China introduced the world's largest emissions trading system in 2021 which is intended to help cost-effectively achieve its pledges of reaching a peak in CO2 emissions before 2030 and carbon neutrality before 2060. The system is a tradable performance standard (TPS) with a bottom-up intensity-based emissions cap, unlike a top-down absolute cap approach commonly used globally.  

General Equilibrium Analysis of Cost-Effectiveness and Distributional Impacts of China’s Nationwide CO2 Emissions Trading System developed and applied a multi-sector, multi-period general equilibrium model to assess the emissions, energy mix, and economic impacts of a series of options for the future development of this policy. These included cap-setting, benchmark design, auction design, and sectoral expansion, with valuable insights provided on the potential future evolution of this policy.