Statistics in Transition. New Serieshttp://www.exeley.com/journal/statistics_in_transition>Latest research from Exeley.com in journal Statistics in Transition New SeriesON MEASURING INCOME POLARIZATION: AN APPROACH BASED ON REGRESSION TREES2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-015This article proposes the application of regression trees for analysing income polarization. Using an approach to polarization based on the analysis of variance, we show that regression trees can uncover groups of homogeneous income receivers in a data-driven way. The regression tree can deal with nonlinear relationships between income and 10.21307/stattrans-2016-015QUALITY OF LIFE AND POVERTY IN UKRAINE – PRELIMINARY ASSESSMENT BASED ON THE SUBJECTIVE WELL-BEING INDICATORS2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-016The paper provides an overview of the information sources, methodology and main findings of the research of quality of life and poverty using indicators of subjective well-being applied by state statistics agencies in Ukraine. The paper describes the system of indicators for self-evaluation of the attained level of well-being, the 10.21307/stattrans-2016-016ON THE RELATIONSHIPS BETWEEN SMART GROWTH AND COHESION INDICATORS IN THE EU COUNTRIES2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-017Within the framework of the Europe 2020 strategy smart growth is listed as one of the leading policy objectives aimed at improving the situation in education, digital society and research and innovation. The objective of this article is to evaluate the relationships between smart growth and economic and social cohesion 10.21307/stattrans-2016-017HETEROSCEDASTIC DISCRIMINANT ANALYSIS COMBINED WITH FEATURE SELECTION FOR CREDIT SCORING2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-018Credit granting is a fundamental question and one of the most complex tasks that every credit institution is faced with. Typically, credit scoring databases are often large and characterized by redundant and irrelevant features. An effective classification model will objectively help managers instead of intuitive experience. This study proposes an 10.21307/stattrans-2016-018KNOWLEDGE-BASED ECONOMY IN THE EUROPEAN UNION – CROSS-COUNTRY ANALYSIS2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-019The knowledge-based economy is an economy where knowledge is created, acquired, transmitted and used effectively by businesses, organizations, individuals and communities. It is not narrowly focused on the industries of advanced technology or ICT, but provides a framework for analysing the range of policy options in education, information infrastructure and 10.21307/stattrans-2016-019NEW METHOD OF VARIABLE SELECTION FOR BINARY DATA CLUSTER ANALYSIS2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-020Cluster analysis of binary data is a relatively poorly developed task in comparison with cluster analysis for data measured on stronger scales. For example, at the stage of variable selection one can use many methods arranged for arbitrary measurement scales but the results are usually of poor quality. In practice, 10.21307/stattrans-2016-020THE GLUEVAR RISK MEASURE AND INVESTOR’S ATTITUDES TO RISK– AN APPLICATION TO THE NON-FERROUS METALS MARKET2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-021Investing in the economic world, characterized by a high level of uncertainty and volatility, entails a higher level of risk related to investment. One of the most commonly used risk measure is Value-at-Risk. However, despite the ease of calculation and interpretation, this measure suffers from a significant drawback – it 10.21307/stattrans-2016-021EXAMINING SIMILARITIES IN TIME ALLOCATION AMONGST EUROPEAN COUNTRIES2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-022The aim of the article is to analyse the similarities between the selected European countries in terms of time allocation. Time allocation has been defined as the daily distribution of time to various activities. Professional work time, domestic work time and leisure time are the most important for the economic 10.21307/stattrans-2016-022DECOMPOSITION OF DIFFERENCES IN INCOME DISTRIBUTIONS USING QUANTILE REGRESSION2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-023The paper deals with microeconometric techniques useful for the study of differences between groups of objects, methods that go beyond simple comparison of average values. Techniques for the decomposition of differences in distributions by constructing counterfactual distributions were considered. Using the Machado-Mata quantile regression approach the empirical decomposition of the 10.21307/stattrans-2016-023The XXXIV International Conference on Multivariate Statistical Analysis, 16–18 November 2015, Łódź, Poland2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-02410.21307/stattrans-2016-024The XXIV Conference “Classification and Data Analysis – Theory and Applications” 14-16 September 2015, Gdańsk, Poland2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-02510.21307/stattrans-2016-025ABOUT THE AUTHORS2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-02610.21307/stattrans-2016-026FROM THE EDITOR2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-02710.21307/stattrans-2016-027SMALL AREA ESTIMATION OF INCOME UNDER SPATIAL SAR MODEL2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-028The paper presents the method of hierarchical Bayes (HB) estimation under small area models with spatially correlated random effects and a spatial structure implied by the Simultaneous Autoregressive (SAR) process. The idea was to improve the spatial EBLUP by incorporating the HB approach into the estimation algorithm. The computation procedure 10.21307/stattrans-2016-028SUJATHA DISTRIBUTION AND ITS APPLICATIONS2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-029In this paper a new one-parameter lifetime distribution named “Sujatha Distribution” with an increasing hazard rate for modelling lifetime data has been suggested. Its first four moments about origin and moments about mean have been obtained and expressions for coefficient of variation, skewness, kurtosis and index of dispersion have been 10.21307/stattrans-2016-029ESTIMATION OF MEAN ON THE BASIS OF CONDITIONAL SIMPLE RANDOM SAMPLE2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-030Estimation of the population mean in a finite and fixed population on the basis of the conditional simple random sampling design dependent on order statistics (quantiles) of an auxiliary variable is considered. Properties of the well-known Horvitz-Thompson and ratio type estimators as well as the sample mean are taken into 10.21307/stattrans-2016-030FROM THE EDITOR2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-04110.21307/stattrans-2016-041PREDICTION OF A FUNCTION OF MISCLASSIFIED BINARY DATA2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-031We consider the problem of predicting a function of misclassified binary variables. We make an interesting observation that the naive predictor, which ignores the misclassification errors, is unbiased even if the total misclassification error is high as long as the probabilities of false positives and false negatives are identical. Other 10.21307/stattrans-2016-031A NEW MEDIAN BASED RATIO ESTIMATOR FOR ESTIMATION OF THE FINITE POPULATION MEAN2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-042The present paper deals with a new median based ratio estimator for the estimation of finite population means in the absence of an auxiliary variable. The bias and mean squared error of the proposed median based ratio estimator are obtained. The performance of the median based ratio estimator is compared 10.21307/stattrans-2016-042AN EXTENSION OF THE CLASSICAL DISTANCE CORRELATION COEFFICIENT FOR MULTIVARIATE FUNCTIONAL DATA WITH APPLICATIONS2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-032The relationship between two sets of real variables defined for the same individuals can be evaluated by a few different correlation coefficients. For the functional data we have one important tool: canonical correlations. It is not immediately straightforward to extend other similar measures to the context of functional data analysis. 10.21307/stattrans-2016-032CHANGING MORTALITY DISTRIBUTION IN DEVELOPED COUNTRIES FROM 1970 TO 2010: LOOKING AT AVERAGES AND BEYOND THEM2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-033The methods typically developed in income inequality and poverty research are employed to observe changes in life spans distribution in 35 developed countries. The analyses are performed at two levels, using the same methods when possible: i/ taking the countries as the units with a mean length of life being 10.21307/stattrans-2016-033A NEW FAMILY OF ESTIMATORS OF THE POPULATION VARIANCE USING INFORMATION ON POPULATION VARIANCE OF AUXILIARY VARIABLE IN SAMPLE SURVEYS2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-043This paper proposes a family of estimators of population variance 2 y S of the study variable y in the presence of known population variance 2 x S of the auxiliary variable x. It is identified that in addition to many, the recently proposed classes of estimators due to Sharma and Singh (2014) and Singh and 10.21307/stattrans-2016-043QUALITY OF INSTITUTIONS AND TOTAL FACTOR PRODUCTIVITY IN THE EUROPEAN UNION2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-034The key challenge for mid- and long-term policy in the European Union countries is to use the potentials of knowledge-based economy (KBE), which is a condition for maintaining high total factor productivity in Europe. For this reason, the relationship between the quality of an institutional system and total factor productivity 10.21307/stattrans-2016-034SHIFT IN METHODOLOGY AND POPULATION CENSUS QUALITY2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-044The article refers to the shift in methods to conduct a population census: from a conventional enumeration through a sample survey and a mixed approach to administrative data, as a new standard in statistics. The paper compares two Polish censuses of 2002 and 2011. It is aimed at quality assessment 10.21307/stattrans-2016-044LOCALLY REGULARIZED LINEAR REGRESSION IN THE VALUATION OF REAL ESTATE2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-035Regression methods are used for the valuation of real estate in the comparative approach. The basis for the valuation is a data set of similar properties, for which sales transactions were concluded within a short period of time. Large and standardized databases, which meet the requirements of the Polish Financial 10.21307/stattrans-2016-035SPATIAL AUTOCORRELATION IN ASSESSMENT OF FINANCIAL SELF-SUFFICIENCY OF COMMUNES OF WIELKOPOLSKA PROVINCE2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-036The aim of the article was to identify the spatial effects in assessment of financial self-sufficiency of the governments of communes (gminas) of Wielkopolska province (voivodship) in 2014, employing global and local Moran I statistics. The level of the governments’ self-sufficiency was examined by positional TOPSIS method. The study was 10.21307/stattrans-2016-036KERNEL ESTIMATION OF CUMULATIVE DISTRIBUTION FUNCTION OF A RANDOM VARIABLE WITH BOUNDED SUPPORT2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-037In the paper methods of reducing the so-called boundary effects, which appear in the estimation of certain functional characteristics of a random variable with bounded support, are discussed. The methods of the cumulative distribution function estimation, in particular the kernel method, as well as the phenomenon of increased bias estimation 10.21307/stattrans-2016-037IN SEARCH OF HEDGES AND SAFE HAVENS IN GLOBAL FINANCIAL MARKETS2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-038The aim of the paper is to search for hedges and safe havens within three instrument classes: assets (represented by the S&P500 index), gold and oil prices, and dollar exchange rates. Weekly series of returns of all the instruments from the period January 1995 – June 2015 are analysed. The 10.21307/stattrans-2016-038BOOK REVIEW2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-03910.21307/stattrans-2016-039ABOUT THE AUTHORS2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-04010.21307/stattrans-2016-040MODELLING ROAD TRAFFIC CRASHES USING SPATIAL AUTOREGRESSIVE MODEL WITH ADDITIONAL ENDOGENOUS VARIABLE2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-045Road traffic crashes have become a global issue of concern because of the number of deaths and injuries. The model of interest is a linear cross sectional Spatial Autoregressive (SAR) model with additional endogenous variables, exogenous variables and SAR disturbances. The focus is on RTC in Oyo state, Nigeria. The 10.21307/stattrans-2016-045BAYESIAN ACCELERATED FAILURE TIME AND ITS APPLICATION IN CHEMOTHERAPY DRUG TREATMENT TRIAL2017-07-07http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-046The Cox proportional hazards model (CPH) is normally applied in clinical trial data analysis, but it can generate severe problems with breaking the proportion hazard assumption. An accelerated failure time (AFT) is consid-ered as an alternative to the proportional hazard model. The model can be used through consideration of dierent covariates of interest 10.21307/stattrans-2016-046CALENDAR AND SEASONAL EFFECTS ON THE SIZE OF WITHDRAWALS FROM ATMS MANAGED BY EURONET2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-047This study analyses the calendar effects on withdrawals from Automated Teller Machines (ATMs) (daily data) managed by the Euronet network for the period from January 2008 to March 2012. Our study focuses on the identification of specific calendar and seasonal effects in the ATM cash withdrawal series of the company 10.21307/stattrans-2016-047THE IDENTIFICATION OF TRAINING NEEDS FOR HUMAN CAPITAL QUALITY IMPROVEMENT IN POLAND – A STATISTICAL APPROACH2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-048The Ministry of Science and Higher Education has launched the Competency De-velopment Programme in the form of additional financial means for activities to equip students with unique, the so-called soft skills necessary in scientific careers and on the labour market. Courses developing skills such as team work ability, leadership, creativity, 10.21307/stattrans-2016-048INTERVAL ESTIMATION OF HIGHER ORDER QUANTILES. ANALYSIS OF ACCURACY OF SELECTED PROCEDURES2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-049In the paper selected nonparametric and semiparametric estimation methods of higher orders quantiles are considered. The construction of nonparametric confidence intervals is based on order statistics of appropriate ranks from random samples or from generated bootstrap samples. Semiparametric bootstrap methods are characterized by double bootstrap simulations. The values of bootstrap 10.21307/stattrans-2016-049M-ESTIMATORS IN BUSINESS STATISTICS2017-07-07http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-050Recent years have seen a dynamic development in statistical methods for analysing data contaminated with outliers. One of the more important techniques that can deal with outlying observations is robust regression, which represents four decades of research. Until recently the implementation of robust regression methods, such as M-estimation or MM-estimation, 10.21307/stattrans-2016-050INFORMATIVE VERSUS NON-INFORMATIVE PRIOR DISTRIBUTIONS AND THEIR IMPACT ON THE ACCURACY OF BAYESIAN INFERENCE2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-051In this study the benefits arising from the use of the Bayesian approach to predictive modelling will be outlined and exemplified by a linear regression model and a logistic regression model. The impact of informative and non-informative prior on model accuracy will be examined and compared. The data from the 10.21307/stattrans-2016-051EDWARD ROSSET (1897-1989) - THE NESTOR OF POLISH DEMOGRAPHERS AND STATISTICIANS2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-05210.21307/stattrans-2016-052Quality of Life and Spatial Cohesion: Interaction of Development and Well-being in the Local Context (QLiSC), 17-18 November, Warsaw, Poland2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-05310.21307/stattrans-2016-053ABOUT THE AUTHORS2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-05410.21307/stattrans-2016-054ACKNOWLEDGEMENTS TO REVIEWERS2017-07-06http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-05510.21307/stattrans-2016-055On the Performance of Some Biased Estimators in a Misspecified Model with Correlated Regressors2017-07-17http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-056Abstract In this paper, the effect of misspecification due to omission of relevant variables on the dominance of the r − (k, d) class estimator proposed by Özkale (2012), over the ordinary least squares (OLS) estimator and some other competing estimators when some of the regressors in the linear regression 10.21307/stattrans-2016-056Improved Estimation of the Scale Parameter for Log-Logistic Distribution Using Balanced Ranked Set Sampling2017-07-11http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-057Abstract In this article we have suggested some improved estimators of a scale parameter of log-logistic distribution (LLD) under a situation where the units in a sample can be ordered by judgement method without any error. We have also suggested some linear shrinkage estimator of a scale parameter of LLD. 10.21307/stattrans-2016-057The Achievements of Students at the Stages of Education from the Second to Fourth Using Functional Principal Component Analysis2017-07-17http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-062Abstract Significant demographic phenomena can be observed in Poland – the number of school age population is decreasing. It affects higher education since the immediate effect of demographic changes is the drop in the number of students. The analysis of the level of future students’ knowledge also remains an important 10.21307/stattrans-2016-062FROM THE EDITOR2017-08-24http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-06510.21307/stattrans-2016-065ESTIMATING SENSITIVE POPULATION PROPORTION USING A COMBINATION OF BINOMIAL AND HYPERGEOMETRIC RANDOMIZED RESPONSES BY DIRECT AND INVERSE MECHANISM2017-08-24http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-066For various reasons individuals in a sample survey may prefer not to conﬁde to the interviewer the correct answers to certain potentially sensitive questions such as the illegal use of drugs, illegal earning, or incidence of acts of domestic violence, etc. In such cases the individuals may elect not to 10.21307/stattrans-2016-066RESIDENCY TESTING. ESTIMATING THE TRUE POPULATION SIZE OF ESTONIA2017-08-24http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-067The number of residents or population size is important for all countries. Nowadays in many countries a series of registers have been created, which can be used for assessing the population size. The residency index is a tool created for estimating the under- and over-coverage of population census and calculation 10.21307/stattrans-2016-067EFFICIENT FAMILY OF RATIO-TYPE ESTIMATORS FOR MEAN ESTIMATION IN SUCCESSIVE SAMPLING ON TWO OCCASIONS USING AUXILIARY INFORMATION2017-08-24http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-068In this paper, we proposed an efﬁcient family of ratio-type estimators using one auxiliary variable for the estimation of the current population mean under successive sampling scheme. This family of estimators have been studied by Ray and Sahai (1980) under simple random sampling using one auxiliary variable for estimation of 10.21307/stattrans-2016-068SEQUENTIAL DATA WEIGHTING PROCEDURES FOR COMBINED RATIO ESTIMATORS IN COMPLEX SAMPLE SURVEYS2017-08-24http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-069In sample surveys weighting is applied to data to increase the quality of estimates. Data weighting can be used for several purposes. Sample design weights can be used to adjust the differences in selection probabilities for non-self weighting sample designs. Sample design weights, adjusted for nonresponse and non-coverage through the 10.21307/stattrans-2016-069A MULTIDIMENSIONAL AND DYNAMISED CLASSIFICATION OF POLISH PROVINCES BASED ON SELECTED FEATURES OF HIGHER EDUCATION IN 2002–20132017-08-24http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-070For close to two decades after the fall of communism in 1989, Polish higher education enjoyed an unprecedented period of development. Favourable political, economic, social and demographic changes led to a fivefold increase in the number of students and the number of higher educational institutions. The dynamic changes and their 10.21307/stattrans-2016-070A THREE-PARAMETER WEIGHTED LINDLEY DISTRIBUTION AND ITS APPLICATIONS TO MODEL SURVIVAL TIME2017-08-24http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-071In this paper a three-parameter weighted Lindley distribution, including Lindley distribution introduced by Lindley (1958), a two-parameter gamma distribution, a two-parameter weighted Lindley distribution introduced by Ghitany et al. (2011) and exponential distribution as special cases, has been suggested for modelling lifetime data from engineering and biomedical sciences. The structural 10.21307/stattrans-2016-071EXAMINING TESTS FOR COMPARING SURVIVAL CURVES WITH RIGHT CENSORED DATA2017-08-24http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-072Background and objective: In survival analysis, estimating the survival probability of a population is important, but on the other hand, investigators want to compare the survival experiences of different groups. In such cases, the differences can be illustrated by drawing survival curves, but this will only give a rough idea. 10.21307/stattrans-2016-072MET AND UNMET NEED FOR CONTRACEPTION: SMALL AREA ESTIMATION FOR RAJASTHAN STATE OF INDIA2017-08-24http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-073Nowadays, Family Planning has become the basic human right, which is closely linked to the empowerment of women and perhaps it is the only treatment that can avert many serious issues, which are an impediment in the advancement of the country like maternal mortality, infant mortality and can exert out 10.21307/stattrans-2016-073The XXXV International Conference on Multivariate Statistical Analysis, 7–9 November 2016, Łódź, Poland2017-08-24http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-07410.21307/stattrans-2016-074JOINT CALIBRATION ESTIMATOR FOR DUAL FRAME SURVEYS2017-10-30http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2015-001Many dual frame estimators have been proposed in the statistics literature. Some of these estimators are theoretically optimal but hard to apply in practice, whereas others are applicable but have larger variances than the first group. In this paper, a Joint Calibration Estimator (JCE) is proposed that is simple to 10.21307/stattrans-2015-001SOME CLASSES OF MODIFIED RATIO TYPE ESTIMATORS IN SAMPLE SURVEYS2017-10-30http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2015-002In this paper some classes of modified ratio type estimators with additive and multiplicative adjustments made to the simple mean per unit estimator and classical ratio estimator are suggested to obtain more efficient ratio type estimators compared to the classical one. Their biases and mean square errors are obtained and 10.21307/stattrans-2015-002IMPROVED SEPARATE RATIO AND PRODUCT EXPONENTIAL TYPE ESTIMATORS IN THE CASE OF POST-STRATIFICATION2017-10-31http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2015-003This paper addressed the problem of estimation of finite population mean in the case of post-stratification. Improved separate ratio and product exponential type estimators in the case of post-stratification are suggested. The biases and mean squared errors of the suggested estimators are obtained up to the first degree of approximation. 10.21307/stattrans-2015-003POLICY-ORIENTED INFERENCE AND THE ANALYST-CLIENT COOPERATION. AN EXAMPLE FROM SMALL-AREA STATISTICS2017-10-31http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2015-004We show on an application to small-area statistics that efficient estimation is not always conducive to good policy decisions because the established inferential procedures have no capacity to incorporate the priorities and preferences of the policy makers and the related consequences of incorrect decisions. A method that addresses these deficiencies 10.21307/stattrans-2015-004APPLICATION OF BOX-JENKINS METHOD AND ARTIFICIAL NEURAL NETWORK PROCEDURE FOR TIME SERIES FORECASTING OF PRICES2017-10-31http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2015-005Forecasting of prices of commodities, especially those of agricultural commodities, is very difficult because they are not only governed by demand and supply but also by so many other factors which are beyond control, such as weather vagaries, storage capacity, transportation, etc. In this paper time series models namely ARIMA 10.21307/stattrans-2015-005CLASSIFICATION PROBLEMS BASED ON REGRESSION MODELS FOR MULTI-DIMENSIONAL FUNCTIONAL DATA2017-10-31http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2015-006Data in the form of a continuous vector function on a given interval are referred to as multivariate functional data. These data are treated as realizations of multivariate random processes. We use multivariate functional regression techniques for the classification of multivariate functional data. The approaches discussed are illustrated with an 10.21307/stattrans-2015-006STOCHASTIC GOALS IN FINANCIAL PLANNING FOR A TWO-PERSON HOUSEHOLD2017-10-31http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2015-007In household financial planning two types of risk are typically being taken into account. These are life-length risk and risk connected with financing. In addition, also various types of events of insurance character, like health deterioration, are sometimes taken into account. There are, however, no models addressing stochastic nature of 10.21307/stattrans-2015-007ROBUST REGRESSION IN MONTHLY BUSINESS SURVEY2017-10-31http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2015-008There are many sample surveys of populations that contain outliers (extreme values). This is especially true in business, agricultural, household and medicine surveys. Outliers can have a large distorting influence on classical statistical methods that are optimal under the assumption of normality or linearity. As a result, the presence of 10.21307/stattrans-2015-008AN APPROXIMATION TO THE OPTIMAL SUBSAMPLE ALLOCATION FOR SMALL AREAS2017-10-31http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2015-009This paper develops allocation methods for stratified sample surveys in which small area estimation is a priority. We assume stratified sampling with small areas as the strata. Similar to Longford (2006), we seek efficient allocation that minimizes a linear combination of the mean squared errors of composite small area estimators 10.21307/stattrans-2015-009RATIO-TO-REGRESSION ESTIMATOR IN SUCCESSIVE SAMPLING USING ONE AUXILIARY VARIABLE2017-10-31http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2015-010The problem of estimation of finite population mean on the current occasion based on the samples selected over two occasions has been considered. In this paper, first a chain ratio-to-regression estimator was proposed to estimate the population mean on the current occasion in two-occasion successive (rotation) sampling using only the 10.21307/stattrans-2015-010MULTINOMIAL LOGISTIC REGRESSION APPROACH FOR THE EVALUATION OF BINARY DIAGNOSTIC TEST IN MEDICAL RESEARCH2017-10-31http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2015-011Evaluating the effect of variables on diagnostic measures (sensitivity, specificity, positive, and negative predictive values) is often of interest to clinical researchers. Logistic regression (LR) models can be used to predict diagnostic measures of a screening test. A marginal model framework using generalized estimating equation (GEE) with logit/log link can 10.21307/stattrans-2015-011FUNCTIONAL STRUCTURE OF POLISH REGIONS IN THE PERIOD 2004-2013 – MEASUREMENT VIA HHI INDEX, FLORENCE’S COEFFICIENT OF LOCALIZATION AND CLUSTER ANALYSIS2017-10-31http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2015-012The article addresses the measurement and identification problems covering particular social and economic areas (referred to as functions) in the regions of the country, based on the employment structure analysis and assessment by the sectors of the economy. The Herfindahl-Hirschman index was applied to measure sectoral concentration and Florence’s coefficient 10.21307/stattrans-2015-012USING SYMBOLIC DATA IN GRAVITY MODEL OF POPULATION MIGRATION TO REDUCE MODIFIABLE AREAL UNIT PROBLEM (MAUP)2017-10-31http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2015-013Spatial analyses suffer from modifiable areal unit problem (MAUP). This occurs while operating on aggregated data determined for high-level territorial units, e.g. official statistics for countries. Generalization process deprives the data of variation. Carrying out research excluding territorial distribution of a phenomenon affects the analysis results and reduces their reliability. 10.21307/stattrans-2015-013ANALYSIS OF CONVERGENCE OF EUROPEAN REGIONS WITH THE USE OF COMPOSITE INDEX2017-10-31http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2015-014Convergence study is related to several crucial issues. One of those problems is an individual character of every region in the selected area, as the regions established accordingly to the European classification system NUTS-2 are not homogeneous. Therefore, while analysing convergence in the European Union, regions with extremely dissimilar characteristics 10.21307/stattrans-2015-014APPLICATION OF MULTIFACTORIAL MARKET-TIMING MODELS TO ASSESS RISK AND EFFECTIVENESS OF EQUITY-LINKED INSURANCE FUNDS IN POLAND2017-10-31http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2015-015Traditionally, models developed by Treynor and Mazuy (T-M) and also by Henriksson-Merton (H-M), which are called market-timing models, are applied to assess effectiveness of investment funds. The objective of the presented study is an application of the T-M and H-M models and their T-M-FF and H-M-FF modifications with additional Fama-French 10.21307/stattrans-2015-015A MEASURE FOR REGIONAL RESILIENCE TO ECONOMIC CRISIS2017-10-31http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2015-016The purpose of the study (presented in this article) was to develop a measure of resilience to crisis, one that may be applied to regional data. In principle, such measure can take either positive or negative values. A positive value confirms resilience to crisis, whereas a negative one confirms the 10.21307/stattrans-2015-016COMPUTERISED RECOMMENDATIONS ON E-TRANSACTION FINALISATION BY MEANS OF MACHINE LEARNING2017-10-31http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2015-017Nowadays a vast majority of businesses are supported or executed online. Website- to-user interaction is extremely important and user browsing activity on a website is becoming important to analyse. This paper is devoted to the research on user online behaviour and making computerised advices. Several problems and their solutions are 10.21307/stattrans-2015-017In Memoriam2017-11-20http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2015-01810.21307/stattrans-2015-018CONCEPTUALIZING SUBJECTIVE WELL-BEING AND ITS MANY DIMENSIONS – IMPLICATIONS FOR DATA COLLECTION IN OFFICIAL STATISTICS AND FOR POLICY RELEVANCE2017-10-31http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2015-020Subjective well-being encompasses several distinct but interacting aspects of people’s feelings, attitudes, and experiences. This paper assesses the state of the art for measuring these dimensions of people's lives, which typically involves analyzing self-reports of subjective well-being collected in survey instruments; however, other potentially complementary, technology-driven tools are emerging as 10.21307/stattrans-2015-020THE OFFICE FOR NATIONAL STATISTICS EXPERIENCE OF COLLECTING AND MEASURING SUBJECTIVE WELL-BEING2017-11-01http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2015-021The UK Office for National Statistics (ONS) started measuring subjective well- being in 2011 as part of the ONS Measuring National Well-being programme. The aim of the Measuring National Well-being programme is to measure the quality of life and progress of the UK. This article explores the development of the 10.21307/stattrans-2015-021OFFICIAL STATISTICS ON PERSONAL WELL-BEING: SOME REFLECTIONS ON THE DEVELOPMENT AND SOME REFLECTIONS ON THE DEVELOPMENT AND IN THE UK 2017-11-01http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2015-022This paper draws on experience of the UK Office for National Statistics (ONS) programme to measure national well-being, particularly the high-profile element of the programme in which subjective well-being measures have been collected and published since April 2011. We reflect on drivers of the ONS work and on how these 10.21307/stattrans-2015-022EXPLOITING ORDINAL DATA FOR SUBJECTIVE WELL-BEING EVALUATION 2017-11-01http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2015-023The evaluation of subjective well-being, and of similar issues related to quality of life, is usually addressed through composite indicators or counting procedures. This leads to inconsistencies and inefficiency in the treatment of ordinal data that, in turn, affect the quality of information provided to scholars and to policy-makers. In 10.21307/stattrans-2015-023USING THE DAY RECONSTRUCTION METHOD TO QUANTIFY TIME SPENT SUFFERING AMONG OLDER ADULTS WITH CHRONIC PAIN2017-11-01http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2015-024The Day Reconstruction Method (DRM) is a structured diary designed to measure time use in a manner that is more valid than traditional written summary measures, but less burdensome than real-time electronic diary methods. The lower respondent burden and administration costs might make it feasible to utilize this method in 10.21307/stattrans-2015-024AN INITIAL RESEARCH ON OUTPUT WELL-BEING INDEX APPLIED TO RESIDENTS IN WEALTHY COUNTIES FROM CHINA 2017-11-01http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2015-025Sampling from three wealthy counties in Shandong province (n = 855), this research examined the characteristics of an output well-being index, and the index shows good internal consistency reliability and ideal construct validity. It could be used as an instrument to evaluate the quality of life of Chinese citizens. The 10.21307/stattrans-2015-025OPERATIONALIZATION AND ESTIMATION OF BALANCED DEVELOPMENT INDEX FOR POLAND 1999-20162017-11-01http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2015-026Stemming from assumption that Gross Domestic Product is an index oversimplifying economic development and not reflecting socio-economic development, the paper presents conceptualization, operationalization and estimation of Balanced Development Index (BDI), concerning both economic and social development in Poland. Actual values of this index as well as its four composite components 10.21307/stattrans-2015-026FROM THE EDITORS2017-11-01http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2015-02710.21307/stattrans-2015-027FROM THE GUEST EDITORS (PART 1)2017-11-01http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2015-02810.21307/stattrans-2015-028INFERENTIAL ISSUES IN MODEL-BASED SMALL AREA ESTIMATION: SOME NEW DEVELOPMENTS2017-11-01http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2015-029Small area estimation (SAE) has seen a rapid growth over the past 10 years or so. Earlier work is covered in the author's book (Rao 2003). The main purpose of this paper is to highlight some new developments in model-based SAE since the publication of the author's book. A large 10.21307/stattrans-2015-029Triple-goal estimation of unemployment rates for U.S. states using the U.S. Current Population Survey data2017-11-01http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2015-030In this paper, we first develop a triple-goal small area estimation methodology for simultaneous estimation of unemployment rates for U.S. states using the Current Population Survey (CPS) data and a two-level random sampling variance normal model. The main goal of this paper is to illustrate the utility of the triple-goal 10.21307/stattrans-2015-030COVARIATE SELECTION FOR SMALL AREA ESTIMATION IN REPEATED SAMPLE SURVEYS2017-11-01http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2015-031If the implementation of small area estimation methods to multiple editions of a repeated sample survey is considered, then the question arises which covariates to use in the models. Applying standard model selection procedures independently to the different editions of the survey may identify different sets of covariates for each 10.21307/stattrans-2015-031SMALL AREA ESTIMATION FOR SKEWED DATA IN THE PRESENCE OF ZEROES2017-11-01http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2015-032Skewed distributions with representative outliers pose a problem in many surveys. Various small area prediction approaches for skewed data based on transformation models have been proposed. However, in certain applications of those predictors, the fact that the survey data also contain a non-negligible number of zero-valued observations is sometimes dealt 10.21307/stattrans-2015-032BORROWING INFORMATION OVER TIME IN BINOMIAL/LOGIT NORMAL MODELS FOR SMALL AREA ESTIMATION2017-11-01http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2015-033Linear area level models for small area estimation, such as the Fay-Herriot model, face challenges when applied to discrete survey data. Such data commonly arise as direct survey estimates of the number of persons possessing some characteristic, such as the number of persons in poverty. For such applications, we examine 10.21307/stattrans-2015-033SMALL AREA ESTIMATES OF THE POPULATION DISTRIBUTION BY ETHNIC GROUP IN ENGLAND: A PROPOSAL USING STRUCTURE PRESERVING ESTIMATORS2017-11-01http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2015-034This paper addresses the problem of producing small area estimates of Ethnicity by Local Authority in England. A Structure Preserving approach is proposed, making use of the Generalized Structure Preserving Estimator. In order to identify the best way to use the available aggregate information, three fixed effects models with increasing 10.21307/stattrans-2015-034SAE TEACHING USING SIMULATIONS2017-11-01http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2015-035The increasing interest in applying small area estimation methods urges the needs for training in small area estimation. To better understand the behaviour of small area estimators in practice, simulations are a feasible way for evaluating and teaching properties of the estimators of interest. By designing such simulation studies, students 10.21307/stattrans-2015-035SAE EDUCATION CHALLENGES TO ACADEMICS AND NSI2017-11-01http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2015-036The aim of the paper is to present some experiences in teaching Small Area Estimation (SAE). SAE education experiences and challenges are analysed from the academic side and from the NSI side. An attempt was undertaken to discuss SAE issues in a wider perspective of teaching statistics. In particular, the 10.21307/stattrans-2015-036FROM THE EDITOR2017-11-20http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-07510.21307/stattrans-2016-075POPULATION VARIANCE ESTIMATION USING FACTOR TYPE IMPUTATION METHOD2017-11-20http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-076We propose a variance estimator based on factor type imputation in the presence of non-response. Properties of the proposed classes of estimators are studied and their optimality conditions are derived. The proposed classes of factor type ratio estimators are shown to be more efficient than some of the existing estimators, 10.21307/stattrans-2016-076BAYESIAN MODEL AVERAGING AND JOINTNESS MEASURES: THEORETICAL FRAMEWORK AND APPLICATION TO THE GRAVITY MODEL OF TRADE2017-11-20http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-077The following study presents the idea of Bayesian model averaging (BMA), as well as the benefits coming from combining the knowledge obtained on the basis of analysis of different models. The BMA structure is described together with its most important statistics, g prior parameter proposals, prior model size distributions, and 10.21307/stattrans-2016-077ON ASYMMETRY OF PREDICTION ERRORS IN SMALL AREA ESTIMATION2017-11-20http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-078The mean squared error reflects only the average prediction accuracy while the distribution of squared prediction error is positively skewed. Hence, assessing or comparing accuracy based on the MSE (which is the mean of squared errors) is insufficient and even inadequate because we should be interested not only in the 10.21307/stattrans-2016-078AN APPLICATION OF FUNCTIONAL MULTIVARIATE REGRESSION MODEL TO MULTICLASS CLASSIFICATION2017-11-20http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-079In this paper, the scale response functional multivariate regression model is considered. By using the basis functions representation of functional predictors and regression coefficients, this model is rewritten as a multivariate regression model. This representation of the functional multivariate regression model is used for multiclass classification for multivariate functional data. 10.21307/stattrans-2016-079STACKED REGRESSION WITH A GENERALIZATION OF THE MOORE-PENROSE PSEUDOINVERSE2017-11-20http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-080In practice, it often happens that there are a number of classification methods. We are not able to clearly determine which method is optimal. We propose a combined method that allows us to consolidate information from multiple sources in a better classifier. Stacked regression (SR) is a method for forming 10.21307/stattrans-2016-080AN ADDITIVE RISKS REGRESSION MODEL FOR MIDDLE-CENSORED LIFETIME DATA2017-11-20http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-081Middle-censoring refers to data arising in situations where the exact lifetime of study subjects becomes unobservable if it happens to fall in a random censoring interval. In the present paper we propose a semiparametric additive risks regression model for analysing middle-censored lifetime data arising from an unknown population. We estimate 10.21307/stattrans-2016-081OPTION FOR PREDICTING THE CZECH REPUBLIC'S FOREIGN TRADE TIME SERIES AS COMPONENTS IN GROSS DOMESTIC PRODUCT2017-11-20http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-082This paper analyses the time series observed for the foreign trade of the Czech Republic (CR) and predictions in such series with the aid of the SARIMA and transfer-function models. Our goal is to find models suitable for describing the time series of the exports and imports of goods and 10.21307/stattrans-2016-082SUBJECTIVE APPROACH TO ASSESSING POVERTY IN POLAND – IMPLICATIONS FOR SOCIAL POLICY2017-11-20http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-083The poverty rates based on the OECD scales are frequently used in public debate. In this scale, large families are usually identified as those most in need of financial support. Poland is an interesting case for applying an alternative, subjective approach to calculating equivalent scales, as Poland has a large 10.21307/stattrans-2016-083SELECTING THE OPTIMAL MULTIDIMENSIONAL SCALING PROCEDURE FOR METRIC DATA WITH R ENVIRONMENT2017-11-20http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-084In multidimensional scaling (MDS) carried out on the basis of a metric data matrix (interval, ratio), the main decision problems relate to the selection of the method of normalization of the values of the variables, the selection of distance measure and the selection of MDS model. The article proposes a 10.21307/stattrans-2016-084SAMPLE ALLOCATION IN ESTIMATION OF PROPORTION IN A FINITE POPULATION DIVIDED AMONG TWO STRATA2017-11-20http://www.exeley.com/statistics_in_transition/doi/10.21307/stattrans-2016-085The problem of estimating a proportion of objects with a particular attribute in a finite population is considered. The classical estimator is compared with the estimator, which uses the information that the population is divided among two strata. Theoretical results are illustrated with a numerical example. 10.21307/stattrans-2016-085