We examine the two-level and the three-level nested four factor Constant Elasticity of Substitution production functions, where labor is disaggregated into skilled and unskilled labor and the capital stock into structures and equipment capital. We estimate inter-factor substitution elasticity...

In this paper, we estimate a long run supply-side system incorporating a CES production function with time-varying factor-augmenting technical progress for the euro area over the period 1970-2005. We find that the elasticity of substitution lies below unity at 0.7, that labor-augmenting...

Using a normalized CES function with factor-augmenting technical progress, we estimate a supply-side system of the US economy from 1953 to 1998. Avoiding potential estimation biases that have occurred in earlier studies and putting a high emphasis on the consistency of the data set, required by...