The high cost of providing formal training to displaced workers, combi
ned with the lack of consistent evidence to support training program e
ffectiveness, has prompted researchers and policy makers to suggest th
at formal training be offered only to select groups of displaced worke
rs. This paper reviews theoretical and empirical outcomes suggesting t
hat displaced workers who are likely to switch industries as a result
of displacement are one group toward which formal training could be ta
rgeted. Given this motivation, the paper goes on to examine the empiri
cal framework for such targeting. Estimates presented indicate that wo
rkers displaced from industries that employ only a small fraction of t
heir local labor force are more likely to switch industries after disp
lacement. In addition, the relative importance of workers' pre-displac
ement industries in their local labor markets is a stronger predictor
of industry switching than other commonly used measures of local labor
market conditions.