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...

English Abstract: Growth in the European Union since the outbreak of the global financial crisis is slower (1) than before the crisis, (2) than the trend would indicate, (3) than forecast and (4) than in the United States. The factors driving its weakness lie more on the supply side than the...

Process of globalisation defines the new frontiers, leaving more importance to the territory. In the context of a rapidly changing international environment it is of no small importance to ask some question about the present situation in the bordering regions, their foreseeable evolution, both...

Labour market situation with high persistent unemployment includes undertaking empirical and theoretical researches on the factors determining labour demand. In the present paper an attempt at describing the factors determining labour demand based on enterprises’ opinions in monthly business...