Climate Policy and Economic Growth in California: A Comparative Analysis of Different Economic Impact Projections

As California policymakers move to implement the state’s Global Warming Solutions Act, Assembly Bill 32 (AB 32), there has been considerable controversy over the economic impacts of this landmark law to reduce global warming emissions. Multiple macroeconomic analyses have been conducted by a variety of economic modeling teams. But, to date, there has been no comparative analysis conducted of the assumptions or models used to produce these macroeconomic results. By providing an examination of the most prominent of these analyses, this report aims to provide context and transparency with respect to these modeling programs to better inform public discourse on the economic impacts of AB 32.