Before the landmark State Street case in 1998, the courts and the U.S. Patent and Trademark Office (USPTO) had often denied patents to inventions that were no more than methods of doing business. But State Street swept away three decades of complex, inconsistent case law, firmly establishing the...

Using hypothetical portfolios created from historical data on industry profitability, the authors demonstrate that some combinations of banks with other industries could produce higher returns on equity with less risk.

For at least the past twenty-five years, financial services industries have been creating innovative products and services without the help of patents. The 1998 State Street Bank case changed all this, making patents freely available in these industries. Will patents help or hurt financial...

Evidence is reviewed suggesting that: (a) in market economies financial systems develop and attain maturity during the early stages of industrialization; (b) frictions caused by asymmetric information and the incompleteness of contracts are important in credit markets, and intermediaries play an...