David E Balducchi & Randall W Eberts 
Labor Exchange Policy in the United States [PDF ebook] 

This book describes the evolution of labor exchange policy in the United States, summarizes the major findings about the effectiveness of labor exchange services, and offers reflections on the future for labor exchange policy. In addition, the contributors provide an international perspective on job brokerage functions and a discussion on the appropriate role for governments in helping job seekers and employers make the proper job match.