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Intensive and extensive margins of mining and development: Evidence from Sub-Saharan Africa

机译:矿业和发展的密集和广泛利润:来自撒哈拉以南非洲的证据

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摘要

What are the economic consequences of mining in Sub-Saharan Africa? Using a panel of 3,635 districts from 42 Sub-Saharan African countries for the period 1992 to 2012 we investigate the effects of mining on living standards (measured by night-lights and household/cohort characteristics from Demographic and Health Surveys) and public service provisions (from Afrobarometer). Night-lights increase in mining districts when mineral production expands (intensive margin), but large effects are mainly associated with new discoveries and new production (extensive margin). We identify the effect by carefully choosing feasible but not yet mined districts as a control group. In addition, we exploit first, single-first, giant and major discoveries as exogenous news shocks. Mines in Africa exhibit enclave characteristics as we find little evidence of significant spillovers to other districts.
机译:撒哈拉以南非洲采矿的经济后果是什么? 1992年至2012年,使用来自42个撒哈拉以南非洲国家的3,635个地区,我们调查挖掘对生活水平的影响(由人口统计和健康调查的夜灯和家庭/队列特征)和公共服务规定( 来自Afrobarometer)。 矿产生产夜灯延长矿产生产(重症裕度),但大量效果主要与新发现和新生产(广泛利润)有关。 我们通过仔细选择可行但尚未开采的地区作为对照组来确定效果。 此外,我们首先利用,单首,巨型和主要发现作为外源新闻冲击。 非洲的矿山展览会的特色,因为我们发现对其他地区的显着溢出效果的少数证据。

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