当然，但谁有精力呢?区位对能源领域知识转移的重要性

Environment & Natural Resources eJournal Pub Date : 2011-11-01 DOI:10.2139/ssrn.1970437

J. Moore, Daniel K. N. Johnson, Kristina M.L. Acri née Lybecker

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引用次数: 5

摘要

我们使用了超过25万条美国专利引文，测试了能源领域的知识转移是否对距离敏感，以及这种敏感性是否随着时间的推移而改变。控制发明人、受让人和审查员的自我引用，多元回归分析表明，物理距离对溢出效应的影响随着时间的推移而变得越来越不重要。

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Sure, but Who has the Energy? The Importance of Location for Knowledge Transfer in the Energy Sector

Using over 250,000 U.S. patent citations, we test whether knowledge transfers in the energy sector are sensitive to distance, and whether that sensitivity has changed over time. Controlling for self-citation by inventor, assignee and examiner, multivariate regression analysis shows that physical distance is becoming less important for spillovers with time.

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Environment & Natural Resources eJournal

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