Recent years have seen an unprecedented increase in the provision of R&D tax incentives. A growing empirical literature … suggests that R&D tax incentives are instrumental in raising domestic R&D activity. In policy debates this finding is often … interpreted to lend support to the notion that R&D tax incentives increase national welfare by internalizing knowledge spillovers …

In medieval times, most people identified with religious values and aggregate income and productivity grew at glacier … speed. In the 20th century, religion played a much lesser role in daily life and income and productivity grew at high and … worldly pleasures and aggregate productivity takes off. An extension of the basic model investigates the Protestant …