This paper examines the sources of financial innovations between 1990 and 2002, using Wall Street Journal articles as indicators of innovations. No evidence suggests that larger firms are particularly innovative; in many specifications, there is a disproportionate representation of smaller firms...

The paper seeks to understand the impact of the patent system on innovation by examining shifts in the strength of patent protection across sixty countries and a 150-year period. An examination of 177 policy changes reveals that strengthening patent protection appears to have few positive...

This paper empirically examines patents for financial formulas and methods, whose patentability was recently confirmed in the litigation between State Street Bank and Trust and Signature Financial Group. The number of such filings and awards has been accelerating. Patent filings by academics...

Public programs to provide early-stage financing to firms, particularly high-technology companies, have become commonplace in the United States and abroad. The long-run effectiveness of these programs, however, has attracted little empirical scrutiny. This paper examines the impact of the...

Silicon Valley, Singapore, Tel Aviv--the global hubs of entrepreneurial activity--all bear the marks of government investment. Yet, for every public intervention that spurs entrepreneurial activity, there are many failed efforts that waste untold billions in taxpayer dollars. When has...