Jovanovic, Boyan; Lach, Saul - In: International Economic Review 38 (1997) 1, pp. 3-22
Micreconomic data show two important facts about new products. First, some products are more important than others. Second, it takes them years to penetrate the market significantly. The authors' calibrated model with these features overpredicts the autocovariance of U.S. GNP at long lags but...