The Geography of Development

• 成果类型: Article
• 署名作者: Desmet, Klaus; Krisztian Nagy, David; Rossi-Hansberg, Esteban
• 署名单位: Southern Methodist University; Centre de Recerca en Economia Internacional (CREI); Princeton University
• 刊物名称: JOURNAL OF POLITICAL ECONOMY
• ISSN/ISSBN: 0022-3808
• DOI: 10.1086/697084
• 发表日期: 2018
• 页码: 903-983
• 关键词: income; agglomeration; PRODUCTIVITY; QUALITY; LIFE

摘要

We develop a dynamic spatial growth theory with realistic geography. We characterize the model and its balanced-growth path and propose a methodology to analyze equilibria with different levels of migration frictions. Different migration scenarios change local market size, innovation incentives, and the evolution of technology. We bring the model to the data for the whole world economy at a 1 degrees x 1 degrees geographic resolution. We then use the model to quantify the gains from relaxing migration restrictions. Our results indicate that fully liberalizing migration would increase welfare about threefold and would significantly affect the evolution of particular regions of the world.