In the past few years permit trading has become a popular policy instrument to achieve emissions reductions or other environmental goals at minimal cost. There are already a number of existing regimes on firm as well as on national level in which permits for SO2, NOX and CO2 emissions but also...

This paper explores the optimal design of subsidies for hiring unemployed workers (?employment vouchers? for short) in the context of a dynamic model of the labor market. Focusing on the short-term and long-term effects of the vouchers on employment and unemployment, the analysis shows how the...

Die entwicklungspolitische Debatte hat lange darunter gelitten, daß ihr eine überzeugende theoretische Grundlage fehlte. Dies beginnt sich seit einigen Jahren mit dem Aufkommen der "neuen" Wachstumstheorie zu ändern. Deren Implikationen stützen das, was neoklassisch orientierte...

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