This paper demonstrates that the steady-state solution of the optimal-growth problem in Romer's (1990) model of endogenous technological change is globally saddle-point stable. Surprisingly, the proof of this result is trivial. Interest in the optimal growth path is justified by the fact that...

We analyze the transitional dynamics of an endogenous growth model with physical capital, human capital, and R&D. We provide conditions for the existence of a feasible steady state equilibrium with positive long-run growth. For appropriate parameter values, the transitional dynamics of the model...

People go to school and firms do R&D. These activities result in human capital accumulation and new ideas and technologies which make economies grow. We try to capture the interaction between human capital and R&D by allowing for endogenous human capital accumulation in an economy where the...

This paper quantifies the welfare costs of inflation in an endogenous growth setup where transitional dynamics are taken into account. We report much smaller costs than in the litterature.

The AK growth model is a standard endogenous model. This paper first solves the social planner's problem in this model and shows that the steady state is the only solution to this model. The paper then considers several generalizations of the AK model on the side of technology. Unlike the basic...

This paper applies the method of Barro and Sala-i Martin to the stability analysis of the Romer model and verifies sufficient conditions for its application.

We analyze the transitional dynamics of an endogenous growth model with heterogeneous consumption goods. In this model, convergence is driven by two different forces: the diminishing returns to capital and the growth of the relative price between physical and human capital. Because this second...