Diversification and market performance

Review of Industrial Organization - Recent theoretical research indicates that diversification may affect industry profitability for reasons (e.g., improved efficiency and increased entry) other...     

Judicial Reform

A review of the evidence on judicial reform across countriesshows that those seeking to improve economic performance shouldnot focus on judicial efficiency alone but on independence aswell. It also shows that the level of resources poured intothe judicial system and the accessibility of the system havelittle impact on judicial performance. Most of the problem ofjudicial stagnation stems from inadequate incentives and overlycomplicated procedures. Incentive-oriented reforms that seekto increase accountability, competition, and choice seem tobe the most effective in tackling the problem. But incentivesalone do not correct systematic judicial failure. Chronic judicialstagnation calls for simplifying procedures and increasing theirflexibility.      

Contingency Fees, Settlement Delay, and Low-Quality Litigation: Empirical Evidence from Two Datasets

Although flat fees are common for divorces, wills and trusts,and probate, lawyers in personal injury cases generally arepaid by contingency fee or at an hourly rate. Arguments havebeen made that contingency fees increase low-quality, "frivolous"litigation but counterarguments suggest that contingency feesactually limit such litigation and instead it is hourly feesthat increase low-quality litigation. Using a difference indifferences test and data on a cross section of states in 1992,we test whether legal quality is lower under contingency orhourly fees. We also examine medical malpractice claims in Floridausing a time series centered around a law change that limitedcontingency fees. We also examine the impact of fee arrangementson the expected time to settlement. We find that hourly feesencourage the filing of low-quality suits and increase the timeto settlement (i.e., contingency fees increase legal qualityand decrease the time to settlement).     

New guidelines from the National Cholesterol Education Program: what is the impact on risk assessment?

The National Cholesterol Education Program has developed a set of guidelines for optimal levels of serum lipids that are recommended to reduce the risk of coronary artery disease. This article compares those values to lipid levels found in insurance applicants.     

Normal mixture diffusion with uncertain volatility: Modelling short- and long-term smile effects

This paper introduces a parameterization of the normal mixture diffusion (NMD) local volatility model that captures only a short-term smile effect, and then extends the model so that it also captures a long-term smile effect. We focus on the ‘binomial’ NMD parameterization, so-called because it is based on simple and intuitive assumptions that imply the mixing law for the normal mixture log price density is binomial. With more than two possible states for volatility, the general parameterization is related to the multinomial mixing law. In this parsimonious class of complete market models, option pricing and hedging is straightforward since model prices and deltas are simple weighted averages of Black–Scholes prices and deltas. But they only capture a short-term smile effect, where leptokurtosis in the log price density decreases with term, in accordance with the ‘stylised facts’ of econometric analysis on ex-post returns of different frequencies and the central limit theorem. However, the last part of the paper shows that longer term smile effects that arise from uncertainty in the local volatility surface can be modeled by a natural extension of the binomial NMD parameterization. Results are illustrated by calibrating the model to several Euro–US dollar currency option smile surfaces.     

Innovation,R&D productivity,and global market share in the pharmaceutical industry

In this paper, we estimate two empirical models using a pooled, cross-section sample of international pharmaceutical firms for the period 1987 to 1989. The first model tests the relationship between R&D productivity and a vector of firm-specific characteristics. The second model tests the determinants of global market share. The empirical analysis reveals three findings. First, we find evidence that there are diminishing returns in the pharmaceutical R&D process. Second, we find that firm size has a positive effect on average R&D productivity and a positive impact on the marginal R&D productivity for plausible R&D staff sizes. And third, we find evidence that R&D productivity and the number of sales employees have a positive effect on the firm's global market share.The views presented in this paper reflect those of the authors and do not necessarily reflect the views of the U.S. International Trade Commission or any of its individual commissioners. We thank William Comanor, Daniel Gropper, Daniel Hamermesh, Susan Pozo, Paul Thistle, and Mark Wheeler for their comments and suggestions on an earlier draft of this paper. We assume all responsibility for any errors contained herein.     

Flexibility and Fairness in Liberal Market Economies: The Comparative Impact of the Legal Environment and High‐Performance Work Systems

This paper compares management flexibility in employment decision making in the United States and Canada through a cross‐national survey of organizations in representative jurisdictions in each country, Pennsylvania and Ontario, respectively, that investigates the impact of differences in their legal environments. The results indicate that, compared to their Ontario counterparts, organizations in Pennsylvania have a higher degree of flexibility in employment outcomes, such as higher dismissal and discipline rates, yet do not experience any greater flexibility or simplicity in management hiring and firing decisions. One explanation for this result may lie in the finding that organizations in Pennsylvania experience greater legal pressures on decision making, reflecting the generally more intense conflict in the employment law system in the United States. By contrast, high‐performance work systems, which some have looked to as a possible management‐driven mechanism for enhancing fairness in employment, had more modest effects.     

Water scarcity and food trade in the Southern and Eastern Mediterranean countries

This study investigates food trade patterns in relation to water resources availability in the Southern and Eastern Mediterranean countries (SEMED). Examinations show that most of these countries have a high dependence on the import of water intensive crops – cereal, vegetable oil and sugar, in the domestic food supply. The region as a whole is marginally a net exporter of fruits and vegetables, while variations are substantial across countries. Multi-variable regression analyses show that intensification of water scarcity is an important factor in explaining the increase in food import in the SEMED countries during the past two decades. It also finds that while GDP per capita has a strong influence on the level of food import in a country, its impact on changes in the import during the same period is rather modest. No significant relationship is found between the trade of fruits and vegetables and water resources availability. The projection on food import with respect to the decline in per capita water resources availability results in an increase of 40%, 39% and 14%, respectively, for cereal, vegetable oil and sugar by 2020 in the region, holding other factors constant. The European Union (EU) is the major food trade partner of the SEMED countries, except for cereal. About 70% of the fruit export and 55% of the vegetable export of the region currently go to the EU market. Expanding the export of fruits and vegetables is conducive to improving the value of water use in the SEMED countries. However, the expansion is constrained partly by the barriers in the destination markets, notably the EU.     

Allowances for Corporate Equity in Practice

This article provides an overview of full and partial allowancefor corporate equity (ACE) tax systems in practice. In the recentpast, ACE systems existed in Austria, Croatia and Italy. Brazilstill applies a variant of such a system and Belgium introducedone in 2006. This article summarizes the empirical literatureon past ACE systems, and provides a theoretical and empiricalassessment of the Brazilian ACE variant. The main finding isthat the Brazilian reform introduced an ACE system for a minorityof firms only, with the majority instead having a system ofdividend deductibility. Despite the reduction in the tax preferencefor debt finance, capital structures have not changed much,but dividends have increased. Investment appears to have benefitedfrom the reform, although the extent to which this was due tothe new structure rather than the tax cut is unclear. (JEL codes:H25, H21, C33)