fairness and the literature that advances them, we find it difficult to identify reasons that, on reflection, justify granting importance to these principles at the expense of individuals' well-being. Nevertheless, policy analysts and the population at large obviously find notions of fairness appealing. We conjecture that the notions' attractiveness is rooted in several factors. Namely, individuals who believe in ideas of fairness tend to behave better toward others; the notions may serve as proxy goals for instrumental objectives; and individuals may have a taste for satisfaction of the notions. Furthermore, each of these factors is a reason that notions of fairness are relevant under a welfare-oriented normative approach to social decisionmaking. As we explain, however, none of these factors warrants treating notions of fairness as independent evaluative principles. We develop our thesis through consideration of specific conceptions of fairness that are employed in major areas of the law: torts, contracts, legal procedure, and law enforcement. We also discuss the implications of our analysis for our primary audience, legal academics and other legal policy analysts, as well as for government officials, notably, legislators, regulators, and judges.
Publication Property Rules Versus Liability Rules: An Economic Analysis
(Harvard Law School, 1996) Kaplow, Louis; Shavell, StevenShould property rights be protected absolutely -- by property rules -- or instead by the requirement that infringing parties pay for harm done--that is, by liability rules? In this article, we present a systematic economic analysis of this fundamental question. Our primary object is to explain why liability rules are often employed to protect individuals against harmful externalities (such as pollution and automobile accidents), whereas property rules are generally relied upon to protect individuals from having their possessions taken from them, thereby ensuring a basic incident of ownership.
In the course of our analysis, we suggest that a variety of commonly held beliefs about property and liability rules are in error, and we also derive results bearing on legal policy. Notably, we show that, for controlling some important externalities, liability rules (and pollution taxes) are superior to property rules (including many forms of regulation) even when damages must be set using only limited information about harm.
Publication Reply to Ripstein: Notes on Welfarist versus Deontological Principles
(Cambridge University Press, 2004) Kaplow, Louis; Shavell, StevenIn Fairness versus Welfare (FVW), we advance the thesis that social policies should be assessed entirely with regard to their effects on individuals' well-being. That is, no independent weight should be accorded to notions of fairness such as corrective or retributive justice or other deontological principles. Our claim is based on the demonstration that pursuit of notions of fairness has perverse effects on welfare, on other problematic aspects of the notions, and on a reconciliation of our thesis with the evident appeal of moral intuitions. Here we summarize our three arguments and explain that Professor Ripstein's commentary largely fails to respond to them. (We will pass over some of what he says because it has little to do with our book, and we will not address his rather surprising attacks on our scholarship because the reader can readily verify their inaccuracy.)
Publication Should Legal Rules Favor the Poor? Clarifying the Role of Legal Rules and the Income Tax in Redistributing Income
(University of Chicago Press, 2000) Kaplow, Louis; Shavell, StevenIn our 1994 article in this Journal, we demonstrated that legal rules should not be adjusted to disfavor the rich and favor the poor in order to redistribute income, because the income tax and transfer system is a more efficient means of redistribution. In this article, we revisit our argument and others that favor relying on the income tax system to redistribute income, and we then focus on qualifications to our argument that we previously offered. In particular, we elaborate on a qualification that is the subject of Chris Sanchiricoâs article in this issue of the Journal and explain why it has only a tangential bearing on the question whether legal rules should favor the poor and why it is of doubtful practical importance.
Publication Accuracy in the Determination of Liability
(University of Chicago Press, 1994) Kaplow, Louis; Shavell, StevenNo abstract provided.
Publication Any Nonâwelfarist Method of Policy Assessment Violates the Pareto Principle: Reply
(University of Chicago Press, 2004) Kaplow, Louis; Shavell, StevenNo abstract provided.
Publication Why the Legal System Is Less Efficient than the Income Tax in Redistributing Income
(University of Chicago Press, 1994) Kaplow, Louis; Shavell, StevenNo abstract provided.
Publication Optimal Law Enforcement with Self-Reporting of Behavior
(University of Chicago Press, 1994) Kaplow, Louis; Shavell, StevenSelf-reporting--the reporting by parties of their own behavior to an enforcement authority--is a commonly observed aspect of law enforcement, such as in the context of environmental and safety regulation. We add self-reporting to the model of the control of harmful externalities through probabilistic law enforcement, and we characterize the optimal scheme. Self-reporting offers two advantages over schemes without self-reporting: enforcement resources are saved because individuals who report their harmful acts need not be detected, and risk is reduced because individuals who report their behavior bear certain rather than uncertain sanctions.