【Trade Seminar】Optimal Trade Policies and Labor Markets
2025/05/08
研討會日期 : 2025-05-08
時間 : 14:30
主講人 : Professor Dan Lyu (呂 丹)
地點 : Conference Room B110
主持人 : Professor Wen-Tai Hsu
演講者簡介 : Professor Dan Lyu received her Ph.D. in Economics from the University of Chicago in 2011. She is currently an Assistant Professor at the Chinese University of Hong Kong. Her research interests are International Trade, Macroeconomics, and Growth.
演講摘要 : We provide a general formula for optimal unilateral policies in multi-sector, general-equilibrium models with various widely adopted labor market specifications. Sector-specific tariffs are summarized by a matrix of partial supply elasticities and the share of Home's net import in foreign incomes, reflecting Home's import market power. Sector-specific export taxes depend on trade elasticities and Home's market share in foreign consumption, reflecting Home's export market power. Home imposes higher tariffs or export taxes on sectors with larger market powers. Furthermore, for models belonging to our defined CES supply system, the differential tariffs across sectors can be expressed by a constant related to the elasticity of Foreign labor market supply and the sectorial share of Home's net import in foreign incomes, even though endogenous supply elasticities are not constant. Due to direct targeting, Home's unilateral optimal tariffs are directly influenced by the elasticity of Foreign labor market supply, rather than its own labor market conditions. However, in the event of a trade war, when Foreign retaliates, the change in Home's welfare depends on Foreign's market power hence Home's own labor market.
