Longitudinal Effects of Technical Change, Capital Accumulation and Labor Market Dynamics on Deforestation in the Low-Income tropics

技术变革、资本积累和劳动力市场动态对低收入热带地区森林砍伐的纵向影响

• 批准号: 0213750
• 负责人: Gerald Shively
• 金额: $ 16.5万
• 依托单位: Purdue University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-08-15 至 2005-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0213750&HistoricalAwards=false
• 关键词: Longitudinal; Effects; Technical; Change; Capital

This research uses household data to study how technical change in agriculture affects rates of tropical deforestation. Data come from surveys conducted in the Philippines over the period 1995-2001. The timing and coverage of the data provide an opportunity to study the direct and indirecteffects of irrigation on agricultural production and labor allocation, while controlling for a number of agronomic features of the sample farms and important social factors such as tenure security. It is also possible to trace the causal chain of impacts leading from technology changes to changesin employment, incomes, and activities undertaken by households living along the forest margin. The analysis links three bodies of economic theory regarding agricultural development, labor market dynamics, and environmental management. Specific objectives include (1) assessing labor hiring and labor selling decisions in a dynamic context and their implications for capital formation, subsequent factor use, labor market participation, and forest pressure; (2) identifying the importance of transaction and supervision costs, as well as tenure security and site-specific factor productivity, for labor hiring and selling decisions; and (3) testing and correcting for attrition bias in the sample, especially as influenced by tenure security and factor productivity. Results will provide an empirical foundation for assessing competing theories regarding poverty and the environment, and will also inform broader debates regarding the distributional effects of growth and development and their implications for important aspects of household behavior. Results should have implications for a range of social and environmental outcomes including economic development, poverty reduction, biodiversity protection and carbon sequestration.

这项研究使用家庭数据来研究农业技术变革如何影响热带森林砍伐率。数据来自1995-2001年期间在菲律宾进行的调查。 数据的时间和覆盖范围为研究灌溉对农业生产和劳动力分配的直接和间接影响提供了机会，同时控制了样本农场的一些农艺特征和重要的社会因素，如土地权保障。还可以追踪从技术变革到就业、收入和生活在森林边缘沿着的家庭所从事活动的变化的因果影响链。 分析链接三个机构的经济理论，农业发展，劳动力市场动态和环境管理。具体目标包括：（1）在动态背景下评估劳动力雇用和出售决策及其对资本形成、后续要素使用、劳动力市场参与和森林压力的影响;（2）确定交易和监督成本、保有权保障和特定地点要素生产率对劳动力雇用和出售决策的重要性;（3）检验和修正样本中的流失偏差，特别是受保有权保障和要素生产率影响的流失偏差。研究结果将为评估关于贫穷和环境的相互竞争的理论提供经验基础，并将为关于增长和发展的分配效应及其对家庭行为重要方面的影响的更广泛辩论提供信息。其成果应对一系列社会和环境成果产生影响，包括经济发展、减贫、生物多样性保护和碳固存。