We provide industry-level estimates of the elasticity of substitution (σ) between capital and labor in the US economy. We also estimate rates of factor-augmentation. Aggregate estimates are produced using the same data. Our empirical model comes from the first-order conditions associated with a...

We use annual data on capital's share and relative factor prices from 35 US industries from 1960 to 2005 to test the induced innovation hypothesis. We derive, from a production function framework, testable implications for the effect of contemporaneous and lagged factor price ratios on capital's...

We provide industry-level estimates of the elasticity of substitution (?) between capital and labor in the US economy. We also estimate rates of factor-augmentation. Aggregate estimates are produced using the same data. Our empirical model comes from the first-order conditions associated with a...

We use annual data on capital’s share and relative factor prices from 35 US industries from 1960 to 2005 to test the induced innovation hypothesis. We derive, from a production function framework, testable implications for the effect of contemporaneous and lagged factor price ratios on...

We use annual data on capital´s share and relative factor prices from 35 US industriesfrom 1960 to 2005 to test the induced innovation hypothesis. We derive, from a productionfunction framework, testable implications for the effect of contemporaneous and lagged factorprice ratios on capital´s...

New estimates of an aggregate long-term production function for the post-war U.S. economy are reported. The results indicate that this long-term aggregate production function exhibits a slight but statistically significant increasing returns to scale. Since virtually all econometric growth...

This paper shows that because growth models in the tradition of Solow's and Romer's are framed in terms of production functions, they are equally subject to a criticism developed by, among others, Phelps Brown (1957), Simon (1979a), and Samuelson (1979). These authors argued that production...

We generalize the normalized Constant Elasticity of Substitution (CES) production function by allowing the elasticity of substitution to vary isoelastically with (i) relative factor shares, (ii) marginal rates of substitution, (iii) capital-labor ratios, or (iv) capital-output ratios. Ensuing...

This paper shows that because growth models in the tradition of Solow's and Romer's are framed in terms of production functions, they are equally subject to a criticism developed by, among others, Phelps Brown (1957), Simon (1979a), and Samuelson (1979). These authors argued that production...

This paper shows that because growth models in the tradition of Solow's and Romer's are framed in terms of production functions, they are equally subject to a criticism developed by, among others, Phelps Brown (1957), Simon (1979a), and Samuelson (1979). These authors argued that production...