The form of agglomeration economies (those internal to the firm as well as those external to it) is reviewed. Consideration is next given to recent changes in the regional (state) economies of the US Midwest, as part of an effort to explore the evolving nature of agglomeration economies....

The literature on the measurement of regional convergence at different spatial scales and over different time periods is extensive. This study explores the potential role of variations in European regional technical efficiency as a contributing factor in providing explanation for convergence or...