This paper explores role of multi-product plants and product switching in the Japanese manufacturing sector. While a substantial body of work has explored the importance of the extensive margins of plant entry and exit in employment and output flows, only recently has research begun to examine...

This paper examines the frequency, pervasiveness and determinants of product switching among U.S. manufacturing firms. We find that two-thirds of firms alter their mix of five-digit SIC products every five years, that one-third of the increase in real U.S. manufacturing shipments between 1972...

This paper examine multi-product exporters in Belgium, considering their importance and the relationship between the margins of trade and firm productivity. We employ proxies for trade costs to quantify the extensive and intensive margin adjustments of trade. Relatively few exporting firms...