This study presents a model in which firms invest in research and development (R&D) to generate innovations that increase their underlying profitability and invest in physical capital to produce output. Estimating the model using a method of moments approach reveals that R&D expenditures...

The effect of financing frictions on firm productivity growth is not well understood. Using a model we show that a rise in financial frictions leads to increased sensitivity of productivity growth to the use of external finance. We test this prediction using a large dataset of mostly private...