This dissertation abstract and reflection commentary present the work of Dr. Andrea Liesen. The dissertation examines the informational efficiency of financial markets to price the systematic risk stemming from climate change for European companies. The abstract provides an overview of the underlying theory, introduces the development of hypotheses, the method applied, and data gathered, as well as selected implications of results. The reflection commentary discusses the author’s views of the research process as a junior scholar.

We develop a framework for assessing security market quality, relating five elements of market design to three metrics of market integrity and two metrics of market efficiency. We empirically implement this integrity–efficiency MQ framework by testing a hypothesis that trade-based ramping manipulation at the close raises execution costs on 24 security markets worldwide. Estimating a simultaneous equations model of ramping incidence, spreads, and the probability of deploying real-time surveillance, we show that quoted bid-ask spreads (...) are positively related to the incidence of MTC across seven liquidity deciles. The magnitude is economically significant; improving market integrity by cutting MTC in half reduces spreads 6–11 %. Allowing direct market access in conjunction with RTS, conducting auctions at the close, and developing regulations that require surveillance, all reduce MTC and thereby lower spreads, assuring better market integrity and enhancing market efficiency. Introducing circuit breakers or prohibiting shorts poses integrity–efficiency tradeoffs. (shrink)

Both fairness and efficiency are important considerations in market design and regulation, yet many regulators have neither defined nor measured these concepts. We develop an evidencebased policy framework in which these are both defined and measured using a series of empirical proxies. We then build a systems estimation model to examine the 2003–2011 explosive growth in algorithmic trading on the London Stock Exchange and NYSE Euronext Paris. Our results show that greater AT is associated with increased transactional (...) class='Hi'>efficiency and reduced information leakage in top quintile stocks. For less liquid stocks, manipulation at the close declines. We also document the tradeoff between reduced spreads and increased manipulation or information leakage following the introduction of MiFID1. (shrink)

Both fairness and efficiency are important considerations in market design and regulation, yet many regulators have neither defined nor measured these concepts. We develop an evidencebased policy framework in which these are both defined and measured using a series of empirical proxies. We then build a systems estimation model to examine the 2003–2011 explosive growth in algorithmic trading on the London Stock Exchange and NYSE Euronext Paris. Our results show that greater AT is associated with increased transactional (...) class='Hi'>efficiency and reduced information leakage in top quintile stocks. For less liquid stocks, manipulation at the close declines. We also document the tradeoff between reduced spreads and increased manipulation or information leakage following the introduction of MiFID1. (shrink)

Workers generally face higher levels of pollution and risk in their workplace than members of the public. Economists justify the double standard on the grounds of the compensating wage differential . The CWD, or hazard-pay premium, is the increment in wages, all things being equal, that workers in hazardous environments receive, as compared to other workers. Economists defend the CWD by asserting that workers willingly trade safety for extra money. This essay examines the theory behind the CWD, presents and evaluates (...) economists' Market-Efficiency Argument for the CWD, offers several reasons for questioning the CWD, and applies the Market-Efficiency Argument to a real-world case, that of U. S. nuclear workers. The essay concludes that this argument fails to justify the CWD, at least in the case of U. S. nuclear workers. (shrink)

The Market Failures Approach (MFA) is one of the leading theories in contemporary business ethics. It generates a list of ethical obligations for the managers of private firms that states that they should not create or exploit market failures because doing so reduces the efficiency of the economy. Recently the MFA has been criticised by Abraham Singer on the basis that it unjustifiably does not assign private managers obligations based on egalitarian values. Singer proposes an extension to (...) the MFA, the Justice Failures Approach (JFA), in which managers have duties to alleviate political, social, and distributive inequalities in addition to having obligations to not exploit market failures. In this paper I describe the MFA and JFA and situate them relative to each other. I then highlight a threefold distinction between different types of obligations that can be given to private managers in order to argue that a hybrid theory of business ethics, which I call the MFA +, can be generated by arguing that managers have obligations based on efficiency and duties based on equality to the extent that these latter obligations do not lead to efficiency losses. This argument suggests a novel theoretical option in business ethics, elucidates the issues that are at stake between the MFA and the JFA, and clarifies the costs and benefits of each theory. (shrink)

: Workers generally face higher levels of pollution and risk in their workplace than members of the public. Economists justify the double standard (for workplace versus public exposures to various pollutants) on the grounds of the compensating wage differential (CWD). The CWD, or hazard-pay premium, is the increment in wages, all things being equal, that workers in hazardous environments receive, as compared to other workers. Economists defend the CWD by asserting that workers willingly trade safety for extra money. This essay (...) (1) examines the theory behind the CWD, (2) presents and evaluates economists' Market-Efficiency Argument for the CWD, (3) offers several reasons for questioning the CWD, and (4) applies the Market-Efficiency Argument to a real-world case, that of U.S. nuclear workers. The essay concludes that this argument fails to justify the CWD, at least in the case of U.S. nuclear workers. (shrink)

This is a systematic evaluation of the main arguments for and against the market as an instrument of social organization, balancing efficiency and justice. It links the distinctive approaches of philosophy and economics to this evaluation.

The U.S. stock market is one of the largest and most complex marketplaces in the global financial system. Over the past several decades, this market has evolved at multiple structural and temporal scales. New exchanges became active, and others stopped trading, regulations have been introduced and adapted, and technological innovations have pushed the pace of trading activity to blistering speeds. These developments have supported the growth of a rich machine-trading ecology that leads to qualitative differences in trading behavior (...) at human and machine time scales. We conduct a longitudinal analysis of comprehensive market data to quantify nonstationary dynamics throughout this system. We quantify the relationship between fluctuations in the number of active trading venues and realized opportunity costs experienced by market participants. We find that information asymmetries, in the form of quote dislocations, predict market-wide volatility indicators. Lastly, we uncover multiple micro-to-macro level pathways, including those exhibiting evidence of self-organized criticality. (shrink)

Efficient markets are alienating if they inhibit us from recognizably caring about one another in our productive activities. I argue that efficient market behaviour is both exclusionary and fetishistic. As exclusionary, the efficient marketeer cannot manifest care alongside their market behaviour. As fetishistic, the efficient marketeer cannot manifest care in their market behaviour. The conjunction entails that efficient market behavior inhibits care. It doesn’t follow that efficient market behavior is vicious: individuals might justifiably commit to (...) efficiency because doing so serves the common good. But efficient market systems nevertheless have significant opportunity costs. The discussion yields a range of desiderata for non-alienated economic organization. (shrink)

Hayek and the Efficient Market Hypothesis are often seen as proposing a similar theory of prices. Hayek is seen as proposing to understand prices as information conveyer, incorporating inform...

Does the level of marketing activity in a country contribute to societal well-being or quality of life? Does economic efficiency also play a positive role in societal well-being? Does economic efficiency also moderate or mediate the marketing activity effect on societal well-being? Marketing activity refers to the pervasiveness of promotion expenditures and number of retail outlets per capita in a country. Economic efficiency refers to the extent to which the economy is unhampered by corruption, burdensome government regulation, (...) and a large informal economy. We used secondary data from the World Bank and other statistical sources to answer these questions. Our study findings suggest that both marketing activity and economic efficiency contribute positively to societal well-being, and that economic efficiency plays more of a mediator than moderator role between marketing activity and societal well-being. The public policy implication of this study is that increases in marketing activity and economic efficiency in countries characterized as low on both dimensions should significantly increase the quality of life in those countries. (shrink)

There has been considerable debate over regulated organ markets. Especially current markets, where people sell one of their kidneys while still alive, have received increased attention. Futures markets remain an interesting and under-discussed alternative specification of a market-based solution to the organ shortage. Futures markets pertain to the sale of the right to procure people’s organs after they die. There is a wide range of possible specifications of the futures market. There are, however, some major unaddressed efficiency (...) concerns. This article presents this class of concerns and discusses the implication for organ futures markets. It identifies a number of inefficiency sources pertaining to crowding out, bad organs, costs and missed opportunities, family refusals, moral hazard and strength of the provided incentive. However, a complete assessment of futures market requires better knowledge regarding the potential reaction from donors, families and health professionals. (shrink)

This book presents startling evidence that state monopolies can produce better outcomes than the free market. It provides an empirical comparison of the property insurance market in five European countries: Britain, Spain, France, Switzerland, and Germany. The market and cost structures of insurers in each country are described, and particular features of each market and the outcomes for customers examined. The regulatory frameworks vary widely from country to country and so do the market outcomes, both (...) in terms of premium level and in terms of available insurance cover.In view of the increase in major floods and other forms of natural damage over the last decades, the non-availability of insurance cover in many competitive insurance systems is likely to become a major political issue. This book shows that state monopoly is an adequate policy response. Competitive insurance systems are shown to provide incomplete cover at a substantially higher cost. In mixed systems, where the private sector can obtain reinsurance from the state the state tends to end up paying most of the costs while the private insurance companies keep most of the premium income.The book will be of interest to academic economists interested in privatization, regulation, the theory of the firm, and insurance; Policy-makers concerned with regulation and privatization; Insurance companies, regulators, and analysts. (shrink)

Due to the shortage of organs, it has been proposed that the ban on organ sales is lifted and a market-based procurement system introduced. This paper assesses four prominent proposals for how such a market could be arranged: unregulated current market, regulated current market, payment-for-consent futures market, and the family-reward futures market. These are assessed in terms of how applicable prominent concerns with organ sales are for each model. The concerns evaluated are that organ (...) markets will crowd out altruistic donation, that consent to sell organs is invalid, that sellers will be harmed, and that commodification of organs will affect human relationships in a negative way. The paper concludes that the family-reward futures market fares best in this comparison but also that it provides the weakest incentive to potential buyers. There is an inverse relationship between how applicable prominent critiques are to organ market models and the increase in available organs they can be expected to provide. (shrink)

In The Political Limits of Environmental Regulation: Tracking the Unicorn, Bruce Yandle identifies some of the key weaknesses of federal environmental regulation, including its regressive effects, its tendency to better serve selected political interests than the cause of environmental protection, and the EPA's failure to follow sensible priorities. Additional problems may also be cited, including the tendency to exclude citizens? voices from deliberations regarding the degree of pollution control. But Yandle's conclusion regarding the likely superiority of decentralized and market?sensitive (...) alternatives to centralized regulation is overstated. Any such alternatives necessarily will continue to be grounded in relatively uniform national standards. Moreover, in the context of American political economy, market?based controls would continue to deny many citizens real voice and choice. The quest continues to be for the combination of controls that best preserves both the environment and liberty. (shrink)

Článok reflektuje historický vývoj skúmania hypotézy efektívnych trhov s vybranými stanoviskami metodológie vedy. Z vedeckého skúmania finančných trhov sa zdá, že aj napriek zdanlivým paradigmatickým prechodom medzi jednotlivými hypotézami o efektivite trhov sa úroveň vedeckého poznania menila kontinuálne, predovšetkým kvôli postupnej aplikácii nových analytických inštrumentov a nových metód testovania. Protichodné vedecké teórie vznikali a boli testované súbežne, rozdiel medzi ich prijatím a zamietnutím spočíval na sile empirických dôkazov poskytnutých v danom časovom období. Vývoj skúmaných teórií s postupne robustnejším metodickým rámcom (...) tak verne pripomína Toulminov evolučný model, pričom metodologické postoje Kuhna a Feyerabenda sa javia ako neuspokojivé. (shrink)

This article reviews and criticizes Joseph Heath’s market failures approach (MFA) to business ethics. Our criticism is organized into three sections. First, we argue that, even under the ideal assumptions of perfect competition, when markets generate Pareto-efficient distributions, Heath’s approach does not rule out significant harms. Second, we show that, under nonideal conditions, the MFA is either too demanding, if efficiency is to be attained, or not sufficiently demanding, if the goal of Pareto efficiency is abandoned. Finally, (...) we argue that Heath’s appeal to regulations and specific moral requirements as a remedy for market failures is unlikely to safeguard efficiency and exposes a number of general worries regarding the moral force of the MFA. We end this article with a constructive suggestion on how to adjust the MFA to avoid these problems while preserving its contractualist and Paretian spirit. (shrink)

Marketing Ethics addresses head-on the ethical questions, misunderstandings and challenges that marketing raises while defining marketing as a moral activity. A substantial introduction to the ethics of marketing, exploring the integral relations of marketing and morality Identifies and discusses a series of ethical tools and the marketing framework they constitute that are required for moral marketing Considers broader meanings and background assumptions of marketing infrequently included in other marketing literature Adds direction and meaning to problems in marketing ethics through reflection (...) on concepts such as individual choice, freedom and responsibility, desire satisfaction, noncoercive exchanges, and instrumental efficiency. (shrink)

Moriarty argues that the Market Failures Approach to business ethics is inapplicable to “real world” problems, because it treats “market failure” as a failure to achieve Pareto efficiency. Depending upon how it is applied, Pareto efficiency is either trivially easy to satisfy or else so demanding that no real-world market could ever satisfy it. In this Commentary, I argue that Moriarty overstates these difficulties. The regulatory structure governing markets is best understood as an attempt to (...) maximize the number of Pareto-improving exchanges that occur. There is no reason to think business self-regulation cannot be guided by the same normative-conceptual framework. (shrink)

The objective of our study is to capture the roles of product quality and network effects in the success and efficiency of network markets under strategic settings that defined in terms of market share as a strategic factor and profit as a financial indicator. The research paper shows that the efficiency of network markets depends heavily on the phase adjustment of competition models and the balance of network effects and product quality among enterprises. the network market (...) is always efficient in price competition, but not true in quantity competition when the network effect difference is sufficiently large or/and the quality difference is relatively small, then network effects may play a perverse role in market efficiency. The main findings reveal that network effects do not always enhance the role of quality in market efficiency and market growth. The research outcomes point to high quality enterprises’ attitude toward compatibility with enterprises with large network effects. This research paper also offers insights on government intervention to correct the distorted impacts of sufficiently large network effects on the efficiency of network markets. (shrink)

The market failures approach is amongst the most influential theories of business ethics. Its interest within the field is, in large part, a result of its rejection of moralism and any sort of applied ethics approach, favouring, in contrast, a focus on the institutionally embodied goal of economic activity, which it takes to be that of Pareto efficiency. From this articulation of the goal, or purpose, of markets, a set of efficiency imperatives are derived that are taken (...) to comprise the implicit morality of the market. However, the market failures approach has not adequately explained the basis of market actors’ moral motivation, that is, the reasons individuals have to self-consciously adhere to moral norms governing market transactions. This failure, I argue, stems from its misspecification of the purpose of the market. After explaining this failure to address the problem of moral motivation, I argue that a distinctive mode of freedom understood as a form of self-authorship is better seen as the purpose of the market, a goal that actually animates individual market participants. I then argue that this notion of freedom is intrinsically linked to a conception of responsibility and that this notion of responsibility can be more adequately conceptualized as involving a set of market virtues focused on promoting mutually beneficial transactions. Thus, the link between freedom and responsibility, stemming from an individual’s need to legitimize their freedom in a market context, provides the basis for a self-conscious sense of moral motivation. As such, this approach better captures the implicit morality of the market while also addressing the problem of moral motivation. (shrink)

Politics, Philosophy & Economics, Volume 21, Issue 2, Page 165-189, May 2022. It is generally acknowledged that a certain amount of state intervention in health and health care is needed to address the significant market failures in these sectors; however, it is also thought that the primary rationale for state involvement in health must lie elsewhere, for example in an egalitarian commitment to equalizing access to health care for all citizens. This paper argues that a complete theory of justice (...) in health can be derived from a commitment to correcting market failure, or in other words promoting Pareto-efficiency, in the domain of health. This approach can address familiar problems around access to care, as well as problems related to resource allocation and rationing, the control of health care costs, and the foundations of public health. Egalitarian theories of justice in health cannot make sense of the depth and pervasiveness of state involvement in health and health care; only a theory rooted in the need to correct market failure can. (shrink)

Efficiency requires legislative political institutions. There are many ways efficiency can be promoted, and so an ongoing legislative institution is necessary to resolve this choice in a politically sustainable and economically flexible way. This poses serious problems for classical liberal proposals to constitutionally protect markets from government intervention, as seen in the work of Ilya Somin, Guido Pincione & Fernando Tesón and others. The argument for the political nature of efficiency is set out in terms of both (...) Pareto optimality and aggregate welfare maximisation, and similar arguments can be generalised to other social values. (shrink)

There has been a remarkable shift in the relation between market and state responsibilities for public services like health care and education. While these services continue to be financed publicly, they are now often provided through the market. The main argument for this new institutional division of labor is economic: while (public) ends stay the same, (private) means are more efficient. Markets function as ‘mere means’ under the continued responsibility of the state. This paper investigates and rejects currently (...) existing egalitarian liberal theories about this division of labor and it presents and defends a new theory of marketization, in which social rights and democratic decision-making occupy center-stage. (shrink)

How can we allocate scarce health care resources justly? In particular, are markets the most efficient way to deliver health services? Much blood, sweat and ink has been shed over this issue, but rarely has either faction challenged the unspoken assumption behind the claim made by advocates of markets: that efficiency advances the interests of both individuals and society. Whether markets actually do increase efficiency is arguably a matter for economists, but the deeper ethical question is whether (...) class='Hi'>efficiency is the correct criterion, in terms of social justice and individual needs. (shrink)

One common justification for the pursuit of profit by business firms within a market economy is that profit is not an end in itself but a means to more efficiently produce and allocate resources. Profit, in short, is a mechanism that serves the market’s purpose of producing Pareto superior outcomes for society. This discussion examines whether such a justification, if correct, requires business managers to remain attentive to how their firm’s operation impacts the market’s purpose. In particular, (...) it is argued that the value of efficiency, despite views to the contrary, cannot be fully separated from the planning and intentions of business managers as long as those managers direct their firms in an ethically responsible fashion. This position is inspired by, and serves as a supportive clarification of Joseph Heath’s so-called “market failures approach” to business ethics. (shrink)

How much inequality does market interaction generate? The answer to this question partly depends on the level of competition among economic agents. Yet, in their normative analysis of the market, theories of distributive justice focus on individual characteristics such as talents as determinants of income, and tend to ignore structural features such as competition. Economists, on the other hand, dispose of the conceptual tools to assess the distributive impact of competition, but their analysis is usually limited to allocative (...) efficiency. Part I of the article distinguishes my argument from conventional perspectives on income inequality and redistribution. Whereas the latter propose either to redistribute income once the market interaction has taken place or to adjust the initial holdings of market participants, I focus on the distributive impact of the institutional structure of the market itself. Part II outlines the ways in which various forms of competition affect distribution. My objective here is descriptive in nature, but shows that a normative evaluation of the market has to take seriously the distributive impact of competition. This impact can be broken down into the analysis of three overlapping groups of economic agents, namely consumers, workers, and capital owners. Consumers potentially gain from competition in the form of lower prices, but these gains are only realized if competition does not put pressure on their work income at the same time. Unless competition squeezes profits unusually hard, capital owners tend to benefit from competition. (shrink)

The efficient markets hypothesis has been the central proposition in finance for nearly thirty years. It states that securities prices in financial markets must equal fundamental values, either because all investors are rational or because arbitrage eliminates pricing anomalies. This book describes an alternative approach to the study of financial markets: behavioral finance. This approach starts with an observation that the assumptions of investor rationality and perfect arbitrage are overwhelmingly contradicted by both psychological and institutional evidence. In actual financial markets, (...) less than fully rational investors trade against arbitrageurs whose resources are limited by risk aversion, short horizons, and agency problems. The book presents and empirically evaluates models of such inefficient markets. Behavioral finance models both explain the available financial data better than does the efficient markets hypothesis and generate new empirical predictions. These models can account for such anomalies as the superior performance of value stocks, the closed end fund puzzle, the high returns on stocks included in market indices, the persistence of stock price bubbles, and even the collapse of several well-known hedge funds in 1998. By summarizing and expanding the research in behavioral finance, the book builds a new theoretical and empirical foundation for the economic analysis of real-world markets. (shrink)

Can market socialism realize the socialist vision of the good society by ending exploitation and alienation, substantially reducing inequalities of wealth and income, ensuring full employment, and correcting other market irrationalities? A comparative analysis of the organizational forms of capitalism (notably the small owner?operated firm and the large corporation) and market socialism (the self?managed cooperative that rents its capital from the state) reveals the relative efficiencies of capitalism in reducing transaction costs, in turn reducing the opportunities for (...) exploitation. By contrast, the transaction cost inefficiencies of the organizations of market socialism permit and encourage forms of exploitation that are precluded or discouraged under capitalism. (shrink)

The efficient markets hypothesis has been the central proposition in finance for nearly thirty years. It states that securities prices in financial markets must equal fundamental values, either because all investors are rational or because arbitrage eliminates pricing anomalies. This book describes an alternative approach to the study of financial markets: behavioral finance. This approach starts with an observation that the assumptions of investor rationality and perfect arbitrage are overwhelmingly contradicted by both psychological and institutional evidence. In actual financial markets, (...) less than fully rational investors trade against arbitrageurs whose resources are limited by risk aversion, short horizons, and agency problems. The book presents and empirically evaluates models of such inefficient markets. Behavioral finance models both explain the available financial data better than does the efficient markets hypothesis and generate new empirical predictions. These models can account for such anomalies as the superior performance of value stocks, the closed end fund puzzle, the high returns on stocks included in market indices, the persistence of stock price bubbles, and even the collapse of several well-known hedge funds in 1998. By summarizing and expanding the research in behavioral finance, the book builds a new theoretical and empirical foundation for the economic analysis of real-world markets. (shrink)

Libertarians favor a free market for intrinsic reasons: it embodies liberty, accountability, consent, cooperation, and other virtues. Additionally, if property rights against trespasses such as pollution are enforced and if public lands are transferred as private property to environmental groups, a free market may also protect the environment. In contrast, Terry Anderson and Donald Leal's Free Market Environmentalism favors a free market solely on instrumental grounds: markets allocate resources efficiently. The authors apparently follow cost‐benefit planners in (...) endorsing a specious tautology that “defends” allocative efficiency by defining “social welfare” in terms of it. They make no attempt to show that allocative efficiency is a good thing or that it is consistent with environmental protection. By regarding pollution as a compensable external cost rather than as an enjoinable nuisance and by arguing that the government should auction rather than give public lands to environmental groups, moreover, Anderson and Leal offer far less protection of the environment than libertarians do. (shrink)

The Market Economy: A Reader outlines the characteristics and philosophical underpinnings of the market economy and its usefulness in the allocation of resources. This anthology offers a comprehensive set of authentic, primary source selections that demonstrate how the tenets of classical economic liberalism provide the foundation for an efficient economic system--while also maximizing individual freedom. The readings also provide a structure for analyzing economic and philosophical issues. The book includes selections from several authors who are not economists but (...) whose work is important in terms of their contribution to economic thought, such as Henry David Throeau and Ayn Rand. It also features classic readings such as Adam Smith's invisible hand from his Wealth of Nations, David Ricardo's original explanation of comparative advantage from Principles of Political Economy and Taxation, and John Stuart Mill's eloquent expression of the limits of government in On Liberty. Latter day proponents of private enterprise include Friedrich Hayek, Ludwig von Mises, and Milton Friedman. These authors and others address how the market economy responds to such topical issues as the environment, income distribution, and free trade. (shrink)

This study explores cultural influence on corporate behavior employing the case of merchant guild culture in China and further the moderating role of Marketization. Using hand-collected data on merchant guild culture, we find that merchant guild culture is significantly negatively associated with owner-manager agency costs, suggesting that merchant guild culture in ancient China still has its continuous and remarkable effects on managerial behavior in contemporary corporations. This finding also implies that merchant guild culture motivates managers to upgrade the efficiency (...) of controlling operating costs, reduces agency conflicts between management and shareholders, and eventually mitigates owner-manager agency costs. Moreover, provincial Marketization level attenuates the negative association between merchant guild culture and owner-manager agency costs. Above results are robust to a variety of alternative measures of merchant guild culture and owner-manager agency costs. Furthermore, our findings are still valid after controlling for the potential endogeneity between merchant guild culture and owner-manager agency costs. (shrink)

As the rapidly advancing possibilities of biotechnology have outstripped the adaptive capacity of current legal and ethical institutions, a vigorous debate has arisen that considers the boundaries of appropriate use of this technology, particularly when applied to humans. This article examines ethical concerns surrounding the development of markets in a particular form of human genetic engineering in which heterozygotes are fitter than both homozygotes, a condition known as heterozygous advantage. To begin, we present a generalized model of the condition, illuminated (...) by the application to sickle-cell anemia. Next, we propose a typology of related markets, some of which are currently functioning with available products and services, and others that are widely viewed as imminent. We suggest the manner in which perverse incentives may arise for firms that market genetic intervention in circumstances where heterozygous advantage is possible. Finally, we propose that this misalignment of incentives with social welfare has arisen from both ill-conceived market intervention where markets are capable of achieving efficient outcomes and the lack of market intervention where markets have failed. We offer specific legal and regulatory approaches for reform. (shrink)