Inwestycje sa waznym zrodlem rozwoju przedsiebiorstw i gospodarki. Zaleza one od wielu czynnikow. Wedlug wiekszosci glownych szkol ekonomicznych istotnym czynnikiem wplywajacym na poziom i dynamike nakladow inwestycyjnych jest polityka monetarna. Glownym celem opracowania jest zbadanie wplywu...

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...

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...

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...

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...

English Abstract: The development of the Polish corporate bonds market resulted from changes on the supply side. When the Lehman Brothers went bankrupt, Polish entrepreneurs realized that financing their companies' operations only with the use of credit, even if contracted from different...

I estimate a single factor model of Swiss exchange rates during World War I for five of the primary belligerents: Britain, France, Italy, Germany, and Austria-Hungary. At the outbreak of the war these nations suspended convertibility of their currencies into gold with the promise that after the...

Polish Abstract: Artykuł prezentuje wyniki hedonicznej analizy cen usługi dostawy Internetu, uzależniającej cenę usługi od szeregu istotnych z punktu widzenia konsumenta i dostawcy usługi charakterystyk (np. szybkości połączenia, długości związania umową). Do analizy użyto...