201-213 of 213 Results

Article

A recent body of literature on quantitative general equilibrium models links the creation and diffusion of knowledge and technology to openness to international trade and to the activity of multinational firms. The unifying theme of this literature is methodological: productivities are Fréchet random variables and arise from Poisson innovation and diffusion processes for ideas. The main advantage of this modeling strategy is that it delivers closed-form solutions for key endogenous variables that have a direct counterpart in the data (e.g., prices, trade flows). This tractability makes the connection between theory and data transparent, helps clarify the determinants of the gains from openness, and facilitates the calculation of counterfactual equilibria.

Article

The key question for the economics of international migration is whether observed real wage differentials across countries for workers with identical intrinsic productivity represent an economic inefficiency sustained by legal barriers to labor mobility between geographies. A simple comparison of the real wages of workers with the same level of formal schooling or performing similar occupations across countries shows massive gaps between rich and poorer countries. These gaps persist after adjusting for observed and unobserved human capital characteristics, suggesting a “place premium”—or space-specific wage differentials that are not due to intrinsic worker productivity but rather are due to a misallocation of labor. If wage gaps are not due to intrinsic worker productivity, then the incentive for workers to move to richer countries is high. The idea of a place premium is corroborated by macroeconomic evidence. National accounts data show large cross-country output per worker differences, driven by the divergence of total factor productivity. The lack of convergence in total factor productivity and corresponding spatial productivity differentials create differences in the marginal product of factors, and hence persistent gaps in the wages of equal productivity workers. These differentials can equalize with factor flows; however their persistence and large magnitude in the case of labor, suggest legal barriers to migration restricting labor flows are in fact constraining significant return on human capital, and leaving billions in unrealized gains to the world’s workers and global economy. A relaxation of these barriers would generate worker welfare gains that dwarf gold-standard poverty reduction programs.

Article

Used for hundreds of years and adapted to a variety of contexts, arbitration is a form of adjudicative dispute settlement where parties consent to selecting third-party neutrals that resolve a specific dispute by applying the applicable law to the facts. Part of arbitration’s success involves its flexibility in adapting procedures and selecting applicable law to meet parties’ unique needs, including having some control over the appointment of an arbitrator who may have unique substantive expertise. Parties may agree to arbitration hoping to avoid the time-consuming, expensive, and complex process of litigation by streamlining or tailoring dispute mechanics. Yet, it is not empirically verifiable that arbitration always saves time and costs, as assessing relative savings requires comparison to a national court and there are over 190 national judiciaries to which arbitration could be compared, as well as nonadjudicative forms of dispute resolution like direct negotiation and mediation. As parties inevitably negotiate in the “shadow of the law,” arbitration aids the assessment of conflict management options; and, particularly internationally, arbitration remains a powerful tool that incentivizes voluntary compliance with awards and streamlines enforcement. Despite the availability of many types of arbitration with different policy considerations, the parties’ consent to it and their agreement to arbitrate (including the applicable law) is the backbone of this form of dispute settlement. Arbitration agreements require parties to make core choices, such as deciding on the scope of agreements submitted to arbitration, the legal place of arbitration, and applicable rules. Such an agreement then provides the framework for fundamental elements of the proceedings, namely, the basis of the tribunal’s jurisdiction and power over the dispute, the standards for appointing arbitrators, the structure and rules of the proceedings, and the content and form of derivative awards. Having a valid arbitration agreement (and an arbitration proceeding conducted in accordance with those legal obligations) also influences whether courts at the place of arbitration will set the award aside and whether courts at a place of enforcement will recognize and enforce an arbitration award. In the modern era, arbitration will continue evolving to address concerns about local policy considerations (particularly in national arbitration), confidentiality and ethics, technology and cybersecurity, diversity and inclusion, and to ensure arbitration is an ongoing value proposition.

Article

Italy played a central role in the Euro-Mediterranean economy during Antiquity, the late Middle Ages, and the Renaissance. Until the end of the 16th century, the Italian economy was relatively advanced compared with those of the Western European and Mediterranean countries. From the 17th century until the end of the 19th, GDP rose as the population increased. Yet per capita income slowly diminished together with real wages, urbanization, and living standards. Italy lost its central position in the Euro-Mediterranean world and, until the end of the 19th century, was a relatively backward area on the periphery of the most dynamic countries in the north and center of Europe. The Italian premodern economy represents a classic example of extensive growth or GDP growth without improvement in per capita income and living standards.

Article

Law and economics has proved a particularly fruitful scholarly approach in the field of mergers and acquisitions. A huge law and economics literature has developed, providing critical insights into merger activity in general and the proper role of corporate and securities law in regulating this activity. Early economic research examined the motivations for merger activity and the antitrust implications of mergers. Later scholarship elucidated the important disciplining effects on management from merger activity and the market for corporate control. If management performs poorly, causing a firm to become undervalued relative to a well-managed firm, the firm becomes vulnerable to a takeover where management will be replaced. This prospect provides a powerful incentive for management to perform well. More recent work has revealed the limitations of market discipline on management actions in the merger context, and the corresponding role of corporate law in protecting stockholders. Because a merger is generally the final interaction between management and the other stakeholders in a firm, the typical constraints and mechanisms of accountability that otherwise constrain managerial opportunism may be rendered ineffective. This work has played a central role in informing modern jurisprudence. It has shaped the application of enhanced judicial scrutiny of management actions in the merger context, as embodied in the landmark Delaware cases Unocal and Revlon. The law and economics literature has also made important contribution to more recent developments in stockholder appraisal. The law and economics tradition has also provided a useful framework for evaluating the dynamics of merger litigation, including stockholder appraisal, and the extent to which such litigation can be made to serve a useful role in corporate governance.

Article

The Ottoman Empire stood at the crossroads of intercontinental trade for six centuries until World War I. For most of its existence, the economic institutions and policies of this agrarian empire were shaped according to the distribution of political power, cooperation, conflicts, and struggles between the state elites and the various other elites, including those in the provinces. The central bureaucracy managed to contain the many challenges it faced with its pragmatism and habit of negotiation to co-opt and incorporate into the state the social groups that rebelled against it. As long as the activities of the economic elites, landowners, merchants, the leading artisans, and the moneylenders contributed to the perpetuation of this social order, the state encouraged and supported them but did not welcome their rapid enrichment. The influence of these elites over economic matters, and more generally over the policies of the central government, remained limited. Cooperation and coordination among the provincial elites was also made more difficult by the fact that the empire covered a large geographical area, and the different ethnic groups and their elites did not always act together. Differences in government policies and the institutional environment between Western Europe and the Middle East remained limited until the early modern era. With the rise of the Atlantic trade, however, the merchants in northwestern European countries increased their economic and political power substantially. They were then able to induce their governments to defend and develop their commercial interests in the Middle East more forcefully. As they began to lag behind the European merchants even in their own region, it became even more difficult for the Ottoman merchants to provide input into their government’s trade policies or change the commercial or economic institutions in the direction they preferred. Key economic institutions of the traditional Ottoman order, such as state ownership of land, urban guilds, and selective interventionism, remained mostly intact until 1820. In the early part of the 19th century, the center, supported by the new technologies, embarked on an ambitious reform program and was able to reassert its power over the provinces. Centralization and reforms were accompanied by the opening of the economy to international trade and investment. Economic policies and institutional changes in the Ottoman Empire began to reflect the growing power of European states and companies during the 19th century.

Article

Thomas J. Kniesner and W. Kip Viscusi

The value of a statistical life (VSL) is the local tradeoff rate between fatality risk and money. When the tradeoff values are derived from choices in market contexts the VSL serves as both a measure of the population’s willingness to pay for risk reduction and the marginal cost of enhancing safety. Given its fundamental economic role, policy analysts have adopted the VSL as the economically correct measure of the benefit individuals receive from enhancements to their health and safety. Estimates of the VSL for the United States are around $10 million ($2017), and estimates for other countries are generally lower given the positive income elasticity of the VSL. Because of the prominence of mortality risk reductions as the justification for government policies the VSL is a crucial component of the benefit-cost analyses that are part of the regulatory process in the United States and other countries. The VSL is also foundationally related to the concepts of value of a statistical life year (VSLY) and value of a statistical injury (VSI), which also permeate the labor and health economics literatures. Thus, the same types of valuation approaches can be used to monetize non-fatal injuries and mortality risks that pose very small effects on life expectancy. In addition to formalizing the concept and measurement of the VSL and presenting representative estimates for the United States and other countries our Encyclopedia selection addresses the most important questions concerning the nuances that are of interest to researchers and policymakers.

Article

High-dimensional dynamic factor models have their origin in macroeconomics, more specifically in empirical research on business cycles. The central idea, going back to the work of Burns and Mitchell in the 1940s, is that the fluctuations of all the macro and sectoral variables in the economy are driven by a “reference cycle,” that is, a one-dimensional latent cause of variation. After a fairly long process of generalization and formalization, the literature settled at the beginning of the 2000s on a model in which (a) both n, the number of variables in the data set, and T, the number of observations for each variable, may be large; (b) all the variables in the data set depend dynamically on a fixed, independent of n, number of common shocks, plus variable-specific, usually called idiosyncratic, components. The structure of the model can be exemplified as follows: (*) x i t = α i u t + β i u t − 1 + ξ i t , i = 1 , … , n , t = 1 , … , T , where the observable variables x i t are driven by the white noise u t , which is common to all the variables, the common shock, and by the idiosyncratic component ξ i t . The common shock u t is orthogonal to the idiosyncratic components ξ i t , the idiosyncratic components are mutually orthogonal (or weakly correlated). Last, the variations of the common shock u t affect the variable x i t dynamically, that is, through the lag polynomial α i + β i L . Asymptotic results for high-dimensional factor models, consistency of estimators of the common shocks in particular, are obtained for both n and T tending to infinity. The time-domain approach to these factor models is based on the transformation of dynamic equations into static representations. For example, equation ( ∗ ) becomes x i t = α i F 1 t + β i F 2 t + ξ i t , F 1 t = u t , F 2 t = u t − 1 . Instead of the dynamic equation ( ∗ ) there is now a static equation, while instead of the white noise u t there are now two factors, also called static factors, which are dynamically linked: F 1 t = u t , F 2 t = F 1, t − 1 . This transformation into a static representation, whose general form is x i t = λ i 1 F 1 t + ⋯ + λ i r F r t + ξ i t , is extremely convenient for estimation and forecasting of high-dimensional dynamic factor models. In particular, the factors F j t and the loadings λ i j can be consistently estimated from the principal components of the observable variables x i t . Assumption allowing consistent estimation of the factors and loadings are discussed in detail. Moreover, it is argued that in general the vector of the factors is singular; that is, it is driven by a number of shocks smaller than its dimension. This fact has very important consequences. In particular, singularity implies that the fundamentalness problem, which is hard to solve in structural vector autoregressive (VAR) analysis of macroeconomic aggregates, disappears when the latter are studied as part of a high-dimensional dynamic factor model.

Article

Marjon van der Pol and Alastair Irvine

The interest in eliciting time preferences for health has increased rapidly since the early 1990s. It has two main sources: a concern over the appropriate methods for taking timing into account in economics evaluations, and a desire to obtain a better understanding of individual health and healthcare behaviors. The literature on empirical time preferences for health has developed innovative elicitation methods in response to specific challenges that are due to the special nature of health. The health domain has also shown a willingness to explore a wider range of underlying models compared to the monetary domain. Consideration of time preferences for health raises a number of questions. Are time preferences for health similar to those for money? What are the additional challenges when measuring time preferences for health? How do individuals in time preference for health experiments make decisions? Is it possible or necessary to incentivize time preference for health experiments?

Article

Mostafa Beshkar and Eric Bond

International trade agreements have played a significant role in the reduction of trade barriers that has taken place since the end of World War II. One objective of the theoretical literature on trade agreements is to address the question of why bilateral and multilateral trade agreements, rather than simple unilateral actions by individual countries, have been required to reduce trade barriers. The predominant explanation has been the terms of trade theory, which argues that unilateral tariff policies lead to a prisoner’s dilemma due to the negative effect of a country’s tariffs on its trading partners. Reciprocal tariff reductions through a trade agreement are required to obtain tariff reductions that improve on the noncooperative equilibrium. An alternative explanation, the commitment theory of trade agreements, focuses on the use of external enforcement under a trade agreement to discipline domestic politics. A second objective of the theoretical literature has been to understand the design of trade agreements. Insights from contract theory are used to study various flexibility mechanisms that are embodied in trade agreements. These mechanisms include contingent protection measures such as safeguards and antidumping, and unilateral flexibility through tariff overhang. The literature also addresses the enforcement of agreements in the absence of an external enforcement mechanism. The theories of the dispute settlement process of the WTO portray it as an institution with an informational role that facilitates the coordination among parties with incomplete information about the states of the world and the nature of the actions taken by each signatory. Finally, the literature examines whether the ability to form preferential trade agreements serves as a stumbling block or a building block to multilateral liberalization.

Article

Urban sprawl in popular sources is vaguely defined and largely misunderstood, having acquired a pejorative meaning. Economists should ask whether particular patterns of urban land use are an outcome of an efficient allocation of resources. Theoretical economic modeling has been used to show that more not less, sprawl often improves economic efficiency. More sprawl can cause a reduction in traffic congestion. Job suburbanization can generally increase sprawl but improves economic efficiency. Limiting sprawl in some cities by direct control of the land use can increase sprawl in other cities, and aggregate sprawl in all cities combined can increase. That urban population growth causes more urban sprawl is verified by empirically implemented general equilibrium models, but—contrary to common belief—the increase in travel times that accompanies such sprawl are very modest. Urban growth boundaries to limit urban sprawl cause large deadweight losses by raising land prices and should be seen to be socially intolerable but often are not. It is good policy to use corrective taxation for negative externalities such as traffic congestion and to implement property tax reforms to reduce or eliminate distortive taxation. Under various circumstances such fiscal measures improve welfare by increasing urban sprawl. The flight of the rich from American central cities, large lot zoning in the suburbs, and the financing of schools by property tax revenues are seen as causes of sprawl. There is also evidence that more heterogeneity among consumers and more unequal income distributions cause more urban sprawl. The connections between agglomeration economies and urban sprawl are less clear. The emerging technology of autonomous vehicles can have major implications for the future of urban spatial structure and is likely to add to sprawl.

Article

Henrik Andersson, Arne Risa Hole, and Mikael Svensson

Many public policies and individual actions have consequences for population health. To understand whether a (costly) policy undertaken to improve population health is a wise use of resources, analysts can use economic evaluation methods to assess the costs and benefits. To do this, it is necessary to evaluate the costs and benefits using the same metric, and for convenience, a monetary measure is commonly used. It is well established that money measures of a reduction in health risks can be theoretically derived using the willingness-to-pay concept. However, because a market price for health risks is not available, analysts have to rely on analytical techniques to estimate the willingness to pay using revealed- or stated-preference methods. Revealed-preference methods infer willingness to pay based on individuals’ actual behavior in markets related to health risks, and they include such approaches as hedonic pricing techniques. Stated-preference methods use a hypothetical market scenario in which respondents make trade-offs between wealth and health risks. Using, for example, a random utility framework, it is possible to directly estimate individuals’ willingness to pay by analyzing the trade-offs they make in the hypothetical scenario. Stated-preference methods are commonly applied using contingent valuation or discrete choice experiment techniques. Despite criticism and the shortcomings of both the revealed- and stated-preference methods, substantial progress has been made since the 1990s in using both approaches to estimate the willingness to pay for health-risk reductions.

Article

Marisa Miraldo, Katharina Hauck, Antoine Vernet, and Ana Wheelock

Major medical innovations have greatly increased the efficacy of treatments, improved patient outcomes, and often reduced the cost of medical care. However, innovations do not diffuse uniformly across and within health systems. Due to the high complexity of medical treatment decisions, variations in clinical practice are inherent to healthcare delivery, regardless of technological advances, new ways of working, funding, and burden of disease. In this article we conduct a narrative literature review to identify and discuss peer-reviewed articles presenting a theoretical framework or empirical evidence of the factors associated with the adoption of innovation and clinical practice. We find that variation in innovation adoption and medical practice is associated with multiple factors. First, patients’ characteristics, including medical needs and genetic factors, can crucially affect clinical outcomes and the efficacy of treatments. Moreover, differences in patients’ preferences can be an important source of variation. Medical treatments may need to take such patient characteristics into account if they are to deliver optimal outcomes, and consequently, resulting practice variations should be considered warranted and in the best interests of patients. However, socioeconomic or demographic characteristics, such as ethnicity, income, or gender are often not considered legitimate grounds for differential treatment. Second, physician characteristics—such as socioeconomic profile, training, and work-related characteristics—are equally an influential component of practice variation. In particular, so-called “practice style” and physicians’ attitudes toward risk and innovation adoption are considered a major source of practice variation, but have proven difficult to investigate empirically. Lastly, features of healthcare systems—notably, public coverage of healthcare expenditure, cost-based reimbursement of providers, and service-delivery organization, are generally associated with higher utilization rates and adoption of innovation. Research shows some successful strategies aimed at reducing variation in medical decision-making, such as the use of decision aids, data feedback, benchmarking, clinical practice guidelines, blinded report cards, and pay for performance. But despite these advances, there is uneven diffusion of new technologies and procedures, with potentially severe adverse efficiency and equity implications.