In this paper we present an inter-temporal optimization problem of a representative R&D firm that simultaneously invests in horizontal and vertical innovations. We posit that learning-by-doing makes the process of quality improvements a positive function of the number of existing technologies...

In this paper we analyse a growth model that includes environmental and economic variables as well as technological progress under different informational constraints on the behavior of economic agents. To simulate the informationally constrained economy, we make use of the non-linear model...

We analyze how different budgetary rules affect the stability of an economy in a basic endogenous growth model with public debt and a state-dependent consumption tax rate. We show that a discretionary policy implies that the government violates its inter-temporal budget constraint along a...

This paper combines horizontal and vertical innovations to build an endogenous growth model that allows for structural change. Older technologies are continuously replaced by newer ones due to creative destruction and new technologies appear as a result of horizontal innovations and as a result...

In this paper we study the impact of environmental pollution in an endogenous growth model with endogenous structural change. The paper allows for both horizontal and vertical innovations where newer technologies are less polluting compared to older ones. The analysis shows that the presence of...

Empirical studies analyzing the effect of climate change on output growth sometimes neglect economic variables. This yields a biased picture of the growth process and does not represent a good approximation of the true data generating process. Thus, the question arises how valid the results are...