Why do HMOs spend less? Patient preferences, cost-control incentives, and prices

Earnings adjustment to policy: Evidence from the Social Security Earnings Test. With Alex Gelber and Damon Jones. Revise and resubmit, Review of Economic Studies. Also available as NBER working paper 19491.

The New Stylized Facts About Income and Subjective Well-Being. Emotion 2012 12(6): 1181-7. With Betsey Stevenson and Justin Wolfers.

Income, Growth, and Subjective Well-Being.” Development Challenges in a Post-Crisis World. World Bank, Washington D.C., 2010. With Betsey Stevenson and Justin Wolfers.