From fields to factories: Special economic zones, foreign direct investment, and labour markets in Vietnam
利用历史卫星图像构建经济特区暴露度的连续指标，研究越南经济特区扩张对地方劳动力市场的影响，发现其导致就业从农业转向外资制造业，并提高工资和正式合同比例，女性受益尤为显著。
Vietnam's deep integration into GVCs has been driven by the establishment of special economic zones (SEZs). This paper examines the local labour market impacts of this SEZ programme. We trace the built-up area of SEZs over time to construct a novel continuous measure of SEZ exposure using historical satellite imagery. In a difference-in-differences design with continuous treatment, we examine the impact of SEZ exposure on local labour market outcomes at the district-level for the period 2009–2019. We find that the expansion of SEZs has led to a rapid shift in employment from own-account and family work in agriculture to manufacturing in foreign firms. We also show that SEZ exposure leads to higher wages and more formal employment contracts. Earnings improvements are not confined to workers in foreign manufacturing firms, but spill over to workers in household businesses and domestic firms. The effects on women account for most of these impacts.