Faculty Bibliography
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When, and why, might it be thought immoral to commit a breach of contract? The answer to this fundamental question is not obvious, because, as is stressed, and as has been overlooked in addressing the question, contracts do not usually provide explicitly for the particular events that are observed to occur. When a contract does not expressly address a contingency that occurs, the morality of breach is assumed here to depend on what the contract would have said had it addressed the contingency. This assumption is explained to imply that breach is not immoral if expectation damages would have to be paid for breach, but that breach might be immoral if damages are less than the true expectation, as is probable. This conclusion is related to the results of a survey that was conducted of individuals' attitudes toward the morality of breach. The conclusion is also related to the views of commentators on the morality of breach and of those on the "efficiency" of breach.
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The appeals process—whereby litigants can have decisions of adjudicators reviewed by a higher authority—is a general feature of formal legal systems (and of many private decision-making procedures). The appeals process leads to the making of better decisions because it constitutes a threat to adjudicators whose decisions would deviate too much from socially desirable ones. Further, it yields this benefit without absorbing resources to the extent that adjudicators can anticipate when appeals would occur and would want to make decisions to forestall the actual occurrence of appeals.
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This Essay advances a simple proposal that could reduce civil litigation costs in the country by about half, yet without compromising the functioning of our liability system in a significant way. The proposal has two parts. First, courts would select randomly for litigation only half the cases brought before them; courts would not allow the other half to proceed. Second, in cases accepted for litigation and in which judgments for damages issue, courts would double the level of damages. Thus, the proposal might be described as one of random adjudication with dobule damages.
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Minimum asset and liability insurance requirements must often be met in order for parties to participate in potentially harmful activities. Such financial responsibility requirements may improve parties' decisions whether to engage in harmful activities and, if so, their efforts to reduce risk. However, the requirements may undesirably prevent some parties with low assets from engaging in activities. Liability insurance requirements tend to improve parties' incentives to reduce risk when insurers can observe levels of care, but dilute incentives to reduce risk when insurers cannot observe levels of care. In the latter case, compulsory liability insurance may be inferior to minimum asset requirements.
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It is shown in this paper that there may exist an intrinsic advantage in focusing law enforcement effort on a subgroup of possible violators of law, rather than applying law enforcement effort uniformly over the relevant population of potential violators. For example, it may be desirable for the tax audit rate to be higher in one region of the country than another. This may be desirable even though, as is assumed, the frequency of violations does not differ among regions.
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In 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.)
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In our 2001 article in the Journal of Political Economy, we show that any non-welfarist method of policy assessment violates the Pareto principle. In their Comment, Fleurbaey, Tungodden, and Chang question whether our result is fully general without imposing what they regard to be strong assumptions (transitivity and independence). However, as we explain in this Reply, their argument is irrelevant to the thrust of our article. Specifically, their argument concedes that if any particular society uses any non-welfarist principle, there may be a conflict with the Pareto principle. This result means that the vast multitude of principles proposed by policy-makers, philosophers, and others indeed fall within our demonstration.
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What effects do laws have? Do individuals drive more cautiously, clear ice from sidewalks more diligently, and commit fewer crimes because of the threat of legal sanctions? Do corporations pollute less, market safer products, and obey contracts to avoid suit? And given the effects of laws, which are socially best? Such questions about the influence and desirability of laws have been investigated by legal scholars and economists in a new, rigorous, and systematic manner since the 1970s. Their approach, which is called economic, is widely considered to be intellectually compelling and to have revolutionized thinking about the law. In this book Steven Shavell provides an in-depth analysis and synthesis of the economic approach to the building blocks of our legal system, namely, property law, tort law, contract law, and criminal law. He also examines the litigation process as well as welfare economics and morality. Aimed at a broad audience, this book requires neither a legal background nor technical economics or mathematics to understand it. Because of its breadth, analytical clarity, and general accessibility, it is likely to serve as a definitive work in the economic analysis of law.
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This paper contains the chapters on welfare economics, morality, and the law from a general, forthcoming book, Foundations of Economic Analysis of Law (Harvard University Press, 2003). I begin in chapter 26 with a discussion of the normative foundations of economic analysis, namely, the subject of welfare economics. I also describe notions of morality and fairness, which play an important, if dominant, role in much normative discourse about law, and I discuss the connections between welfare economics and morality. A theme of this discussion is that notions of morality have functional aspects, and that, for a complex of reasons, they also take on importance in their own right to individuals. Then in chapter 27, I consider the observed relationship between law and morality, and comment on what might be thought to be the optimal relationship between law and morality. In chapter 28, I discuss issues concerning income distributional equity and the law, including the question of whether the distributional effects of legal rules should influence their selection. The answer to this question will be a qualified no, given that society has an income tax system that can serve to redistribute income or to correct problems with distribution that arise due to the effects of legal rules.
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This paper contains the chapters on litigation and the legal process from a general, forthcoming book, Foundations of Economic Analysis of Law (Harvard University Press, 2003). In chapter 17, I consider the basic theory of litigation. Here I describe the three phases of litigation: its initiation through suit, the determination of whether the parties will settle their case or proceed to trial, and, if trial results, the trial expenditures. I also analyze the social desirability of their decisions, a major theme being that the private incentives to litigate may diverge from what is socially desirable. In chapter 18, I extend the basic theory of litigation, examining among other issues the bringing of negative value suits, shifting of legal fees to losers at trial, lawyer-client fee arrangements, and the influence of insurers on litigation. Then, in chapter 19, I discuss several general aspects of the legal process not considered in the basic theory and its extensions, including private systems of adjudication, the value of accuracy in adjudication, the appeals process, and the function of legal advice.
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This part deals with the basic elements of property law. I begin in chapter 7 by examining the fundamental question of what justifies the social institution of property, that is, the rationale for the rights that constitute what we commonly call ownership. I also discuss examples of the emergence of property rights. Then I consider a number of important issues about property rights. In chapter 8, I inquire about the division of property rights (property rights may be divided contemporaneously, over time, and according to contingency). In chapter 9, I study a variety of issues about the acquisition and transfer of property, including the discovery of unowned or lost property, registration systems for transfer of property, and the transfer of property at death. In chapter 10, I investigate externalities' and property -- problems concerning cooperation and conflict in the use of property, together with the resolution of such problems through bargaining and legal rules. In chapter 11, I discuss public property; here I address the question of why the state should own property, and also the manner of state acquisition of property through purchase or by the exercise of powers of eminent domain. Finally, in chapter 12, I analyze the special topic of intellectual property.
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This paper contains the chapters on public enforcement of law and on criminal law from a general, forthcoming book, Foundations of Economic Analysis of Law (Harvard University Press, 2003). By public law enforcement is meant the use of public law enforcement agents -- such as police, tax inspectors, regulatory personnel -- to enforce legal rules. A number of important dimensions of public law enforcement may be distinguished. One is the choice of the basic rule of liability: whether liability is strict or fault-based, and whether liability is imposed only if harm is done or may be imposed on the basis of acts alone (independently of the occurrence of harm). A second dimension of enforcement is the type of sanction, whether monetary or nonmonetary, notably, imprisonment. A third aspect of enforcement is the magnitude of sanctions. And a fourth dimension of enforcement is the degree of enforcement effort, which determines the probability of imposition of sanctions. These dimensions of enforcement are discussed in the chapters that follow. In chapter 20, the basic theory of public enforcement employing monetary sanctions is discussed; in chapter 21, the basic theory of enforcement using nonmonetary sanctions is examined; and in chapter 22, extensions to the basic theory are considered. Then, in chapter 23, functions of sanctions apart from deterrence, namely, incapacitation, rehabilitation, and retribution, are discussed. Finally, in chapter 24, the subject of criminal law is addressed against the background of the theory of public enforcement of law.
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This paper contains the chapters on welfare economics, morality, and the law from a general, forthcoming book, Foundations of Economic Analysis of Law (Harvard University Press, 2003). I begin in chapter 26 with a discussion of the normative foundations of economic analysis, namely, the subject of welfare economics. I also describe notions of morality and fairness, which play an important, if dominant, role in much normative discourse about law, and I discuss the connections between welfare economics and morality. A theme of this discussion is that notions of morality have functional aspects, and that, for a complex of reasons, they also take on importance in their own right to individuals. Then in chapter 27, I consider the observed relationship between law and morality, and comment on what might be thought to be the optimal relationship between law and morality. In chapter 28, I discuss issues concerning income distributional equity and the law, including the question of whether the distributional effects of legal rules should influence their selection. The answer to this question will be a qualified no, given that society has an income tax system that can serve to redistribute income or to correct problems with distribution that arise due to the effects of legal rules.
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Accident law is the body of legal rules governing the ability of victims of harm to sue and to collect payments from those who injured them. This paper contains the chapters on accident law from a general, forthcoming book, Foundations of Economic Analysis of Law (Harvard University Press, 2003). The analysis is first concerned (chapters 2-4) with the influence of liability rules on incentives to reduce accident risks. Then consideration of accident law is broadened (chapter 5) to reflect the effect of liability rules on compensation of victims and the allocation of risk. In this regard a central issue is the roles of victims' insurance and of liability insurance, and how they alter the incentives inherent in liability rules. Finally, the administrative costs of the liability system, namely, the private and public legal costs of litigation, are examined (chapter 6). These costs are significant and thus bear importantly on whether use of accident law is socially desirable. It is emphasized that social intervention - either to curtail use of the legal system or to encourage it - may well be needed because the private incentives to use the system are generally different from the socially desirable incentives to do so.
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Contract law governs agreements between parties. This paper contains the chapters on contract law from a general, forthcoming book, Foundations of Economic Analysis of Law (Harvard University Press, 2003). Chapter 13 presents an overview of the subject. Chapter 14 is concerned with contract formation, that is, with the process through which parties find contracting partners, with aspects of contract negotiation, and with the rules governing when an arrangement between parties becomes legally recognized as a contract. Chapter 15 considers at length an important type of contract: the contract to produce something. Chapter 16 is concerned with two other types of contract: the contract for transfer of possession of something that already exists (such as land or a painting), and donative contracts.
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This paper contains a chapter on the general structure of the law from a forthcoming book, Foundations of Economic Analysis of Law (Harvard University Press, 2003). In this chapter, I consider basic features of the legal system, including whether the law directly constrains behavior or channels it by the threat of sanctions, and whether the law is brought into play by private legal action or involves public enforcement. I investigate the conditions under which one or another structure of law will be socially desirable, and I then discuss tort, contract, criminal law, and several other areas of law in the light of the analysis of the optimal structure of the law.
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In Fairness versus Welfare, we advance the thesis that social policies should be assessed entirely on the basis of their effects on individuals’ well‐being. 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 everyone’s well‐being; 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.
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Requirements that parties have assets of at least a minimum level in order to participate in an activity are frequently imposed. A principal rationale for minimum asset requirements is considered in this article - potential injurers have stronger incentives to prevent harm, or not to engage in harmful activities, provided that they have at least the required level of assets at stake if they are sued for causing harm. The optimal minimum asset requirement generally reflects a tradeoff between this advantage and the disadvantage that some parties with assets below a required level ought to engage in the activity (because the benefits they would obtain exceed the expected harm they would cause). Additionally, it is emphasized that minimum asset requirements are socially desirable only when the victims of harm are not customers of firms. When victims of harm are customers of firms, minimum asset requirements are socially undesirable.
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In this article, we ask what system of moral rules would be best from a consequentialist perspective, given certain aspects of human nature. This question is of inherent conceptual interest and is important to explore in order better to understand the moral systems that we observe and to illuminate longstanding debates in moral theory. We make what seem to be plausible assumptions about aspects of human nature and the moral sentiments and then derive conclusions about the optimal consequentialist moral system - concerning which acts should be deemed right and wrong, and to what degree. We suggest that our results have some correspondence with observed moral systems and also help to clarify certain points of disagreement among moral theorists.
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Nonwelfarist principles - notably, deontological principles - are often advanced to guide moral decisions. The types of choices addressed by such principles typically seem, on their face, to involve conflicts of interests among individuals. Nevertheless, it can be demonstrated that any nonwelfarist principle will, in some circumstances, favor choices that make all individuals worse off. For a variety of reasons, this conclusion has important implications for moral theories that are understood to support nonwelfarist principles.
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A. Mitchell Polinsky & Steven Shavell, Punitive Damages: An Economic Perspective, in 13 Litigation Services Handbook: The Role of the Financial Expert (Roman L. Weil, Michael J. Wagner & Peter B. Frank eds., 3d ed. 2002).
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It is evident that both law and morality serve to channel our behavior. Law accomplishes this primarily through the threat of sanctions if we disobey legal rules. Morality too involves incentives: bad acts may result in guilt and disapprobation, and good acts may result in virtuous feelings and praise. These two very different avenues of effect on our actions are examined in this article from an instrumental perspective. The analysis focuses on various social costs associated with law and morality, and on their effectiveness, as determined by the magnitude and likelihood of sanctions and by certain informational factors. After the relative character of law and of morality as means of control of conduct is assessed, consideration is given to their theoretically optimal domains - to where morality alone would appear to be best to control behavior, to where morality and the law would likely be advantageous to employ jointly, and to where solely the law would seem desirable to utilize. The observed pattern of use of morality and of law is discussed, and it is tentatively suggested that the observed and the optimal patterns are in rough alignment with one another.
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The traditional view of economists has been that corrective taxes are superior to direct" regulation of harmful externalities when the state's information about control costs is incomplete. " In recent years, however, many economists seem to have adopted the view that either corrective" taxes or quantity regulation could be superior to the other. One argument for this view with Weitzman (1974), holds only if the state is constrained to use a fixed tax rate (a linear tax" schedule) even when harm is nonlinear. Corrective taxes are indeed superior to quantity" regulation if -- as seems more plausible -- the state can impose a nonlinear tax equal to the" schedule of harm or can adjust the tax rate upon learning that it diverges from marginal harm. " Another argument, associated with Baumol and Oates (1988), is that quantity regulation gains" appeal when the state is uncertain about the harm caused by an externality. In this case however, a corrective tax schedule (equal to the expected harm schedule) is superior to quantity" regulation.
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This paper explores the power of threats in the absence of binding commitment. The threatener cannot commit to carry out the threat if the victim refuses payment, and cannot commit not to carry out the threat if payment is made. An important assumption of the model is that once the threat is carried out it cannot be repeated. If exercising the threat is costly to the threatener, then the threat cannot succeed in extracting money from the victim. If exercising the threat would benefit the threatener, however, then the threat's success depends upon whether the threat may be repeated after a payment is made. In the equilibrium of a finite-period game, the threat is carried out and the victim makes no payments. In an infinite-horizon game, however, it is an equilibrium for the victim to make a stream of payments over time. The expectation of future payments keeps the threatener from exercising the threat.
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We analyze corruption in law enforcement: the payment of bribes to enforcement agents, threats to frame innocent individuals in order to extort money from them, and the actual framing of innocent individuals. Bribery, extortion, and framing reduce deterrence and are thus worth discouraging. Optimal penalties for bribery and framing are maximal, but, surprisingly, extortion should not be sanctioned. The state may also combat corruption by paying rewards to enforcement agents for reporting violations. Such rewards can partially or completely mitigate the problem of bribery, but they encourage framing. The optimal reward may be relatively low to discourage extortion and framing, or relatively high to discourage bribery.
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The public at large, many policymakers, and a number of economists hold views of social welfare that are non‐welfarist. That is, they attach some importance to factors other than the effects of policies on individuals’ utilities. We show, however, that any non‐welfarist method of policy assessment violates the Pareto principle.
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The 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 decision making. 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.
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"This article discusses the theory of the public enforcement of law—the use of public agents (inspectors, tax auditors, police, prosecutors) to detect and to sanction violators of legal rules. We first present the basic elements of the theory, focusing on the probability of imposition of sanctions, the magnitude and form of sanctions, and the rule of liability. We then examine a variety of extensions of the central theory, including accidental harms, costs of imposing fines, mistake, marginal deterrence, settlement, self-reporting, repeat offenses, and incapacitation."
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Most legal academics and policymakers believe that weight should be accorded to conceptions of fairness in evaluating legal policies. In other writings, we have demonstrated that adherence to any notion of fairness will sometimes lead to a conflict with the Pareto principle. That is, to endorse a notion of fairness is to endorse the view that it can be desirable to adopt a legal rule that will reduce the well-being of every person in society. In this comment, we will be arguing that Howard Chang's position in his reply to one of our articles, in which he suggests that it is possible to imagine some notions of fairness under which this conflict does not exist, is tantamount to an abandonment of logical consistency in normative assessment of policy.
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In this article we incorporate notions of the fairness of sanctions into the standard model of public enforcement. When both the probability and magnitude of sanctions may be varied, the usual solution involves a very high sanction and a relatively low probability of enforcement if individuals are risk neutral. When the issue of fairness is added to the analysis, the optimal sanction generally is not extremely high because such a sanction would be seen as unfair. The optimal probability of imposing sanctions may be higher than in the usual case (to offset the lower sanction) or lower than in the usual case (because the lower sanction reduces the effectiveness of enforcement).
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In 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 Sanchirico's 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.
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The sale of liability insurance presents us with a basic question. On one hand, individuals want to purchase liability insurance coverage, suggesting that its ownership is socially good. On the other, the risk against which liability coverage protects its holders is having to pay legally-mandated sanctions. And because the purpose of legal sanctions is in significant part to discourage and to punish unwanted behavior, the fundamental issue arises whether liability insurance might undermine the effect of the law and thus be socially undesirable. This concern led to early resistance against the sale of liability insurance, and reservations about the wisdom of liability insurance are reflected today by certain limitations on the sale of coverage. However, liability insurance is widely held, and without apparently untoward consequences for the functioning of the legal system. My purpose in this paper is to discuss what the economic theory of insurance and of liability law imply about the social desirability, or lack thereof, of liability insurance. I first consider the standard model of accidents and determine there that liability insurance is socially desirable. I then turn to the chief circumstance under which regulation of liability insurance coverage may be justified -- when incentives to reduce risk are inadequate. Inadequate incentives may arise because of judgment-proof problems or the possibility of escape from liability. Regulation of liability coverage may then help to augment diluted incentives to reduce risk. Notably, requirements to purchase coverage may improve incentives when insurers can monitor insured behavior; and the opposite form of regulation, forbidding coverage, may increase incentives when insurers are not able to monitor insured behavior.
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Our thesis is that the assessment of a legal policy should depend exclusively on its effects on human welfare, that is, on the well-being of individuals. In particular, no independent evaluative weight should be accorded to notions of fairness, such as corrective justice in tort and desert in punishment. (Concerns about the distribution of income are not, however, subject to our critique.) When the choice of legal rules is influenced by notions of fairness, individuals are often made worse off. Indeed, if the prescriptions of any notion of fairness are followed, it is always possible that everyone will be made worse off. Moreover, when we examine notions of fairness and the literature that advances them, we are unable to identify reasons that, on reflection, justify giving weight to these notions at the expense of individuals' well-being. Nevertheless, notions of fairness are widely felt to be appealing. We suggest that this appeal can largely be explained by three factors: notions of fairness often correspond to social norms that usefully regulate everyday life; notions of fairness may serve as proxy devices for achieving instrumental objectives; and individuals may have a taste for satisfaction of the notions. However, we explain that none of these factors warrants employing notions of fairness as independent evaluative principles in the assessment of legal policy. We develop these arguments through consideration of specific conceptions of fairness that are employed in major areas of law: tort, contract, legal procedure, and law enforcement. We also discuss the implications of our analysis for our primary audience, legal academics and other legal policy analysts, and also for government officials, notably legislators, regulators, and judges.
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This article surveys the theory of the public enforcement of law--the use of public agents (inspectors, tax auditors, police, prosecutors) to detect and to sanction violators of legal rules. We first present the basic elements of the theory, focusing on the probability of imposition of sanctions, the magnitude and form of sanctions, and the rule of liability. We then examine a variety of extensions of the central theory, concerning accidental harms, costs of imposing fines, errors, general enforcement, marginal deterrence, the principal-agent relationship, settlements, self-reporting, repeat offenders, imperfect knowledge about the probability and magnitude of fines, and incapacitation.
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Most legal academics and policy makers believe that notions of fairness should be accorded positive weight in evaluating legal policies. We explain, however, that ascribing importance to any notion of fairness (other than one concerned solely with the distribution of income) will sometimes lead to a conflict with the Pareto principle. That is, to endorse a notion of fairness is to endorse the view that it can be desirable to adopt a legal rule that will reduce the well-being of every person in society.
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The public at large, many policymakers, and some economists hold views of social welfare that attach some importance to factors other than individuals' utilities. This note shows that any such non-individualistic notion of social welfare conflicts with the Pareto principle.
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What is the socially optimal level of litigation given its expense, and how does it compare to the privately determined level of litigation? The former and the latter levels of legal activity generally differ, and the reasons involve 2 fundamental types of externality. The first is a negative externality: When a party spends on litigation, he does not take into account the litigation costs that he induces others to incur. The 2nd is a positive externality: When a party engages in litigation, he does not take into account the effect that this has on incentives to reduce harm. This paper investigates the standard model of potentially harmful behavior and the liability system, but it allows for the costliness of litigation.
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This is a survey of the field of economic analysis of law, focusing on the work of economists. The survey covers the three central areas of civil law liability for accidents (tort law), property law, and contracts as well as the litigation process and public enforcement of law.
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This article studies the implications for the theory of deterrence of (a) the manner in" which individuals' disutility from imprisonment varies with the length of the imprisonment" term; and (b) discounting of the future disutility and future public costs of imprisonment. Two" questions are addressed: Is deterrence enhanced more by increasing the length of imprisonment" terms or instead by raising the likelihood of imposing imprisonment? What is the optimal" combination of the severity and probability of imprisonment sanctions?"
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This article uses a two-period version of the standard economic model of deterrence to study whether sanctions should depend on an individual’s record of prior convictions—his offense history. The principal contribution of the article is to demonstrate that it may be optimal to treat repeat offenders disadvantageously because such a policy serves to enhance deterrence: When an individual contemplates committing an offense in the first period, he will realize that if he is caught, not only will he bear an immediate sanction, but also—because he will have a record—any sanction that he bears in the second period will be higher than it would be otherwise.
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The private and the social functions of contracts and of contract law are examined in this entry. In section 1, on the basic theory of contracts, the topics considered include contract formation, why contract enforcement is valuable, the incompleteness of contracts, the interpretation of contracts, remedies for breach, renegotiation of contracts, and judicial overriding of contracts. In section 2, the economic literature on production contracts is reviewed, and in section 3 other types of contract are discussed.
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Legal advice is the information that lawyers provide to clients about the nature of legal rules, about the probability and magnitude of sanctions for their violation, and about litigation and legal procedure. The chief questions addressed here are how legal advice helps clients and how, or whether, it advances social welfare. The analysis distinguishes between two major types of legal advice: ex ante advice, obtained when a party is contemplating an action with possible legal consequences; and ex post advice, secured after a party has acted or someone has been harmed, which is to say, at the stage of possible or actual litigation.