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...

This paper explores how changes in macroeconomic uncertainty have affected the decision to reply to the European Central Bank’s Survey of Professional Forecasters (ECB’s SPF). The results suggest that higher (lower) aggregate uncertainty increases (reduces) non-response to the survey. This...

Human judgments are systematically affected by various biases and distortions. The main goal of our study is to analyze the effects of five well-documented behavioral biases—namely, the disposition effect, herd behavior, availability heuristic, gambler’s fallacy and hot hand fallacy—on the...

This study introduces a novel index based on expectations concordance for explaining stock-price volatility when novel events that are each somewhat unique cause unforeseeable change and Knightian uncertainty in the process driving outcomes. Expectations concordance measures the degree to which...

The goal programming (GP) is a well-known approach applied to multi-criteria decision making (M-DM). It has been used in many domains and the literature offers diverse extensions of this procedure. On the other hand, so far, some evident analogies between M-DM under certainty and scenario-based...

Aim/purpose - The aim of this paper is to present a strategy that allows companies to recover from disasters, when creating a supply chain. Furthermore, it also shows the impact on the company’s resources that are used in the implementation of the strategy in case of small and big disasters....

Within the framework of a laboratory experiment, we examine to what extent algorithm aversion acts as an obstacle in the establishment of robo advisors. The subjects had to complete diversification tasks. They could either do this themselves or they could delegate them to a robo advisor. The...