Sam is interested in measuring the costs and benefits of a variety of environmental problems and policies – especially those pertaining to climate change. His job market research looks at the price impacts of energy taxes and how they vary with local competition and household wealth. He is also conducting research on water pollution, policy, and health in India. Sam has taught "economic analysis of public policy" to Master students and "economics of climate change" to undergraduates while at Harvard. His past work includes stints at The World Bank, Resources For the Future, and Harvard's Center for International Development. He currently writes blog articles at Sense & Sustainability.