GLOBAL POPULATION GROWTH, TECHNOLOGY, AND MALTHUSIAN CONSTRAINTS: A QUANTITATIVE GROWTH THEORETIC PERSPECTIVE

• 成果类型: Article
• 署名作者: Lanz, Bruno; Dietz, Simon; Swanson, Timothy
• 署名单位: University of Neuchatel; University of London; London School Economics & Political Science
• 刊物名称: INTERNATIONAL ECONOMIC REVIEW
• ISSN/ISSBN: 0020-6598
• DOI: 10.1111/iere.12242
• 发表日期: 2017
• 页码: 973-1006
• 关键词: endogenous fertility; UNITED-STATES; MODEL; food; PRODUCTIVITY; agriculture; demand; KNOWLEDGE; CHILDREN; origins

摘要

We structurally estimate a two-sector Schumpeterian growth model with endogenous population and finite land reserves to study the long-run evolution of global population, technological progress, and the demand for food. The estimated model closely replicates trajectories for world population, GDP, sectoral productivity growth, and crop land area from 1960 to 2010. Projections from 2010 onward show a slowdown of technological progress, and, because it is a key determinant of fertility costs, significant population growth. By 2100, global population reaches 12.4 billion and agricultural production doubles, but the land constraint does not bind because of capital investment and technological progress.