The paper develops a simple three-sector model of a developing country with nominal wage rigidity, in which one sector is thought of as the primary sector and the other two are sectors in which the country can diversify. The paper then analyzes the relationship between the market structure of...

The paper examines the implications of lower trade barriers for sectoral diversification and macroeconomic stability in developing economies with a large primary goods sector. It shows that lower trade barriers can have ambiguous effects on macroeconomic stability. It shows also that...

We propose a theory of low-frequency movements in unemployment based on asymmetric real wage rigidities. The theory generates two main predictions: long-run unemployment increases with (i) a fall in long-run productivity growth and (ii) a rise in the variance of productivity growth. Evidence...