Since the early 1990s, there has been a renaissance in the study of regional growth, spurred by new models, methods, and data. We survey a range of modeling traditions, and some formal approaches to the hard problem of regional economics; namely, the joint consideration of agglomeration and...

This chapter examines the conditions under which foreign aid will be effective in raising growth, reducing poverty, and meeting basic needs in areas such as education and health. The primary aim is not to draw policy conclusions, but to highlight the main questions that arise, the contributions...

Decisions of national competition authorities have important effects on other jurisdictions. We provide a framework to quantify the domestic and cross-border effects of mergers, and to draw conclusions for the coordination of national merger policies. We develop a two-country model with many...