The literature suggests that tax rates on mobile activities should fall to zero. Intellectual property is very mobile and has grown in importance. Firms can use intellectual property to shift income offshore and reduce their corporate income tax liability. Yet most intellectual property is held...

We examine the 'home bias' of international knowledge spillovers as measured by the speed of patent citations (i.e. knowledge spreads slowly over international boundaries). We present the first compelling econometric evidence that the geographical localization of knowledge spillovers has fallen...

The research activities of multinational firms is increasingly mobile raising concerns about displacement of high-skilled employment in headquarter countries. We estimate of the impact offshoring inventors has on firms' use of inventors at home using within firm variation across industries. We...