We analyze the structure of a society driven by power relations. Our model has an exogenous power relation over the set of coalitions of agents. Agents determine the social order by forming coalitions. The power relations determine the ranking of agents in society for any social order. We study...

In Tversky's (1969) model of a lexicographic semiorder, preference is generated by the sequential application of numerical criteria, by declaring an alternative x better than an alternative y if the first criterion that distinguishes between x and y ranks x higher than y by an amount exceeding a...

A dynamic model of the product lifecycle of (nearly) homogeneous durables in polypoly markets is established. It describes the concurrent evolution of the unit sales and price of durable goods. The theory is based on the idea that the sales dynamics is determined by a meeting process of demanded...

A dynamic microeconomic model is presented that establishes the price and unit sales evolution of heterogeneous goods consisting of successive homogenous product generations. It suggests that for a fast growing supply the mean price of the generations are governed by a logistic decline towards a...

We generalize the standard revealed preference exercise in economics, and prove a sufficient condition under which the revealed preference formulation of an economic theory has universal implications and when these implications can be recursively enumerated. We apply our theorem to two theories...

This paper offers a resolution to an extensively studied question in theoretical economics: which measure spaces are suitable for modeling many economic agents? We propose the condition of 'nowhere equivalence' to characterize those measure spaces that can be effectively used to model the space...

We examine the connection between discrete-time models of financial markets and the celebrated Black--Scholes--Merton (BSM) continuous-time model in which ''markets are complete." Suppose that (a) the probability law of a sequence of discrete-time models converges to the law of the BSM model and...

Innerhalb der ersten Förderphase ist von den Forschungsdatenzentren der Statistischen Ämter des Bundes und der Länder eine Dateninfrastruktur geschaffen worden, die umfangreiche wissenschaftliche Analysen amtlicher Mikrodaten aus allen Bereichen zulässt. In diesem Aufsatz wird insbesondere...

Verbraucherpolitische Maßnahmen müssen dort ansetzen, wo sich Verbraucher nicht selbst schützen können. Notwendige Bedingung für eine effektive Gestaltung verbraucherpolitischer Maßnahmen ist daher das Wissen um das tatsächliche Verhalten von Verbrauchern. Gerade im Bereich...