This paper estimates annual data on educational attainment for 3,076 mainland U.S. counties 1991-2005. Being estimated without resorting to ancillary information, this data is suited particular well for panel regression analyses. Several plausibility checks indicate that the data is fairly...

Despite favourable ecological and economic results, many developing countries have not yet adopted an integrated pesticide management (IPM). Given rising marginal costs and diminishing marginal benefits from IPM technology transfer, an optimal control framework is used to identify optimal rates...

The paper investigates by means of cointegration analysis whether the recently observed low levels of private saving and the current account balance in the United States are worrisome in the sense that they cannot be sufficiently explained by determinants which performed well in the past. Stock...

This paper addresses the question of why prolonged regional unemployment differentials tend to persist even after their proximate causes have been reversed (e.g., after wages in the highunemployment regions have fallen relative to those in the low-unemployment regions). We suggest that the...

Does regional unemployment increase or rather decrease entrepreneurial activity? Although this question has been hotly debated among researchers for decades the answers yielded so far are ambiguous and inconclusive. The paper proposes an innovative approach that takes not only interregional...

Many labor market models use both idiosyncratic productivity and a vacancy free entry condition. This paper shows that these two features combined generate an equilibrium comovement between matches on the one hand and unemployment and vacancies on the other hand, which is observationally...

Money long-run super-neutrality and the vertical long-run Phillips curve are two widely shared beliefs in the economics profession and among economic policy-makers. The present survey is devoted to anomalous empirical evidence which challenges this view. We consider a variety of studies,...

A labor matching model with nominal rigidities can match short-run movements in labor's share with some success. However, it cannot explain much of the behavior of employment, vacancies, and job flows in postwar US data without resorting to additional shocks beyond monetary policy and...

Standard macroeconomic models underpredict the volatility of unemployment fluctuations. A common solution is to assume wages are rigid. We explore whether this explanation is consistent with the data. We show that the wage of newly hired workers, unlike the aggregate wage, is volatile and...

This paper presents a theory explaining the labor market matching process through microeconomic incentives. There are heterogeneous variations in the characteristics of workers and jobs, and firms face adjustment costs in responding to these variations. Matches and separations are described...