The econometric literature offers various modeling approaches for analyzing micro data in combination with time series of aggregate data. This paper discusses the estimation of a VAR model that allows unobserved heterogeneity across observation unit, as well as unobserved time-specific...

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...

Celem opracowania jest analiza zasadnosci wykorzystania metody Valua at Risk w szacowaniu ryzyka zwiazanego z inwestycja w spolki branzy metalurgicznej. W artykule przedstawiono sposob konstruowania modelu, rozne metody jego estymacji oraz ich wady i zalety. W czesci badawczej artykulu...

The paper presents empirical results on the discounting of delayed payoffs which show that: (1) the best approximation of the discounting process is a hyperbolic function, (2) (both animals and humans) can reverse their preferences in time. The article presents theoretical conditions on the...

The paper presents results of own empirical research conducted on a random sample of 323 enterprises localized in małopolskie voivodeship in the first half of the year 2007. The period of 3 years after the accession of Poland to the European Union allowed to preliminary evaluation of the...

The paper elaborates on competitiveness of Polish enterprises facing the European economic integration. The Author tries to show the impact of the accession of Poland to the European Union on the development of Polish enterprises as far as their competitiveness is concerned. The paper includes...

This article aims to present and analyze the European Union policy in favour of entrepreneurship as well as small and medium-sized enterprises (so-called fifth multiannual program) as well as the most important directions of activities of the Community for Entrepreneurship and Innovation in the...

The paper elaborates on the flexibility of Polish enterprises facing the European economic integration. The Author tries to show the impact of the accession of Poland to the European Union on the development of Polish enterprises as far as their flexibility is concerned. The paper includes...