Studies examining the effectiveness of welfare-to-work programs present findings that are mixed and sometimes at odds, in part due to research design, data, and methodological limitations of the studies. We aim to substantially improve on past approaches to estimate program effectiveness by...

Welfare reform has transformed the U.S. cash assistance program for single parents and their children. Although there remains substantial uncertainty about the importance of reform in producing the subsequent decline in the welfare caseload, even less is known about its impact on the experiences...

This paper uses administrative data from Missouri to examine the sensitivity of job training program impact estimates based on alternative nonexperimental methods. In addition to simple regression adjustment, we consider Mahalanobis distance matching and a variety of methods using propensity...

Declining R&D intensities at the national level coincide with growing international technological links. Deviations of individual OECD countries from the average R&D intensity reflect differences in industry structure as well as in sectoral R&D intensity. At the same time, the sectoral...

Efficiencies have yet not played a prominent role in American merger enforcement policy, although the federal antitrust agencies and the courts have recognized efficiencies as a factor in merger analysis that may tilt the balance in an otherwise anticompetitive transaction. A review of the...

When I wrote my book on EMU four years ago (Kenen 1995), very little had been written on the international dimensions of EMU There was a chapter in the Commission's path-breaking study (European Commission, 1990). There were papers by Alogoskoufis and Portes (1991, 1992), Cooper (1992), Goodhart...

The paper presents a theory of the demand for money that combines a special case of the shopping time exchange economy with the cash-in-advance framework. The model predicts that both higher inflation and financial innovation - that reduces the cost of credit - induce agents to substitute away...

This paper proposes a model of the US unemployment rate which accounts for both its asymmetry and its long memory. Our approach, based on the tests of Robinson (1994), introduces fractional integration and nonlinearities simultaneously into the same framework (unlike earlier studies employing a...

Variations of bilateral aid flows are difficult to explain on the basis of official development objectives or recipient need. At the example of US aid to Pakistan, this paper suggests alternative political economic explanations, notably the relevance of ethnic lobbying and the relevance of US...