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A New Method for Estimating Product-Level Emission Intensities and Implications for EU’s Carbon Border Adjustment Mechanism
Ohyun Kwon, Hao Zhao, Min Qiang Zhao, May 14, 2025We develop a new method for estimating product-level emission intensities (PLEI) by combining firm-level emissions with firm-product output data. This methodological innovation produces highly granular emission measures that are essential for both academic research and climate policy design. Applying the method to Chinese manufacturing data, we uncover stark heterogeneity: the top 10% of emission-intensive products account for 75% of emissions but only 4% of exports. We incorporate our PLEI estimates into a general equilibrium trade model to assess the EU’s Carbon Border Adjustment Mechanism (CBAM). Our simulations demonstrate that, at the same carbon price, product-level CBAM achieves substantially greater emissions reductions than sector-level CBAM, while causing markedly less trade disruption. These results underscore the importance of product-level emission intensity data in designing targeted and cost-effective climate policies.
Visible Hands: Professional Asset Managers’ Expectations and the Stock Market in China
John Ammer, John Rogers, Gang Wang, Yang Yu, Jun 11, 2025Mutual funds have become an important type of private institutional investor in Chinese security markets, with assets under management exceeding $3 trillion. We study how Chinese fund managers’ growth expectations affect their equity investment decisions, and in turn, the effects on stock prices. We identify a strong short-run causal effect of growth expectations on stock returns. We also find that fund investment helps bring prices in line with firms’ longer-run earnings prospects.
Paying to Pollute: How Carbon Offsets Actually Raised Emissions in China
Qiaoyi Chen, Nicholas Ryan, Daniel Xu, Oct 29, 2025How do we cut carbon emissions without slowing economic growth? One way is through offset markets: markets to buy reductions in emissions from parties all over the world. Offsets are meant to incentivize projects that cut emissions. Instead of reducing emissions themselves, firms or countries can pay others to do so on their behalf. This trade in abatement can potentially lower the costs of bringing emissions down.
The Rise of China as an International Lender
Zhengyang Jiang, Dec 16, 2025In the past decade, China has become the largest creditor to developing countries, surpassing the IMF, World Bank, and Paris Club countries. This column discusses how China's overseas lending interacts with US monetary policy – another key driver of the global financial cycle. It finds that Chinese and US policies jointly influence the level and the distribution of risk exposures in developing countries. As a result of China's expanding role in international lending, the architecture of global financial intermediation is also undergoing a fundamental transformation, carrying important implications for the stability and functioning of the international monetary system.
Government reform and innovation performance in China
Min Zhang, Andrés Rodríguez-Pose, Nov 26, 2025This column exploits the staggered implementation of government agency reforms in China to examine the impact of institutions on innovation. It finds that the regions which pioneered these reforms have reaped the rewards of reduced bureaucratic friction and enhanced regulatory efficiency, manifesting in marked gains in innovation performance. The dividends of institutional reform are most pronounced in city-regions already endowed with robust innovation infrastructure and intellectual capital.
