时间：2024年4月12（周六）9：00

地点：气候变化与能源经济研究中心会议室

Paper1：孙泽 Does the integration of the digital economy and the real economy enhance urban green emission reduction efficiency Evidence from China

摘要：As a new engine driving high-quality economic development, the integration of the digital economy (DE) and the real economy (RE) (IDERE) may become crucial in enhancing the efficiency of green emission reduction (EGER). Based on panel data from 279 cities in China spanning from 2011 to 2021, this study explores the impact of IDERE on EGER. The results indicate: (1) IDERE can significantly enhance EGER. (2) Heterogeneity analysis shows that IDERE has a more substantial promoting effect on EGER in eastern regions, intelligent city pilots, cities with strong intellectual property protection, and cities with high industrial agglomeration levels. Mechanism analysis reveals that IDERE primarily boosts EGER by fostering green technological innovation (GTI), promoting industrial structure upgrading (ISU), and reducing energy consumption intensity (ECI). (3) IDERE exhibits a positive spatial spillover effect on improving EGER, facilitating collaborative emission reduction among cities. These findings provide new insights into promoting IDERE development and enhancing EGER, as well as offering fresh perspectives for achieving dual carbon targets.

Paper2：尹洁 Trade networks and firm value: Evidence from the U.S.-China trade war

摘要：We study the financial implications of the 2018–2019 U.S.-China trade war for global supply chains. Around the dates when higher tariffs are announced, U.S. firms that depend more on exports to and imports from China experience larger declines in market value, with the negative effect spilling over to the affected firms' suppliers and customers through production networks. The trade war effect is mainly concentrated among U.S. firms that sell to Chinese customers with low R&D intensity or outsource to Chinese differentiated input suppliers. We also exploit the within-firm variation in tariff exposure according to the detailed product lists and conduct a reverse experiment based on the 2019 trade talks. To explain the findings, we propose a theoretical model that highlights how complex trade structures shape shareholder wealth.