We study an experimental market in which the structure of the information flows is endogenized. When making an offer, traders choose not only the price at which they are prepared to trade, but also the subset of traders they want to inform about the offer. This design allows for two extreme...

A general equilibrium model is considered with multiple divisible and multiple indivisible commodities.In models with indivisibles it is always assumed that an indivisible commodity, called money, is present that is used to transfer the value of certain amounts of indivisible goods.For these...

We study the structure of markets when traders are given the opportunity to create their own market, as on the internet.On the internet, public exchanges have in many cases been replaced by private exchanges.We use experiments to investigate possible reasons for the failure of public...

The tensions between books and book markets as expressions of culture and books as products in profit-making businesses are analysed and insights from the theory of industrial organisation are given.Governments intervene in the market for books through laws concerning prices of books, grants for...

This paper introduces optimal competition: the best form of competition in an industry that a competition authority can achieve under the information constraint that it cannot observe firms' effciency levels.We show that the optimal competition outcome in an industry becomes more competitive as...

In this paper we consider a general equilibrium model with a finite number of divisible and indivisible commodities.In models with indivisibilities it is typically assumed that there is only one perfectly divisible good, which serves as money.The presence of money in the model is used to...

Abstract: The effects of the HIV/AIDS epidemic on fertility in Africa remains ill understood. To align the contrasting findings of recent empirical research, we develop a portfolio model that captures the potential trade-off between "quantity" and "quality" of offspring. According to this...

Abstract: In this note we sketch a dynamic framework within which the discussion on the macro economic effects of climate change take place. The problem setting is characterized by scientific uncertainties about the development of climate, potential large economic losses and human beings having...

This paper constructs an equilibrium model of entrepreneurial innovation where individuals differ in their attitude toward uncertainty.Unlike previous models of innovation, the firm-formation process is endogenous.An entrepreneur, who owns residual profits, utilizes an uncertain technology and...

Abstract: Economics seems largely based on the assumption that monetary incentives improve performance. By contrast, a large literature in psychology, including a rich tradition of experimental work, claims just the opposite. In this paper we present and discuss a set of experiments designed to...