We argue that in order to answer the challenges that James Buchanan put to contemporary political economists, a reconstruction of public choice theory building on the work of Buchanan, F.A. Hayek and Vincent Ostrom must take place. Absent such a reconstruction, and the significant challenges...

Most economists assume that markets depend on government to enforce contracts and rules against default or fraud. With small transactions, however, the cost to use the legal system far exceeds the value at stake in a contract, and even with large contracts, the legal system often cannot solve...