I use panel data to examine whether long‐term changes in industry wages are positively related to long‐term changes in industry employment. Previous research using repeated cross‐sectional data found no systematic relationship between these variables. Using standard fixed effects models to deal with individual heterogeneity, I find a robust positive relationship between changes in composition‐constant industry wages and industry employment. This suggests that growing industries attract less skilled individuals in a manner that biases down the estimated relationship between industry employment and wages in repeated cross‐sectional data. The results imply that supply curves facing industries are elastic but upward sloping.

Teenage peers are perceived as being important, but there is little conclusive evidence demonstrating this. This paper uses data on the population of Norway and idiosyncratic variation in cohort composition within schools to examine the role of peer composition in ninth grade on longer-run outcomes such as IQ scores, teenage childbearing, education, and labor market outcomes. We find that outcomes are influenced by the proportion of females in the grade, and these effects differ by gender. Average age and average mother’s education of peers have little impact on teenagers but average father’s earnings of peers matters for boys.