Hausmann, RicardoHwang, JasonRodrik, Dani2020-02-172006-03Hausmann, Ricardo, Jason Hwang, and Dani Rodrik. “What You Export Matters.” CID Working Paper Series 2006.123, Harvard University, Cambridge, MA, March 2006.http://nrs.harvard.edu/urn-3:HUL.InstRepos:42482325Revised edition. When local cost discovery generates knowledge spillovers, specialization patterns become partly indeterminate and the mix of goods that a country produces may have important implications for economic growth. We demonstrate this proposition formally and adduce some empirical support for it. We construct an index of the "income level of a country's exports," document its properties, and show that it predicts subsequent economic growth.en-USResearch Paper or Report2020-02-17