The standard method when analyzing the problem of cooperation using evolutionary game theory is to assume that people are randomly matched against each other in repeated games. In this paper we discuss the implications of allowing agents to have preferences over possible opponents. We model...

A contingent valuation method is applied to study subjects' willingness to pay for originals when illegal copies are freely available. The subjects consisted of 234 Swedish undergraduate students from the "computer generation". Only 2% of the "normal" (and 0% of the "elite") students were...

Which strategy-proof nonbossy mechanisms exist in a model with a finite number of indivisible goods (houses, jobs, positions) and a compensating perfectly divisible good (money)? The main finding is that only a finite number of distributions of the divisible good is consistent with...

This paper investigates the pricing bias in the Swedish OMX-Index Option market and how a stochastic volatility affects European call option prices. The market is purely European and without dividends for the period studied. A CIR square-root process for the volatility is estimated with...

This paper explores methods to study trust. Answers to survey questions and choices in a trust game are obtained from subjects approached by mail executing their tasks at home as well as from classroom subjects. No discernable differences between the results obtained by these methods were...

We develop an alternative test of the `German view' - that a reduction in government consumption may lead to an immediate private consumption boom - derived from an open-economy permanent income model. In our empirical study we find, in accordance with the `German view', that an anticipated...

Recently, it has been suggested that the effect of government expenditure on private consumption is dependent on the level of public debt. More specifically, a higher public debt implies a less Keynesian response in private consumption. In this paper we investigate if this theory is supported by...

The growing interest in management of credit risk and estimation ofdefault probabilities has given rise to a range of more or lesselaborate credit risk models. Hall and Miles (1990) suggests an approachof estimating failure probabilities based solely on stock market prices.The approach has the...

The level of safety investments can be argued to vary between sectors. The safety investments legally required and carried out within the railway sector indicate that there is a higher implicit value in preventing a fatality within the rail sector than within the road sector. The literature...

This paper introduces a new approach of testing capital structure hypothesis on a firm specific level. Johansen’s procedure for cointegration testing is employed to test theories of optimal capital structure. The sample covers a firm with unique properties, Hufvudstaden, during the period 1938...