In a recent paper in The Journal of Monetary Economics, Michelacci and Zaffaroni (2000)estimate long memory parameters for GDP per capita of 16 OECD countries. In this note weargue that these estimations are questionable for the purposes of clarifying the time seriesproperties of these data...

We integrate two workhorse models in economics: The monopolistic competition model of Dixit and Stiglitz and the search unemployment model of Pissarides. Many results of the original models survive. New results concerning the effects of changes in labour (goods) market parameters on goods...

Based on the empirical findings achieved in a comparative research,involving 40 innovation policy instruments in 11 European regions, thispaper exposes the claim for a new innovation policy paradigm andproposes a shift in rationale and in broad orientations for innovationpolicy, addressing SMEs...

This paper investigates whether the inherent non-stationarity of macroeconomic time series is entirely due to a random walk or also to non-linear components. Applying the numerical tools of the analysis of dynamical systems to long time series for the United States, we reject the hypothesis that...

This paper is a preliminary attempt to map the changing tastes for works of art as manifested in the prices of paintings sold at auction. There are two main goals in this work: first, to describe a space in which we can represent the work of different artists; and second, to describe how...

This paper models price movements in the market for fine art. Consumers of art are assumed to value art for its own sake, but are also subject to externalities in consumption whereby the utility of consuming the work of a painter is affected by the consumption choices of other consumers of art....

The paper investigates whether Internet experiments are an appropriate alternative to traditional laboratory experiments. For an economic experiment of individual decision making results obtained over the Internet are compared to results obtained in the laboratory using exactly the same...

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Computer use is mainly associated with skilled, high-wage workers. Furthermore, the introduction of computers leads to upgrading of skill requirements. This suggests that the computer requires certain skills to take full advantage of its possibilities. Empirical findings, however, suggest that...

This paper discusses recent attempts to codify knowledge through the development of expert systems in several different contexts. This paper argues that in the context of expert systems there is some knowledge that can be codified (turned into an expert system essentially in its entirety), some...