著者
Murata Yasusada Nakajima Ryo Okamoto Ryosuke Tamura Ryuichi
出版者
Institute of Economic Research, Kyoto University
雑誌
KIER Discussion Paper
巻号頁・発行日
vol.763, 2011-03

We develop a new approach to localized knowledge spillovers by incorporating the concept of control patents (Jaffe, Trajtenberg and Henderson 1993) into the distancebased test of localization (Duranton and Overman, 2005). Using microgeographic data, we identify localization distance while allowing for cross-boundary spillovers, unlike the existing literature where the extent of localized knowledge spillovers is detected at the state or metropolitan statistical area level. We revisit the recent debate by Thompson and Fox-Kean (2005) and Henderson, Jaffe and Trajtenberg (2005) on the existence of localized knowledge spillovers, and find solid evidence supporting localization, even when finer controls are used.

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One form of knowledge spillover is intellectual property, and IP can be prone to localization. http://t.co/GVsitZF9nz

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