It is well known that the long-term unemployed fare worse in the labor market than the short-term unemployed, but less clear why this is so. One potential explanation is that the long-term unemployed are "bad apples" who had poorer prospects from the outset of their spells (heterogeneity)....

As the structure of the economy has changed over the past few decades, researchers and policy makers have been increasingly concerned with how these changes affect workers. In this book, leading economists examine a variety of important trends in the new economy, including inequality of earnings...