This paper uses a new cross-country cross-industry dataset on investment in tangible and intangible assets for 18 European countries and the US. We set out a framework for measuring intangible investment and capital stocks and their effect on output, inputs and total factor productivity. The...

Using a wide range of models we document a protracted fall in the natural (or neutral) rate of interest in advanced economies, driven by ageing, waning productivity growth, a rise in mark-ups, and a surge in risk aversion in the wake of the global financial crisis. While our neutral rate...

Changes in labor productivity have been a source of puzzlement and paradoxical results for economists. We suggest that puzzles and paradoxes vanish once two simple regularities are properly acknowledged. Okun and Verdoorn's Laws explain 87 percent of all the variations in labor productivity....