This article quantifies the role of plant construction, expansion, contraction, and closing in generating net and gross changes in U.S. manufacturing employment over the 1963-82 period. A new longitudinal data set, constructed from the plant-level observations collected in the last five Census of Manufactures, is utilized. The reallocation of employment opportunities across and within sectoral, regional, and cohort boundaries is measured. Over 70% of the turnover in employment opportunities occurs across plants within the same two-digit industry and geographic region. Systematic differences in the employment fluctuations of plants of different ages are also found.

Using establishment‐level data, we shed light on the sources of the changes in the structure of production, wages, and employment that have occurred over recent decades. Our findings are: (1) the between‐plant component of wage dispersion is an important and growing part of total wage dispersion; (2) much of the between‐plant increase in wage dispersion is within industries; (3) the between‐plant measures of wage and productivity dispersion have increased substantially over recent decades; and (4) a significant fraction of the rising dispersion in wages and productivity is accounted for by changes in the distribution of computer investment across plants.