In this paper, we present a new version of the OPTCON algorithm for the optimal control of nonlinear stochastic systems with special reference to econometric models. It delivers approximate numerical solutions of optimum control problems with a quadratic objective function for nonlinear...

This paper extends economic models of optimal resource extraction by integrating biodiversity indicators. So far, biodiversity was only implicitly treated in models of multiple renewable resources, or it was considered in terms of (genetic) diversity or species richness only, but not in terms of...

We examine within a life-cycle set-up the choice of health and retirement. Health care contributes to a reduction in both mortality, determining the need to accumulate retirement wealth, and in morbidity, determining the disutility of work. The retirement age affects health through the value of...

We consider an economy in which competitive firms use three technologies for electricity production: pollutive fossils, intermittent renewables like wind or solar, and storage. We determine optimal subsidies for renewables and storage capacities when carbon pricing is imperfect. This policy is...

This paper provides the proofs to the analysis of a continuous time matching model with saving in Bayer and Wälde (2010a). The paper proves the results on consumption growth, provides an existence proof for optimal consumption and a detailed derivation of the Fokker-Planck equations.

One important feature of tax reforms, in particular corporate tax reforms, is the uncertainty surrounding them. Are they going to be permanent or are they likely to be withdrawn by the subsequent government? The expected duration of the reform is important because it affects households' economic...

We develop a general equilibrium model of earnings, income and wealth heterogeneity in continuous time. We extend existing analytical and numerical methods to solve the model. We calibrate the model to U.S. data and find that stochastic interest rates provide a mechanism to link earnings, income...

In recent decades, many countries have experienced suburbanization processes in metropolitan areas that have lead to an increase in urban sprawl by creating a growing polarity between newly formed satellite communities and the central urban area. More than before, work and residence location...

The increase of the share of renewable energy in total energy production is a stated goal of environmental and industrial policy in many developed countries. Governments adopt regulation to support the investment into renewable energy infrastructure, in particular in power generation. Two main...

Through the progress of communication technology, the mobile services have broughtlots of benefits for our daily lives. However, with the recent advances in cellular communications and new systems being deployed alongside existing ones, an emerging question aboutwhether there still is...