Thinking outside the box: The cross-border effect of tax cuts on R&D
研究一国降低知识产权企业所得税（专利盒制度）如何影响其他国家的企业研发活动，发现跨境效应取决于知识产权与研发活动是否必须同地，无此要求时增加他国专利产出，有要求且搬迁成本低时则减少。
We analyze how a reduction of the tax rate on corporate income from intellectual property (IP) in one country, known as a patent box regime, affects corporate R&D activity in other countries. Combining data on patents and multinational corporation networks, we show that the cross-border effect of tax policy changes depends on whether co-location of the IP and the underlying R&D activity is required. Patent boxes without such a requirement increase patent output in other countries. Patent boxes with such a requirement reduce patent output abroad but only when relocation costs for R&D activity are small.