In macroeconomic dynamic models the speed at which output converges to its steady state is of outstanding interest. Theoretical investigations usually focus on the asymptotic speed of convergence only. This procedure is, however, unnecessarily restrictive and hides important information. The...

The paper develops the Basic Climate Economic (BCE) model featuring the core elements of climate economics and climate policy. The BCE model incorporates fossil stock depletion, pollution stock accumulation, endogenous growth, and climate-induced capital depreciation. We first use graphical...

We develop a model to rationalize and examine so-called "research bubbles", i.e. research activities based on overoptimistic beliefs about the impact of this research on the economy. Research bubbles occur when researchers selfselect into research activities and the government aggregates the...

In this paper we analyze the implications of recycling for long-run economic development. In contrast to former approaches, we take explicit account of the circulation of matter in the economy. Building upon a Romer (1990) type growth model we consider virgin resources and recycled wastes as...

This paper studies the effects of distortionary taxes and public in- vestment in an endogenous growth OLG model with knowledge trans- mission. Fiscal policy affects growth in two respects: .rst, work time reacts to variations of prospective tax rates and modi.es knowledge formation; second,...

We analyze a multi-sector growth model with directed technical change where man-made capital and exhaustible resources are essen- tial for production. The relative profitability of factor-specific inno- vations endogenously determines whether technical progress will be capital- or...

An established result of the endogenous growth literature is that competitive equilibria in expanding-varieties models are suboptimal due to the rent-effect: monopolistic pricing drives the equilibrium quantity of each intermediate below the efficient level, implying that it is optimal to...

Computable general equilibrium models simulate the reaction of industries on carbon taxes. Their results differ strongly on the assumption of the underlying technologies. This paper compares two models and emphasizes the differences between their approaches to technology. The first model is the...

There is widespread concern that an international agreement on stringent climate policies will not be reached because it would imply too high costs for fast growing economies like China. To quantify these costs we develop a general equilibrium model with fully endogenous growth. The framework...

The paper develops an integrated baseline model to assess the trade-offs be- tween the natural environment and economic growth. Consumption growth is considered under welfare and sustainability aspects. The framework features capital accumulation and the sectoral structure of the economy as key...