本研究由空間觀點切入，以1991年至2001年的臺灣工商及服務業普查與戶口及住宅普查資料，利用探索式空間資料分析與空間計量經濟方法，探討空間外溢效應對經濟成長的影響。研究結果顯示：1) 傳統非空間模型，忽略空間要素，導致其估計結果有所偏誤；2) 支持 σ 收斂與 β 收斂假說，區域勞動生產力不均程度逐漸縮小，且起始生產力較低的區域，後續經濟成長速度較快；3) 空間延遲模型估計結果表明空間外溢效應有顯著的影響，鄰近經濟成長率高的區域，有利於提升本身的經濟表現。

This research attempts to explore the regional economic convergence from
spatial perspective. Using industry, commerce and service census and population and housing census data between 1991-2001, we investigate the effects of spatial spillovers on labor productivity growth with exploratory spatial data analysis and patial econometric methods. The empirical results indicate three conclusions. First, the non-spatial models applied to analyze β-convergence suffer from a misspecification due to omitted spatial dependence. Second, there are α-convergence
and β-convergence. Inequality of regional labor productivity between townships declined from 1991 to 2001. Poor townships displayed faster economic growth rates than wealthy ones. Last, the estimation results of spatial lag models indicate spatial spillover effects matter for regional economic growth. Regions can significantly benefit from high economic growth of neighboring regions.