关键词: 城镇化, 经济增长, 总体影响, 时空分化

Abstract: Abstract: There are substantial studies on China s rapid urbanization and its impact on economic development． An econometrical model is constructed in this paper to examine the impact of both population urbanization and space urbanization on economic development in China when controlling for investment and consumption，and regression estimates are made using panel data at provincial level． Results show that both population urbanization and space urbanization had a great boost to investment which in turn promoted economic growth，but had little effect on consumption． Since the new urbanization strategy was implemented in 2007，effects of population urbanization on economic growth have been considerably improved，especially via
consumption，while investment driven by space urbanization also has had much larger effects． Both population urbanization and space urbanization have promoted economic growth through investment in the Eastern Region，while in the Central and West Regions，population urbanization has had largely insignificant effects on economic growth． Although space urbanization did promote economic growth through investment，it was well offset by the inhibiting effects of consumption． Policy implications are discussed in the paper．

Keywords: Urbanization, Economic Growth, Overall Effects, Spatiotemporal Differentiation