Statistics is often difficult for students, since it requires coordination of quantitative and graphical insights with mathematical ability. Furthermore, ever-increasing special knowledge of statistics is demanded, since data of increasing complexity and size need to be understood and analyzed....

We identify some of the requirements for document integration of software components in statistical computing, and try to give a general idea how to cope with them in an implementation.

Individuals differ in behavior since neither their ethical constraints, their attitudes towards risk, nor their analytical talents are the same. In an experimental prephase we tried to elicit such differences by confronting participants with suitable one-person-decision problems. In the main...

Die Anwendung der Strukturgleichungsmethodologie im Marketing geht im allgemeinen von homogenen Daten bei der Analyse aus, sofern nicht apriori Informationen über Unterschiede in den Daten vorliegen. Latente Strukturen in den Daten bleiben jedoch meist unbeachtet. Dieser Beitrag befaßt sich...

In this note we study a very simple trial & error learning process in the context of a Cournot oligopoly. Without any knowledge of the payoff functions players increase, respectively decrease, their quantity by one unit as long as this leads to higher profits. We show that despite the absence of...

The efficient market hypothesis implies that asset prices cannot be cointegrated. On the other hand, arbitrage processes prevent prices of fundamentally related assets from drifting far away. An attractive model that reconciles these two conflicting facts is the nonlinear error correction...

Experimental studies of risk and time-preference typically focus on one of the two phenomena. The goal of this paper is to investigate the (possible) correlation between subjects' attitude to risk and their time-preference. For this sake we ask 61 subjects to price a simple lottery in 3...

Most models of labor markets and (un)employment neglect how competition among firms or sectors of the economy affects their hiring of workers and working times. Our approach pays special attention to such effects by proposing a complex stage game where firms invest in capital equipment before...