With credence goods consumers cannot judge actual quality neither before purchase - ex ante - nor after purchase - ex post -. Trust has to replace own examination and verification. Applying Choquet-Expected Utility theory, a general model of credence goods is developed which takes the problem of...

We consider a privately informed issuer which holds a portfolio of assets that can be sold to raise cash, where the fractions of assets sold serve as a multidimensional signal. If good news about one asset is good news for the others, then there is a unique equilibrium that satisfies the...

In this paper we show that the equilibrium in the Stiglitz-Weiss model (Stiglitz and Weiss, 1981) is a two-interest rate equilibrium. For this we use the true return-function for banks shown by Arnold (2005), the assumption of Bertrand competition and make a consideration for a discrete number...

Der Markt für Riester-Produkte ist intransparent. In diesem Artikel wird gezeigt, warum die Informationsasymmetrien zu Lasten der Verbraucher nicht durch den Markt aufgelöst werden können, sondern nur durch staatliche Vorgaben. Eine empirische Erhebung verdeutlicht, dass auch die...

With credence goods consumers cannot judge actual quality neither before purchase - ex ante - nor after purchase - ex post -. Trust has to replace own examination and verification. Applying Choquet-Expected Utility theory, a general model of credence goods is developed which takes the problem of...

Entrepreneurs starting new firms face two sorts of asymmetric information problems. Information about the quality of new investments may be private, leading to adverse selection in credit markets. And, entrepreneurs may not observe the quality of workers applying for jobs, resulting in adverse...

Within a framework of debt renegotiation and a priori private information, what is the role of outside and inside collateral? The literature shows that unobservability of the project’s returns implies that the high-risk borrower is more inclined to pledge outside collateral than is the...

Rothschild and Stiglitz (1976) show that there need not exist a competitive equilibrium in markets with adverse selection. Building on their framework we demonstrate that externalities between agents − an agent's utility upon accepting a contract depends on the average type attracted by the...

The market for state-sponsored private pension schemes in Germany ("Riester-Rente") is not transparent. This article explains why the problem of asymmetric information, which disadvantages consumers, needs governmental regulation as the problems cannot be resolved by the market. A survey shows...

What are the welfare effects of a policy that facilitates for insurance customers to privately and covertly learn about their accident risks? We endogenize the information structure in Stiglitz's classic monopoly insurance model. We first show that his results are robust: For a small information...