This paper presents marginal effective tax rates (METRs) for a number of physical and intangible assets and for a number of funding sources. The assets include machinery, buildings, inventories, investments in short-lived R&D (that is, investments whose returns last only a few years) and...

We study the relationships between corporate R&D and three components of public science: knowledge, human capital, and invention. We identify the relationships through firm-specific exposure to changes in federal agency R\&D budgets that are driven by the political composition of congressional...