David Halpern

• SOCIAL CAPITAL
• The Hidden Wealth of Nations
• An atlas of monthly mean distributions of SSMI surface wind speed, AVHRR sea surface temperature, TMI sea surface temperature, AMI surface wind velocity, sea WiFS chlorophyll-a, and TOPEX/POSEIDON sea surface topography during 1999
• Inside the Nudge Unit
• Inside the Nudge Unit: How Small Changes Can Make a Big Difference