Acta Universitatis Lodziensis. Folia Oeconomica: Recent submissions
Now showing items 3541-3560 of 4530
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Decomposition of time series on the basis of modified grouping method of Ward
(Wydawnictwo Uniwersytetu Łódzkiego, 1997)The trend of time series can change its direction. It is assumed that the time interval is divided into subintervals where the trend is given as particular linear function. The problem is how to divide the observation ... -
Application of the sequential probability ratio test to verification of statistical hypotheses
(Wydawnictwo Uniwersytetu Łódzkiego, 1997)The paper deals with some problems concerning the sequential probability ratio tests (SPRT) and their application to verifying simple and composite statistical hypotheses. Besides properties and examples of SPRT, there ... -
Characterization o f the orders in VARMA models
(Wydawnictwo Uniwersytetu Łódzkiego, 1997)In tins paper we present a method which is able to identify the degrees of the matrix polynomials that are involved in the VARMA models. This method is based on the difference between the ranks of certain matrices defined ... -
Switching regression models with non-normal errors
(Wydawnictwo Uniwersytetu Łódzkiego, 1997)In this paper two forms of switching regression models with non-normal errors are considered. The pseudo maximum likelihood method is proposed for the estimation of their parameters. Monte Carlo experiments results are ... -
Wstęp
(Wydawnictwo Uniwersytetu Łódzkiego, 1997) -
Aktywność zawodowa kobiet w Polsce
(Wydawnictwo Uniwersytetu Łódzkiego, 1997)The article analyzes economic activity of women in Poland on the basis of findings of the survey of population’s economic activity made by the Central Statistical Office in May 1994. The analysis shows a differentiated ... -
Zróżnicowanie wynagrodzeń a segmentacja polskiego rynku pracy
(Wydawnictwo Uniwersytetu Łódzkiego, 1997)Segmentation of the labour market lakes place when within it there exist isolated submarkets operating in different ways. The jobs offered on them are characterized by different working conditions and, thus, among others ... -
On the classification of observations in the switching regression
(Wydawnictwo Uniwersytetu Łódzkiego, 1997)The paper discusses the method of determining the sample division indicator for the switching regression model in case of two states generating values of the explained variable, which ensures the least risk of making a ... -
Zachowanie się rolników jako producentów i konsumentów (implikacje ekonomiczne i społeczne)
(Wydawnictwo Uniwersytetu Łódzkiego, 1985)The aim of this article is to analyze behavior of private farmers as producers and consumers and also show some economic and social consequences of this behavior. The author puts forward some suggestions concerning changes ... -
System informacyjny rachunkowości. Analiza, Struktury, Projekty
(Wydawnictwo Uniwersytetu Łódzkiego, 1985)This monographic is a result of long-term studies carried out by the research team from the Department of Accounting, University of Łódź, within the framework of an interministerial research project MR.I.30 , on ... -
Czynniki wywołujące zmiany w strukturze gospodarki
(Uniwersytet Łódzki, 1982)In the economic literature of the last few years there can be observed a considerable rise of interest in structural transformations. This interest was reflected in numerous theoretical works making an attempt at formulation ... -
Z problematyki genezy teorii trzech sektorów gospodarki
(Uniwersytet Łódzki, 1982)The author discusses the genesis of main theses of the theory of three sectors in the economy. The first part of the article contains general presentation of this theory developed in the thirties by A. G. B. Fisher, C. ... -
Kategoria pracy produkcyjnej i nieprodukcyjnej
(Uniwersytet Łódzki, 1982)In the article the author interprets the Marxist category of productive and unproductive work. She proves that from among three interpretations of this category uppearing in Marx' works, the interpretation being neutral ... -
Bayesian estimation of a shift point in a two-phase regression model
(Wydawnictwo Uniwersytetu Łódzkiego, 1997)The purpose of this paper is to carry out the Bayesian analysis of a two-phase regression model with an unknown break point. Essentially, there are two problems associated with a changing linear model. Firstly, one will ... -
Rozmieszczenie i funkcjonowanie usług bytowych i handlu detalicznego na wsi w woj. skierniewickim
(Wydawnictwo Uniwersytetu Łódzkiego, 1985)The article presents results of studies on location of the network of retail trade and consumer services with a special emphasis laid on its spatial concentration, demand for services and population's preferences as ... -
The distribution and parameters of the distribution of the quotient of random variables
(Wydawnictwo Uniwersytetu Łódzkiego, 1997)This paper presents some important earlier results of the research concerning the properties of the distribution of the quotient of random variables. We present also our own ideas and results of the research concerning ... -
Application of Dagum economic distances to the analysis of wage distributions in Poland
(Wydawnictwo Uniwersytetu Łódzkiego, 1997)Studies in the field of wage and income distribution concentrate on measuring income inequality. We can investigate both the inequality within the population and the inequality between the populations. The latter can be ... -
Asymptotic results for sliced inverse regression
(Wydawnictwo Uniwersytetu Łódzkiego, 1997)It is well known that nonparametric regression techniques do not have good performance in high dimensional regression. However nonparametric regression is successful in one- or low-dimensional regression problems and is ... -
Usefullness of Durbin method for investigating normality in one-dimensional linear model
(Wydawnictwo Uniwersytetu Łódzkiego, 1997)In this paper the verification of hypotheses of univariate normality by Durbin randomized method is presented. The method of elimination of the nuisance parameters by calculating the residual vector and connected residual ... -
Remarks on some learning algorithms
(Wydawnictwo Uniwersytetu Łódzkiego, 1997)In this paper we present some problems concerning artificial intelligence. In the first two points there are presented algorithmic and heuristic procedures, which are applied in solving problems and making optimal decision ...