A lot of regional studies cover classification of territorial units due to considering research problem. This approach examines territorial diversification of a phenomena, as well as spatial interactions. The occurrence of spatial dependence can reveal the processes of creating or extanding...

We examine the estimation problem for shape-restricted functions that are continuous, non-negative, monotone non-decreasing, and strictly concave. A sieve estimator based on bivariate Bernstein polynomials is proposed. This estimator is drawn from a sieve, a set of shape-restricted Bernstein...

In this paper we present a new approach to integration and cointegration. We show that a periodically correlated time series can be divided in a natural way into subseries that are integrated. Moreover, with high probability they are cointegrated. Therefore it is enough to show periodic...

A lot of regional studies cover classification of territorial units due to considering research problem. This approach examines territorial diversification of a phenomena, as well as spatial interactions. The occurrence of spatial dependence can reveal the processes of creating or extanding...

The book is divided into five parts. The essence of behavioural finance is presented in the first parts. Fuzzy generalizations of some mathematical concepts are presented in the second part. The impact of selected behavioural premises for imprecise estimation of expected return is described in...

The book is divided into five parts. The essence of behavioural finance is presented in the first parts. Fuzzy generalizations of some mathematical concepts are presented in the second part. The impact of selected behavioural premises for imprecise estimation of expected return is described in...

In the article two methods of estimating fractal dimension of financial time series are compared: variation method and method of area division. Both methods are used to estimate fractal dimension of chosen exchange rates time series.

Autor porownal 13 indeksow gieldowych rynku amerykanskiego, brytyjskiego oraz niemieckiego i okreslil ich wplyw na indeksy WIG i WIG20. Analiza pokazala, iz najwieksze znaczenie dla indeksow warszawskich mialy indeksy brytyjskie FTSE100 i FTSE250 oraz niemiecki DAX. Na relacje te wplynal tez...

Koszt kapitalu wlasnego jest kluczowa wielkoscia w ocenie wynikow przedsiebiorstw, jak i w procesie wyceny. Najczesciej wykorzystywane w praktyce metody szacowania kosztu kapitalu wlasnego wymagaja danych rynkowych. W sytuacji, gdy dane te nie sa dostepne, klasyczne modele wyznaczania wymaganej...