We develop a model of endogenous skill-biased technical change in developing countries. The endogenous response to a rise in skill supply counters the traditional substitution effect and dampens its role in reducing wage inequality. The model re-enforces consensus estimates of the elasticity of...

We develop a model of endogenous skill-biased technical change in developing countries.  The model reconciles wildly dispersed existing estimates of the elasticity of substitution between more and less educated workers.  It also produces an estimating equation for the elasticity, which allow...

We establish the formal link between the separability of inputs in a production function and the aggregate elasticity of demand for those inputs. This validates the implicit assumption used when calculating an aggregate elasticity with aggregated input prices and provides a practical approach to...