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Inventive Megaregions of the United States: Technological Composition and Location

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  • Breandán á hUallacháin

Abstract

Urban distinctiveness occurs in both technological and geographic space. This article explores spatial associations in the locational distribution of subcategories of patents across U.S. metropolitan areas. I converted patent counts to location quotients and used nonspatial methods to compare concentration levels of patents (Gini coefficients) and to identify groups of patents that tend to colocate (principal components analysis). The results show considerable variation in concentration levels and that nine groupings, entitled “technology components,” account for almost 68 percent of the variance in the distribution of the subcategories. Spatial analysis permits the exploration of spatial dependencies in each “technology component.” The results identify distinctive inventive regions that are termed inventive megaregions.

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  • Breandán á hUallacháin, 2012. "Inventive Megaregions of the United States: Technological Composition and Location," Economic Geography, Taylor & Francis Journals, vol. 88(2), pages 165-195, April.
    • Handle: RePEc:taf:recgxx:v:88:y:2012:i:2:p:165-195
    DOI: 10.1111/j.1944-8287.2012.01146.x
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    Cited by:

    1. Lingyue Li & Xiaohu Zhang, 2020. "Spatial Evolution and Critical Factors of Urban Innovation: Evidence from Shanghai, China," Sustainability, MDPI, vol. 12(3), pages 1-19, January.

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