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Having given the data set with executed transactions and customer demographic features one can use marketing scoring to support sales campaign. The discrimination methods used in the scoring often face the problem of imbalance classes and irrelevant variables. In this paper, we analyze the insurance market, where the scoring is performed with a use of the weighted k nearest neighbors and multivariate...
This paper presents a proposal for process control applications based on econo-metric models. They are a tool which aim is to determine short-term forecasts, which are the basis to control the devices of production infrastructure. The article describes the application of the method of forecast errors corrective device in a real production process. Econometric models are presented: the exponential...
The main objective of this article is to present the patterns of Polish employers’ perception of competences of higher education graduates in the context of labor market needs. The analyzes are carried out on the basis of survey data collected and made available by the Flash Eurobarometer. Since the set of variables under consideration contains only non-metric data, some selected visualization techniques...
Numerous economic indicators are used for the purpose of research and international comparisons. Most important are Gross Domestic Product (GDP), national income, unemployment rate, inflation rate, foreign trade’s and investments’ share in GDP. Other measures, which are based on GDP, may be used for the economic growth assessment. These are for example economy internationalization, activity level,...
Measurement of consumer preferences is one of the most important elements of marketing research. In the measurement of consumers’ preferences Maximum Difference Scaling can be used. In this method, a fractional factorial design is used as the experiment, where a limited set of profiles (product or service) is taken into account. The resignation of full factorial design, in which the number of profiles...
In this paper there was conducted a statistical analysis of the impact of the distribution of unsystematic gaps on the accouracy of inter- and extrapolative forecasts in the seasonal time series. In the analysis, as variable, there was used the average period of stay of tourists in accommodation establishments in the West Pomeranian Voivodeship in the years 2008-2013. In calculations there were used...
11 maja odbyły się XIX Warsztaty Metodologiczne im. Profesora Stefana Mynarskiego pt. „Wielowymiarowość i złożoność danych marketingowych. Wyzwania analityczne”. Organizatorem konferencji były Katedra Ekonometrii oraz Katedra Badań Marketingowych Uniwersytetu Ekonomicznego we Wrocławiu. Patronat nad tegoroczną edycją Warsztatów Metodologicznych objął TAURON Dystrybucja Spółka Akcyjna.
The aim of this article was the search of the dynamic of dependencies between WSE and other countries coming from Europe, America and Asia. The two-dimensional time series has been modeled by multidimensional GARCH process with dynamic condi-tional correlation or by Markov-switching Copula-GARCH model. The analysis confirms the claim that dependences between financial markets are higher in a period...
The main purpose of the article is to describe the state of the art in using big data in official statistics. The article presents selected examples of how data from mobile operators, sensors, social media or scanners are used by national statistical offices. The authors also identify chances, challenges and risks related to the use of big data in the field of official statistics.
The risk of consumer behaviour, as a part of the widely understood studies on risk, is still an uncharted and undiscovered area of human activity. The main goal of this paper is to draw attention to the issue of the measurement of risk perceived by the consumers` unsuccessful purchase, as well as presenting a multidimensional analysis of data on risk research perceived by consumers in the decision...
The paper summarizes empirical research finalizing the first stage of the scientific project aimed at hedonic methods application in adjusting price indices in cases when variability in quality of goods is observed. A hedonic model describes the price of the heterogeneous good by a set of its relevant attributes, and thus it can be helpful in distinguishing the price change level resulting from quality-related...
The authors conceived a new simple method for creating the approximation of the border of investment opportunities. The method enumerates all the possibilities of assigning weights to the investment portfolio. It does not enable short sales. The software which the authors coded is written in VBA and also enables active management. The method is simple, accurate but demanding. The authors also created...
The key research goal is to identify predictors of retail chain space development in Poland, as well as to define if there is any spatial correlation between increasing retail area and the spatial proximity of the other malls. In order to do so, the study covers an analysis of the retail area in Poland in the framework of the socio-economic development of cities. The study covers a macroeconomic overview...
The research paper is focused on the assessment of the usefulness of adaptive methods in forecasting demographic variables. The goal of the paper is to conduct the retro and prospective analysis of selected demographic values in the sphere of changes in time, and also to indicate an efficient method for the forecasting of the studied values in subsequent periods. The time series for Poland for the...
While building predictive models in analytical CRM, researchers often encounter the problem of imbalanced classes (skewed distributions of dependent variables), which consists in the fact that the number of observations belonging to one category of the dependent variable is much lower than the number of observations belonging to the second category of that variable. This is related to such areas as...
The paper concerns the model of aspects of ethical competencies of human capital development in information systems in a transition economy, on the Polish labor market. The purpose of the research is to verify the association of Human Potentiality (HP) and Organizational Citizenship Behavior (OCB) among 263 IT users in relation to their professional position, in Poland. The authors used two new questionnaires...
Knowledge-intensive business services are one of the most dynamically developing areas in contemporary economies and at the same time they constitute one of the fundamental pillars of a knowledge economy. The services are provided by private enterprises, the activity of which is mostly based on the professional knowledge of workers. They supply knowledge-based products and services delivering satisfaction...
The main aim of the article is to present the spatial differentiation of crime in Poland. Were taken into account main types of offenses: criminal, economic and road. Statistical analysis and application of Weber’s median allowed to characterize crime in Poland and to rank the sub-regions due of the risk level of crime. In the study were used spatial and time data included, among others, in the Regional...
Credibility of prognoses is of crucial importance for the processes of economic organization management. It is not only a problem of management boards of huge corporations, but also small economic entities. Prognoses are required by individual daily decision-making processes too. Authors of scientific work emphasize poor creditworthiness of prognoses. They foresaw neither the crisis on the New York...
The aim of the study has a theoretical and researching character. The first part includes the presentation of scientific achievements in foreign and Polish literature and the authorial systematics of methods of firms’ life duration analysis (statistical and econometric study of firms cohorts). Methods of data censoring are discussed. The empirical part presents examples of the results of economic...
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