In this paper, we extend the Romer (1990) model in two ways. First, we include energy consumption of intermediates. Secondly, intermediates become heterogeneous due to endogenous energy saving technical change. However, aggregate effective capital is still subject to endogenous technical change...

Internet, the fastest growing communications medium or consumer electronic technology, doubles its size every six months. Within a few years the number of citizens in Cyberspace will outnumber all but the largest nations. The borderless world of the Internet extends its reach to all corners of...

The paper analyzes the use of a Multi Agent System for Model Based Diagnosis. In a large dynamical system, it is often infeasible or even impossible to maintain a model of the whole system. Instead, several incomplete models of the system have to be used to detect possible faults. These models...

EC research programmes are promoting collaborative scientific research in general and “integrated Internet-based collaborations” in particular. New intellectual property rights (IPRs) are being developed to ensure the “intellectual property” of newly developed scientific and...

There is growing evidence of international divergence in the performance of newindustries. While the United States is at the forefront of the recent revolution ininformation technologies, European economists and policy makers are concerned thatEurope is falling behind with negative implications...

In this paper we present a model that addresses the issue of the uneven distribution ofemployment opportunities over low- and high-skilled workers in a context of skill-biasedendogenous technical change. In our model, technical change consists in part of productinnovation. There is also process...

This paper investigates whether the inherent non stationarity of the US macroeconomic time series may be entirely explained by simple stochastic non linear models (like GARCH). Applying the numerical tools of the analysis of dynamical systems to long time series for the US, we reject the...

This paper presents a simple evolutionary model to study the diffusion patterns of product innovations for consumer goods. Following a Veblenian theme, we interpretconsumption as a social activity constrained by social norms and equality of opportunity. Societies that allow for more behavioral...

Health care is in need of innovation on many strands. Patient-centered care appears to be the key to the realization of the main objectives: service quality, cost reduction, access, patient satisfaction and the quality of working life. Innovation, and more precisely, the diffusion and...

In this paper, we model the impact of networks on knowledge growth in an in-novatingindustry. Specifically, we compare two mediums of knowledge exchange;random interaction, and the case in which interaction occurs on a fixed architec-ture.In a simulation study, we investigate how the medium of...