This paper uses a simple model of mean-variance asset pricing with transactions costs to analyze one of the main empirical phenomena in stock market competition in the last years, the decrease of transaction costs. We endogenize transactions costs as variables strategically influenced by stock...

This paper investigates empirically the illiquidity of majority blocks of shares in the context of a search model of block trades. The search model incorporates two aspects of illiquidity, or search frictions. First, upon a liquidity shock, the incumbent blockholders may be forced to sell to a...

Die heute verfügbaren Zahlungssysteme erlauben aufgrund zu hoher Transaktionskosten und Bearbeitungszeiten keine sinnvolle Verrechnung von Kleinstbeträgen. Die Einzelabrechnung von Micropayments ist ökonomisch und technologisch ineffizient...

In the recent work of Dempster, Evstigneev and Taksar (2006) it has been shown that the von Neumann-Gale model of economic dynamics can serve as a convenient and natural framework for the analysis of questions of asset pricing and hedging under transaction costs. The present article focuses on a...

We revisit the apparent historical success of technical trading rules on daily prices of the Dow Jones index. First, we use the False Discovery Rate as a new approach to data snooping. The advantage of the FDR over existing methods is that it is more powerful and not restricted only to the best...

Municipal bonds trade in opaque, decentralized broker-dealer markets in which price information is costly to gather. Whether dealers in such a market operate competitively is an empirical issue, but a difficult one to study. Data in such markets is generally not centrally recorded. We analyze a...

A generalized correlated random walk is a process X_k of partial sums of random variables Y_j such that (X,Y) forms a Markov chain. For a sequence X^n of such processes where each Y^n_j takes only two values, we prove weak convergence to a diffusion process whose generator is explicitly...