This paper suggests that skill accumulation through past work experience, or "learning-by-doing", can provide an important propagation mechanism for initial shocks, as the current labor supply affects future productivity. Our econometric analysis uses a Bayesian approach to combine micro-level...

This paper suggests that skill accumulation through past work experience, or "learning-by-doing" (LBD), can provide an important propagation mechanism in a dynamic stochastic general-equilibrium model, as the current labor supply affects future productivity. Our econometric analysis uses a...

"This paper assesses biases in policy predictions due to the lack of invariance of "structural'' parameters in representative-agent models. We simulate data under various fiscal policy regimes from a heterogeneous-agents economy with incomplete asset markets and indivisible labor supply....