A exploratory workshop was held to consider what could be gained by adding genetic analyses to attempts to understand economic behavior. Economists, psychologists and neuroscientists discussed economic phenotypes, how these phenotypes could be measured, the level of analysis needed to assess individual differences within them, and how phenotypes might be influenced by aging. The workshop, chaired by David Laibson, David Reiss and Erica Spotts, fostered the exchange of ideas through formal presentations, invited commentary and general discussion.