In the mid 2000s, shale-energy-rich U.S. counties experienced a sudden and significant economic shock resulting from energy extraction. While the resulting localized economic effects are relatively well understood, less is known about the geographic dispersion of the effects. We build upon an existing literature, most notably Feyrer, Mansur, and Sacerdote (2017), by examining the conditional economic effects of nearby energy production. Because energy-producing counties tend to be located near each other, producing counties experience inward economic spillovers from other nearby producing counties and this inflates the estimated effect of own-county production. Accounting for this, we identify smaller income effects of hydrocarbon production than Feyrer, Mansur, and Sacerdote (2017), limited to counties within 60-80 miles of the source of production. The proposed estimation strategy can be applied more generally to estimate the dispersion of multiple, simultaneously occurring economic shocks.

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经济冲击的地域分散性：来自Fracking Revolution的证据：评论

在2000年代中期，富含页岩能源的美国各州因开采能源而遭受了突然而重大的经济冲击。尽管相对较好地理解了所产生的局部经济影响，但人们对影响的地理分布知之甚少。通过研究附近能源生产的条件经济影响，我们以现有文献为基础，尤其是Feyrer，Mansur和Sacerdote（2017）。因为能源生产县往往位于彼此附近，所以生产县经历了附近其他生产县向内的经济溢出，这夸大了本县生产的估计效果。考虑到这一点，我们发现碳氢化合物生产的收入影响要比Feyrer，Mansur和Sacerdote（2017）小，仅限于生产来源60-80英里内的县。所提出的估计策略可以更普遍地应用于估计多个同时发生的经济冲击的分散性。