英文文献：Deriving Empirical Definitions Of Spatial Labor Markets: The Roles Of Competing Versus Complementary Growth
英文文献作者：Khan, Romana,Orazem, Peter F.,Otto, Daniel M.
英文文献摘要：
Rural communities compete with each other for firms, but their residents often commute large distances to work. Consequently, rural communities can benefit from economic growth occurring as much as 50 miles away. Data on county population growth shows that counties benefit from growth one or two counties away.