A Theory of Urban Growth
研究内生经济增长和外生人口增长下，城市化如何影响增长效率，以及增长如何改变城市化模式，并分析地方政府能否内化本地动态外部性。
In an economy experiencing endogenous economic growth and exogenous population growth, we explore two main themes: how urbanization affects efficiency of the growth process and how growth affects patterns of urbanization. Localized information spillovers promote agglomeration and human capital accumulation and fosters endogenous growth. Individual city sizes grow with local human capital accumulation and knowledge spillovers; and city with empirical evidence. We analyze whether local governments can successfully internalize local dynamic externalities. In addition, we explore how growth involves real income differences across city types and how urbanization can foster income inequality.