In this paper, we investigate the adequacy of scaling, a method frequently used in estimation of standard deviation of stock returns. Scaling is based on the assumption that standard deviation is proportional to the square root of the length of the time interval of the sample (for example daily,...

This paper examines features of the Czech stock market’s development from 1997 to 2003 and attempts to unveil the macroeconomic consequences of stock-price development. The analysis of the stock market’s behavior supports a cautionary stance on the hypothesis of the efficient-market theory,...

This paper discusses recent claims made by Caplan (2000, 2001a, 2001b, 2001c, 2002, 2007) who argues that democracies produce bad policies as a result of voters' irrational beliefs. We start by outlining the motives which led Caplan to amend classic Public Choice in such a radical fashion. We...

The article characterizes current ideas on this issue and defines a global paradigm of a managerial system on the principle of living organisms. Using Kuhn's theory of science development, the article characterizes controversial attitudes to knowledge economy and defines a global paradigm for a...

Unternehmen müssen nicht immer Kollusionsabsichten verfolgen, wenn sie untereinander Informationen austauschen. Dieser Beitrag zeigt, daß bei Nachfrageunsicherheit auch strikt kompetitive Konkurrenten private Informationen bezüglich ihrer Nachfragebedingungen preisgeben. Dies läßt sich in...

Functional Signal plus Noise (FSN) time series models are introduced for the econometric analysis of the dynamics of a large cross-section of prices in which contemporaneous observations are functionally related. A semiparametric FSN model is developed in which a smooth, cubic spline signal...