RSS 1.0Acta Universitatis Lodziensis. Folia Oeconomica nr 302(3)/2014
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Multivariate Statistical Analysis. New methods and innovative applications
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ON NONRESPONSE CAUSALITY TESTING IN ROTATING PANEL DESIGNS UNDER THE COX MODEL
(Wydawnictwo Uniwersytetu Łódzkiego, 2014)High survey nonresponse in unemployment duration studies may have a strong effect on inference if exit from unemployment affects the chance of nonresponse (nonresponse causality). In rotational studies large part of the ... -
ON THE RESAMPLING METHOD IN SAMPLE MEDIAN ESTIMATION
(Wydawnictwo Uniwersytetu Łódzkiego, 2014)Bootstrap is one of the resampling statistical methods. This method was proposed by B. Efron. The main idea of bootstrap is to treat the original sample of values as a stand-in for the population and to resample with ... -
PROPERTIES OF SELECTED SIGNIFICANCE TESTS FOR EXTREME VALUE INDEX
(Wydawnictwo Uniwersytetu Łódzkiego, 2014)The paper presents two tests verifying the hypothesis about the shape parameter of the generalized distribution of maximum statistic. It is called the extreme value index. The inverse of the positive index is called the ... -
Using the Stable Distribution to Monitor a Process, which Distribution is Unknown
(Wydawnictwo Uniwersytetu Łódzkiego, 2014)The control chart is a tool of statistical quality control, which is widely used in production. The fulfillment of its basic assumptions, guarantees flawless assessment of correctness of the monitored process. The purpose ... -
Tadeusz Czacki as a social statistician
(Wydawnictwo Uniwersytetu Łódzkiego, 2014)The article presents the life and scientific achievments of Tadeusz Czacki. -
Julian Perkal – pioneer of new statistical methods in science
(Wydawnictwo Uniwersytetu Łódzkiego, 2014)The article describes the life and scientific achievments of Julian Perkal. -
Memories of Professor Ryszard Zieliński
(Wydawnictwo Uniwersytetu Łódzkiego, 2014)The article presents memories of Ryszard Zieliński. -
GARCH CLASS MODELS PERFORMANCE IN CONTEXT OF HIGH MARKET VOLATILITY
Małecka, Marta
(Wydawnictwo Uniwersytetu Łódzkiego, 2014)
In the presented paper GARCH class models were considered for describing and forecasting market volatility in context of the economic crisis. The sample composition was designed to emphasize models performance in two groups ... -
SPATIAL DISTRIBUTION OF WILLINGNESS TO PAY FOR HEALTH SERVICES OF HOUSEHOLDS IN POLAND
(Wydawnictwo Uniwersytetu Łódzkiego, 2014)The purpose of this article is to demonstrate the spatial distribution of willingness to pay for health services of households in Poland, on the example of voluntary health insurance. With the ability to identify a household ... -
APPLICATION OF CHOSEN NORMALIZATION METHODS IN THE PROCESS OF CONSTRUCTION OF SYNTHETIC MASURURE IN INDIRECT CONSUMPTION RESEARCH
(Wydawnictwo Uniwersytetu Łódzkiego, 2014)The main purpose of this paper is to find the most effective method for the normalization of a final set of diagnostic variables for indirect consumption research with the use of synthetic consumption measures. The chosen ... -
DYNAMICS OF THE REAL ESTATE PRICES IN THE LIGHT OF THE CATASTROPHE THEORY
(Wydawnictwo Uniwersytetu Łódzkiego, 2014)The paper describes application of catastrophe theory for analysis of trends of real estate prices inPoznan. It turns out that the evolution of the real estate market is comprised of two main processes: long-term evolution ... -
THE METHODS OF FORECASTING OF CHANGES OF MUNICIPAL WASTE PRODUCTION IN CASE OF CITIES
(Wydawnictwo Uniwersytetu Łódzkiego, 2014)Waste management is currently one of the most important problems of the functioning of densely populated areas, important in the case of cities. The main problem of waste management is to break a simple correlation between ... -
BIAVERAGE AND MULIMODALITY IN INVESTIGATING DISTRIBUTION OF ELECTRICITY PRICES
; Pekasiewicz, Dorota (Wydawnictwo Uniwersytetu Łódzkiego, 2014)
In the paper chosen statistical methods concerning analysis of random variable distributions are presented. Investigating modality of distribution is one of the most interesting and important stages in random variable ... -
DISTANCE MEASURES IN AGGREGATING PREFERENCE DATA
(Wydawnictwo Uniwersytetu Łódzkiego, 2014)The aim of this paper is to present aggregation methods of individual preferences scores by means of distance measures. Three groups of distance measures are discussed: measures which use preference distributions for all ... -
PROFESSORS: KAZIMIERZ ZAJĄC ORAZ ANDRZEJ IWASIEWICZ – KRAKOW’S EMINENT STATISTICIANS
(Wydawnictwo Uniwersytetu Łódzkiego, 2014)The article presents memories of Kazimierz Zając and Andrzej Iwasiewicz. -
THE RELATIONSHIP BETWEEN JOB SEEKING DURATION AND THE TIME OF UNEMPLOYMENT BENEFIT. SEARCHING THEORY ON LABOUR MARKET
(Wydawnictwo Uniwersytetu Łódzkiego, 2014)The aim of the article is to analyze the influence of time of unemployment benefit on the time of registered unemployment. In research were used a duration analysis methods (Kaplan-Meier estimator, Cox regression model). ... -
THE MEASUREMENT OF THE ECONOMIC DISTANCE ON THE BASIS OF SYMBOLIC DATA
(Wydawnictwo Uniwersytetu Łódzkiego, 2014)The economic distance defines a dissimilarity level between objects functioning in the economic space. It is one of the most important issues of spatial econometrics. However its measurement is difficult due to the definition, ... -
DISCRIMINANT STEPWISE PROCEDURE
(Wydawnictwo Uniwersytetu Łódzkiego, 2014)Stepwise procedure is now probably the most popular tool for automatic feature selection. In the most cases it represents model selection approach which evaluates various feature subsets (so called wrapper). In fact it is ... -
ON THE SELECTED METHODS FOR EVALUATING CLASSIFICATION MODELS
(Wydawnictwo Uniwersytetu Łódzkiego, 2014)Traditional measures for assessing the performance of classification models for binary outcomes are the ROC curve and the area under the ROC curve (AUC).Reclassification tables (Cook, 2008), net reclassification improvement ... -
VERYFICATION OF LOCATION PROBLEM IN ECONOMIC RESEARCH
(Wydawnictwo Uniwersytetu Łódzkiego, 2014)In economic research very often the location problem in the single sample or estimation of the difference in two samples location is commonly tested by experimental economists. Usually the used tests are Wilcoxon test for ...