Introduction / Josh Lerner and Antoinette Schoar -- International perspectives on the nature of entrepreneurship -- Explaining international differences in entrepreneurship: the role of individual characteristics and regulatory constraints / Silvia Ardagna and Annamaria Lusardi -- Who are the...

The fundamental unit of production in microeconomics is the firm, and this mirrors reality in the United States and United Kingdom. But elsewhere, business groups can be the more important unit, for business strategy is often formulated at the business group level, not the firm level. In many...

This paper reexamines the limits of the firm in Research and Development (R&D). Using evidence drawn from industrial laboratories we study the causes and effects of R&D sourcing. We begin with the causes of sourcing, finding that Research Joint Ventures (RJVs), the option to purchase and...

America's most innovative firms participate in the U.S. Commerce Department's Advanced Technology Program (ATP) those that participated at least once accounted for over 40 percent of U.S. patents to U.S. entities during 1988-1996. Many firms are repeat participants. ATP participation has...

This paper analyzes the determinants of partial ownership of the foreign affiliates of U.S. multinational firms and, in particular, why partial ownership has declined markedly over the last 20 years. The evidence indicates that whole ownership is most common when firms coordinate integrated...