This paper highlights a previously unnoticed property of commonly-used discrete choice models, which is that they feature parallel demand curves. Specifically, we show that in additive random utility models, inverse aggregate demand curves shift in parallel with respect to variety if and only if...

Die Situation von Kleinanlegern* auf dem Finanzmarkt ist in Deutschland weitgehend unerforscht. Mit Blick darauf beleuchtet der folgende Beitrag auf Grundlage der Ergebnisse eines qualitativen soziologischen Forschungsprojekts drei wesentliche Dimensionen ihrer Anlagepraxis. Es geht erstens um...

In this paper, we propose a game in which each player decides with whom to establish a costly connection and how much local public good is provided when benefits are shared among neighbors. We show that, when agents are homogeneous, Nash equilibrium networks are nested split graphs....

Das verbraucherpolitische Instrument Verbraucherberatung soll die asymmetrische Informationsverteilung zwischen Verbrauchern und Unternehmen abbauen und Vertrauen in Märkte schaffen. Bei dieser Aufgabenstellung wird vernachlässigt, dass Verbraucherberatung selbst durch die asymmetrische...

If the demand under price dispersion is formed by consumers with zero search costs and consumers with positive search costs, the law of one price holds at the equilibrium price level, where the lowest willingness to pay between consumers with zero search costs meets the willingness to accept or...

The analysis of the propensity to search under price dispersion discovers the identity of the optimal consumption-leisure choices in the model of optimal search and in the classical model of individual labor supply when the propensity to search is unimportant. However, the vigorous propensity to...

Considerable evidence shows that people have optimistic beliefs about future outcomes. I present an axiomatic model of wishful thinking (WT), in which an endowed alternative, or status quo, influences the agent's beliefs over states and thus induces such optimism. I introduce a behavioral axiom...

I provide axiomatic foundations for a model of taste uncertainty with endogenous learning through consumption. In this setting, uncertainty is over an unobservable, subjective state space. Preference over lottery–menu pairs is sufficient to identify the state space and the learning process. In...