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