Book excerpt: Annotation Between 1977 and 1997, the union wage premium declined for less- educated workers, while it rose for better-educated union workers. In this study, Baldwin (professor emeritus, economics, University of Wisconsin-Madison) investigates the role of changes in US imports and exports and finds that increased global trade has contributed to the decline in unionization among workers with less education. Annotation (c)2003 Book News, Inc., Portland, OR (booknews.com).