地雷与空间发展
Landmines and Spatial Development
Econometrica · 2025 · [{"name": "Giorgio Chiovelli", "affiliation": ["Universidad de Montevideo"]}, {"name": "Stelios Michalopoulos", "affiliation": ["Center for Economic and Policy Research", "John Brown University"]}, {"name": "Elias Papaioannou", "affiliation": ["Center for Economic and Policy Research", "London Business School", "London School of Economics and Political Science"]}]
中文摘要
在许多饱受冲突困扰的社区,敌对行动结束很久之后,地雷仍影响着数百万人的生活。然而,关于排雷作用的研究却很少。我们考察了莫桑比克地雷清除的经济后果——莫桑比克是唯一一个从1992年的严重污染状态转变为2015年无地雷状态的国家。首先,我们展示了自建的疑似污染区域地理参照目录,以及排雷行动的详细记录。其次,事件研究分析揭示,排雷活动与随后以夜间灯光反映的地方经济表现之间存在稳健关联:经济活动在清除前的几年里并未回升,作业方调查此前调查中被误标为污染的区域时,经济活动也未见增加。第三,鉴于地雷清除重塑了交通可达性,我们采用市场可达性方法探究直接效应与间接效应。为推进识别,我们分离出因清除地雷所导致的市场可达性变化,这些地雷位于此前被视为安全、且远离早期全国性调查覆盖范围的区域。第四,政策模拟显示,地雷清除带来了显著的全经济红利,但只有在纳入市场可达性效应时才成立;这些效应远超直接的生产率关联。此外,政策反事实分析揭示,若排雷不优先疏通交通路线,将产生显著的总量成本。这些结果为乌克兰及其他地区排雷项目的设计提供了启示,凸显了集中协调以及优先处理有助于商业活动区域的必要性。
Abstract
Landmines affect the lives of millions in many conflict‐ridden communities long after the end of hostilities. However, there is little research on the role of demining. We examine the economic consequences of landmine removal in Mozambique, the only country to transition from heavily contaminated in 1992 to mine‐free in 2015. First, we present the self‐assembled georeferenced catalog of areas suspected of contamination, along with a detailed record of demining operations. Second, the event‐study analysis reveals a robust association between demining activities and subsequent local economic performance, reflected in luminosity. Economic activity does not pick up in the years leading up to clearance, nor does it increase when operators investigate areas mistakenly marked as contaminated in prior surveys. Third, recognizing that landmine removal reshapes transportation access, we use a market‐access approach to explore direct and indirect effects. To advance on identification, we isolate changes in market access caused by removing landmines in previously considered safe areas, far from earlier nationwide surveys. Fourth, policy simulations reveal the substantial economywide dividends of clearance, but only when factoring in market‐access effects, which dwarf direct productivity links. Additionally, policy counterfactuals uncover significant aggregate costs when demining does not prioritize the unblocking of transportation routes. These results offer insights into the design of demining programs in Ukraine and elsewhere, highlighting the need for centralized coordination and prioritization of areas facilitating commerce.
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