Carolyn Fischer's research focuses on policy mechanisms and modeling tools that cut across environmental issues, including environmental policy design and technological change, international trade and environmental policies, and resource economics. In the areas of climate change and energy policy, she has investigated the implications of different designs for emissions trading programs, particularly with respect to allocation schemes, and has also conducted research on CAFE standards, renewable portfolio standards, and energy efficiency programs. In areas of natural resource management, her research addresses issues of wildlife conservation, invasive species, and biotechnology, with particular emphasis on the opportunities and challenges posed by international trade.