How Special Is the Special Relationship? Using the Impact of U.S. R&D Spillovers on U.K. Firms as a Test of Technology Sourcing
检验了“技术获取”假说，发现1990年在美国设立大量发明家的英国企业，在随后十年中从美国研发存量增长中获益更多，美国研发使2000年英国制造业全要素生产率提高约5%。
We examine the “technology sourcing” hypothesis that foreign research labs located in the U.S. tap into U.S. R&D spillovers and improve home country productivity. We show that U.K. firms that established a high proportion of inventors based in the U.S. by 1990 benefited disproportionately from the growth of U.S. R&D stock over the next ten years. We estimate that U.S. R&D during the 1990s was associated with 5 percent higher Total Factor Productivity for U.K. manufacturing firms in 2000 (about $13 billion), with the majority of benefits accruing to firms with an innovative presence in the U.S.