Determinants of long-run unemployment

This paper investigates the determinants of long-run unemployment and growth by extending the endogenous growth model of Howitt and Aghion (1998) to allow for a more general treatment of the labor market in the spirit of Pissarides (1990). We find that (i) both long-run growth and unemployment depend not only on factors that affect long-run growth as identified in endogenous growth models with full employment, but also on certain labor market parameters; (ii) long-run unemployment may rise or fall with growth depending on the model's parameters;. and (iii) though government policies that promote growth indirectly through improvement in labor market efficiency always reduce the long-run unemployment rate, policies that directly encourage investment in research and development may increase the unemployment rate.