Wei Xiang is a fifth-year PhD candidate in economics at Yale. His research focuses on economic growth, international trade, and environmental policies, with his most current project exploring how environmental regulation shapes the global distribution of production and clean growth. In his newly published joint paper at the National Bureau of Economic Research, he proposes a framework to understand how technology diffusion through international trade and internal migration contributes to the economic growth of China in the 1990s and 2000s. Furthermore, he has been doing policy research for international organizations such as the Asian Development Bank and the World Bank in the past three years. Wei’s research has been recognized by awards and grants, including the Arvid Anderson Fellowship and the Sylff Fellowship. He teaches undergraduate-level macroeconomics and financial economics at Yale, where he has been awarded the 2021-2022 Yale Prize Teaching Fellowship.