International Technology Spillovers and Growth over the Past 142 Years: The Role of Genetic Proximity
提出基因邻近性（除地理邻近性和进口外）是促进国际知识传播的因素，利用1870-2011年31个国家的数据，发现基因邻近性和进口对知识传播重要，且知识溢出具有永久增长效应。
This paper suggests genetic proximity, in addition to geographic proximity and imports, as a factor facilitating international knowledge transmission, where knowledge is measured as the stock of knowledge as well as research intensity to allow for the possibility that international knowledge spillovers have permanent productivity growth effects. Using data for 31 countries with diverse development paths over the period 1870–2011, the results show that genetic proximity and imports are important in facilitating knowledge transmission, and that knowledge spillovers have permanent growth effects.