This paper analyzes optimizing decisions of a monopolist under uncertainty. The aspiration model directly accounts for asymmetric risk preferences with respect to downside risk. The optimal output (price) of a risk-averse monopolist facing marginal cost uncertainty will not exceed that of his...

By studying the effect of different patterns of demand in an evolutionary selection model this paper shows how product differentiation reduces competitive selection pressure and thus increases the chances for the coexistence of firms. With the example of a duopoly it shows that: (1) a monopoly...

In this paper we develop a long run macroeconomic model for Austria to simulate the effects of aging on employment, output growth, and the solvency of the social security system. By disaggregating the population into six age cohorts and modelling sex specific participation rates for each cohort,...