On the history of marine insurance:
- "A Broker and his Network: Marine Insurance in Philadelphia during the French and Indian War, 1755-1759".
- "Adverse Selection and Institutional Change in Eighteenth Century Marine Insurance".
- Current projects relate to marine insurance of the slave trade, and marine insurance in New York, 1801-05.
- "Social Capital and Corruption: Theory, and Evidence from India". (an earlier version was distributed as BREAD working paper #75).