Working Papers from Department of Applied Econometrics http://hdl.handle.net/20.500.12182/1345 2026-04-09T18:46:02Z 2026-04-09T18:46:02Z Welfe, Aleksander Kębłowski, Piotr http://hdl.handle.net/20.500.12182/1403 2026-04-09T18:07:38Z 2006-01-01T00:00:00Z

Price-wage system with taxation: multivariate cointegration analysis Welfe, Aleksander; Kębłowski, Piotr The paper investigates the price system and the wage equation in the presence of taxes. Price formation is analysed at three levels: producer’s prices, trade in consumer goods and, separately, in services, and at the aggregate level of the cost of living index. This is in the spirit of classical macromodels that usually apply the “bottom-to-top” approach. However, because of nonstationarity of variables, this study employs multivariate cointegration. The empirical investigation is based on Polish monthly data covering the period from January 1993 to December 2003. Its results allow to conclude that as many as five stable long-run relationships drove inflation in Poland in that period. Appropriate decomposition of price formation made it possible to incorporate all conditions postulated by economic theory (i.e. homogeneity, unit elasticities) and to show how direct and indirect taxes impact decisions made by the employers and employees.

2006-01-01T00:00:00Z Kellman, Mitchell H. Shachmurove, Yochanan http://hdl.handle.net/20.500.12182/1401 2026-04-09T18:09:04Z 2012-01-01T00:00:00Z

Trade sophistication in a transition economy: Poland 1980-2009 Kellman, Mitchell H.; Shachmurove, Yochanan Poland has historically demonstrated exceptional resiliency in the face of change. This paper examines how Poland coped with huge structural realignments from the rise of Solidarity until the present, seeking to provide an objective analysis of Poland’s evolution of trade structures while it developed into a competitive member of the European Union. Em-ploying four methodologically unrelated measures, this study looks at how the degree of so-phistication of Poland’s manufactures responded and contributed to these changes. The result is that each distinct index reveals a common trend of rapid adaptation within the competitive environment of the European Union.

2012-01-01T00:00:00Z Myśliwski, Mateusz http://hdl.handle.net/20.500.12182/1400 2026-04-09T18:05:07Z 2011-01-01T00:00:00Z

A microeconometric analysis of album sales success in the Polish music market Myśliwski, Mateusz The aim of this paper is twofold. Firstly, we attempt to investigate the challenges for the constantly changing music industry on the ex- ample of Poland, positing a conclusion that both artists and lables could pro t from a precisely determined set of factors in uencing the ultimate sales success. On the other hand, the article intends to ll the gap between record industry analyses an econometric literature, as in the course of research, we found that the use of quantitative methods is rarely encountered in such analyses. The study uses a self-compiled dataset, containing information on 619 albums, which appeared on the O cial Sales Chart (OLiS) between 2008 and 2009. We propose three models for di erent quantitative variables and summarize the obtained results, stating that the use of microeconometric methods in this area of research seems promising.

2011-01-01T00:00:00Z Tomczyk, Emilia http://hdl.handle.net/20.500.12182/1399 2026-04-09T18:13:45Z 2010-01-01T00:00:00Z

Application of measures of entropy, information content and dissimilarity of structures to business tendency survey data Tomczyk, Emilia This paper evaluates similarities between a priori information supplied by the business tendency surveys (that is, expectations), and a posteriori information (that is, realizations). A priori structure is defined by fractions of respondents expressing expectations, and a posteriori structure – by fractions of respondents declaring observed changes in economic variables (realizations). On the basis of empirical analysis of the business tendency survey data, the following conclusions have been reached: - in case of production, distribution of increase / no change / decrease fractions is relatively uniform, leading to high entropy, - entropy of prices is relatively low; since value of entropy allows to evaluate degree of concentration, in case of prices fractions of survey answers seems to be particularly centered on one of the three options provided in the questionnaire, - entropy of general business conditions exhibits the highest variability which may be interpreted as volatile changes in information content of surveys from one month to another; in contrast, entropy of production is the least variable, - public enterprises exhibit lower entropy (as measured by average) and higher variability (as measured by standard deviation) than private enterprises; that is, for public enterprises concentration of answers to the survey questions is higher and also more variable.

2010-01-01T00:00:00Z