Ruozi Song is an Economist in the Sustainability and Infrastructure team in the World Bank¡¯s Development Research Group. Her research focuses on sustainable energy, climate change and adaptation, as well as the efficiency and distributional impact of environmental policies. Her recent work studies how firms and consumers make decisions during the transition to a greener economy. She holds a Bachelor¡¯s in Statistics from Fudan University in China and a PhD in Economics from the University of Southern California.