, measured firm productivity will reflect both true differences in productivity and non-random decisions about which products to … to characterize the direction and magnitude of the resulting bias in productivity and to trace the implications for … provides a new source of reallocation and leads to biased measures of deregulation’s impact on firm and aggregate productivity …

aggregation problem introduces a bias into standard measures of firm productivity. We develop a theoretical model of heterogeneous …

aggregation problem introduces a bias into standard measures of firm productivity. We develop a theoretical model of heterogeneous …

substantial body of work has explored the importance of the extensive margins of plant entry and exit in employment and output …

theoretical model incorporates heterogeneous firms, heterogeneous products, and ongoing entry and exit. In equilibrium, firm … fixed costs. Changes in market structure result in systematic patterns of firm entry/exit and product switching. … productivity is correlated with product fixed costs, with the most productive firms choosing to make the products with the highest …

theoretical model incorporates heterogeneous firms, heterogeneous products, and ongoing entry and exit. In equilibrium, firm … fixed costs. Changes in market structure result in systematic patterns of firm entry/exit and product switching. … productivity is correlated with product fixed costs, with the most productive firms choosing to make the products with the highest …