One competitive-market explanation of interindustry wage differentials that is not challenged by the persistence of these differentials is that they are due to differences across workers in unobserved ability or quality. In contrast, this paper explores the unobserved ability hypothesis by using...

Background: In many geographic regions, both in developing and in developed countries, the number of health workers is insufficient to achieve population health goals. Financial incentives for return of service are intended to alleviate health worker shortages: A (future) health worker enters...

In many countries worldwide, health worker shortages are one of the main constraints in achieving population health goals. Financial-incentive programmes for return of service, whereby participants receive payments in return for a commitment to practise for a period of time in a medically...

This paper examines the generation and management of municipal solid waste (MSW) through the lens of economics. We estimate that the global burden of MSW amounted to 1.3 billion metric tons in 1990, or 0.67 kilograms of waste per person per day. Industrial countries account for a...

This study examines the claim that the AIDS epidemic will slow the pace of economic growth. We do this by examining the association, across fifty-one developing and industrial countries for which we were able to assemble data, between changes in the prevalence of AIDS and the rate of growth of...

This paper explores the emergence of a world economy since 1950 and its implications for the world's labor force. There are five main sets of conclusions. First, the share of the world's labor force located in developing countries increased significantly between 1950 and 1990. Productivity...

What enables some employee ownership firms to overcome the free rider problem and motivate employees to improve performance? This study analyzes the role of human resource policies in the performance of employee ownership companies, using employee survey data from 14 companies and a national...

“The standard explanation of why advanced Europe has generated less work per adult than the US is that something is seriously amiss with EU labor markets. The theme of this piece is simple. Compared to an ideal competitive market, EU labor markets fall seriously short, but compared to labor...

With the continuing expansion of global economic integration, labor standards in developing countries have become a hot button issue. One result has been a proliferation of efforts to use the market to put pressure directly on multinational corporations to improve wages and working conditions in...

This paper examines behavior in a tournament in which we vary the tournament prize structure and the information available about participants' skill at the task of solving mazes. The number of solved mazes is lowest when payments are independent of performance; higher when a single, large prize is...