本文主要利用行政院主計處1996至2001年之工商普查資料，來分析臺灣製造業產業地理集中水準、變動情形以及影響產業地理集中重要經濟因素。我們發現產業地理集中水準以及跨期變化情形，會因產業特性之不同而有所差異。例如，產業地理集中程度較高的產業，分工程度較高；高科技產業的產業聚集程度不見得比較高，但是卻呈現出快速且穩定的聚集現象。迴歸分析的結果發現，產業地理集中程度會受到同產業與相關產業的規模經濟、分工程度，以及外包容易程度等因素所影響。特別的是，相關產業的就業人數增加，會產生競爭、排擠效果，反倒對產業地理集中產生負向的影響。

In this paper, we provide empirical insights into the level and determinants of geographic concentration using 1996 and 2001 Taiwan manufacturing census data. We found that geographic concentration and its changes are significantly diverse with different industry characteristics. For example, more geographically concentrated
industry gets more disintegration and high-tech industry geographic concentration level growths rapidly and regularly. Moreover, we found that the geographic concentration level is determined by own-industry and related-industry scale economies, disintegration and the ease of subcontract. Especially, the increase of related-industry employments will decrease the geographic concentration level.