How Access to Irrigation Influences Poverty and Livelihoods: A Case Study from Sri Lanka
结合生计方法和回归分析，利用斯里兰卡南部家庭数据，量化灌溉基础设施投资对收入的正向影响，并揭示非灌溉因素及部分家庭难以脱贫的原因。
This study combines a livelihoods approach with a regression approach to quantify the effectiveness of irrigation infrastructure investment on improving people's livelihood strategies. Using a unique dataset based on households in southern Sri Lanka, and a natural experimental setting, we estimate from a two-stage income regression model to show that irrigation access has a positive effect on income through livelihood choices. We also show through qualitative approaches that factors not linked to irrigation infrastructure may contribute to changes in livelihood portfolios. In addition, we highlight factors that result in certain households being unable to move out of poverty despite access to the improved irrigation infrastructure.