How road improvement reduces poverty: the case of Laos
用一般均衡模型研究老挝农村道路改善对贫困的影响，发现将无车路升级为旱季路减贫效果更大但成本也更高。
Abstract A general equilibrium modeling approach is used to study the effect that rural road improvement has on poverty incidence in Laos. Household survey data are used to distinguish three categories of rural villages according to their road access: (i) no vehicular access; (ii) dry season only access; and (iii) all weather access. A general equilibrium model of the Lao economy is then used to simulate, first, the effect of upgrading category (i) to category (ii) roads, and second, category (ii) to category (iii) roads. The former has a larger poverty‐reducing effect but is also more costly.