In a new Keynesian model with random search in the labor market, endogenous selection among heterogeneous workers amplifies fluctuations in unemployment and results in excess unemployment volatility relative to the efficient allocation. Recessions disproportionately affect lowproductivity...

Studies find that technological change has contributed to the decline in manufacturing and to persistent unemployment in many advanced economies. While process innovation can be job-destroying, product innovation can imply the emergence of new firms, new sectors, and thus new jobs. But even for...