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Wyświetlanie 1-15 z 2158
Tytuł:
Proposition of a hybrid price index formula for the Consumer Price Index measurement
Autorzy:
Białek, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/22444366.pdf
Data publikacji:
2020
Wydawca:
Instytut Badań Gospodarczych
Tematy:
price index
Consumer Price Index
Lowe index
Young index
hybrid price index
Opis:
Research background: The Consumer Price Index (CPI) is a basic, commonly accepted and used measure of inflation. The index is a proxy for changes in the costs of household consumption and it assumes constant consumer utility. In practice, most statistical agencies use the Laspeyres price index to measure the CPI. The Laspeyres index does not take into account movements in the structure of consumption which may be consumers' response to price changes during a given time interval. As a consequence, the Laspeyres index can suffer from commodity substitution bias. The Fisher index is perceived as the best proxy for the COLI but it needs data on consumption from both the base and research period. As a consequence, there is a practical need to look for a proxy of the Fisher price index which does not use current expenditure shares as weights. Purpose of the article: The general purpose of the article is to present a hybrid price index, the idea of which is based on the Young and Lowe indices. The particular aim of the paper is to discuss the usefulness of its special case with weights based on correlations between prices and quantities. Methods: A theoretical background for the hybrid price index (and its geometric version) is constructed with the Lowe and Young price indices used as a starting point. In the empirical study, scanner data on milk, sugar, coffee and rice are utilized to show that the hybrid index can be a good proxy for the Fisher index, although it does not use the expenditures from the research period. Findings & Value added: The empirical and theoretical considerations con-firm the hybrid nature of the proposed index, i.e. in a special case it forms the convex combination of the Young and Lowe indices. This study points out the usefulness of the proposed price index in the CPI measurement, especially when the target index is the Fisher formula. The proposed general hybrid price index formula is a new one in the price index theory. The proposed system of weights, which is based on the correlations between prices and quantities, is a novel idea in the price index methodology.
Źródło:
Equilibrium. Quarterly Journal of Economics and Economic Policy; 2020, 15, 4; 697-716
1689-765X
2353-3293
Pojawia się w:
Equilibrium. Quarterly Journal of Economics and Economic Policy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Some remarks on the original price index inspired by the notes of peter von der lippe
Autorzy:
Białek, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/424787.pdf
Data publikacji:
2013
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
price index
generalized price index
Laspeyres index
Paasche’s index
Fisher’s index
Białek’s index
Opis:
We discuss an original price index formula presented in Białek [2012a] and Białek [2012b]. The inspiration for this discussion are the correlated notes of Prof. Peter von der Lippe. This article presents the author’s point of view on the problems considered by Prof. Peter von der Lippe and some other properties of the discussed formula.
Źródło:
Econometrics. Ekonometria. Advances in Applied Data Analytics; 2013, 3(41); 40-54
1507-3866
Pojawia się w:
Econometrics. Ekonometria. Advances in Applied Data Analytics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Special Cases of Some General Formula for Price Indices
Szczególne przypadki pewnej ogólnej formuły indeksów cen
Autorzy:
Białek, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/906853.pdf
Data publikacji:
2012
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
price indices
Laspeyres index
Paasche index
Fisher index
Marhall-Edgeworth index
Geary-Khamis index
Walsh index
Opis:
In the paper we present a general formula for aggregative price indices that satisfies most postulates coming from the axiomatic price index theory. We show that a lot of known and useful price indices are particular cases of the discussed formula
Źródło:
Acta Universitatis Lodziensis. Folia Oeconomica; 2012, 269
0208-6018
2353-7663
Pojawia się w:
Acta Universitatis Lodziensis. Folia Oeconomica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Average Price Dynamics and Indexes of Price Dynamics - Discrete Time Stochastic Model
Przeciętna dynamika cen produktów a indeksy agregatowe cen - matematyczny model stochastyczny z czasem dyskretnym
Autorzy:
Białek, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/905682.pdf
Data publikacji:
2006
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
Törnqvist index
Laspeyres index
Paasche index
Fisher ideal index
Lexis index
martingale
Opis:
In this paper we define two indexes of the average price dynamics in a discrete time stochastic model. Several properties of these indexes are proven, the other are presented by examples. In particular, it is shown that one of the indexes is a martingale provides the prices of products form a (vector) martingale. In addition it is also shown that only one definition satisfies all given postulates. We compare this definition with price indexes.
W artykule zaprezentowano dwie definicje indeksu przeciętnej dynamiki cen produktów w modelu stochastycznym z czasem dyskretnym. Przedstawiono ich podstawowe własności; niektóre z nich zostały udowodnione, inne - poparte przykładami. Ponadto udowodniono, iż jedna z definicji stanowi martyngał, jeśli tylko procesy cen poszczególnych produktów również są martyngałami. Jednocześnie okazało się, iż tylko jedna definicja posiada wszystkie wymagane własności. Na końcu niniejszego artykułu dokonano porównania rekomendowanej definicji z klasycznymi agregatowymi indeksami cen. Okazało się, iż w przypadku gdy rozważany interwał czasowy zawiera dwa okresy produkcyjne, to przy pewnych dodatkowych założeniach proponowana definicja daje się aproksymować klasycznymi indeksami Fishera, Tömqvista i innymi.
Źródło:
Acta Universitatis Lodziensis. Folia Oeconomica; 2006, 196
0208-6018
2353-7663
Pojawia się w:
Acta Universitatis Lodziensis. Folia Oeconomica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Remarks About The Generalizations of The Fisher Index
Autorzy:
Białek, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/466098.pdf
Data publikacji:
2011
Wydawca:
Główny Urząd Statystyczny
Tematy:
Price index
generalized Fisher index
Laspeyres index
Paasche index
Marhall-Edgeworth index
Opis:
In Fisher’s index theory the crossing of formulas and weights was regarded as the most pertinent method to derive an “ideal” index formula. The well known Fisher index is a geometric mean of Laspeyres and Paasche indexes and it satisfies most of the postulates coming from the axiomatic index theory. In this paper we consider the generalized Fisher index. The purpose of the study is to propose and discuss some more general class of indexes including the generalized Fisher index.
Źródło:
Statistics in Transition new series; 2011, 12, 1; 139-156
1234-7655
Pojawia się w:
Statistics in Transition new series
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative study of meteorological and hydrological drought characteristics in the Pekalen River basin, East Java, Indonesia
Autorzy:
Harisuseno, Donny
Powiązania:
https://bibliotekanauki.pl/articles/946923.pdf
Data publikacji:
2020
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
drought index
rainfall anomaly index
standardized precipitation index
standardized streamflow index
Opis:
Drought is known as a normal part of climate and including in a slow-onset natural hazard which may have several impacts on hydrology, agriculture, and socioeconomic. Drought monitoring, including its severity, spatial and duration is required and becomes an essential input for establishing drought risk management and mitigation plan. Many drought indices have been introduced and applied in regions with different climate characteristics in the last decades. This paper aims to compare standardized precipitation index (SPI) and rainfall anomaly index (RAI) along with standardized streamflow index (SSI) in Pekalen River Basin, East Java, Indonesia. The statistical association analyses, included the Pearson correlation (r), Kendal tau (τ), and Spearman rho (rs) were performed to examine the degree of consistency between monthly and annual drought index of SPI and RAI. Additionally, the comparative analysis was performed by overlapping both monthly and annual drought index from the SPI and RAI with the SSI at hydrological years. The study revealed that the characteristic of the annual drought index between the SPI and RAI exhibits pattern similarity which indicated by the high correlation coefficient between them. Further, the comparative analysis on each hydrological year showed that the SPI and RAI were very well correlated and exhibited a similar pattern with the SSI. Overall, the SPI shows better performance than the RAI for estimating drought characteristic either monthly or annual basis. Hence, the SPI is considered as a reliable and effective tool for analyzing drought characteristic in the study area.
Źródło:
Journal of Water and Land Development; 2020, 45; 29-41
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The relationship between inflation and stock index in ten the last ten years, in Tehran stock exchange
Autorzy:
Ahmadi, Freyedon
Powiązania:
https://bibliotekanauki.pl/articles/1191431.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Inflation index
stock index
industry index
Tehran Stock Exchange
Opis:
The present study investigated the relationship between inflation and stock index at Tehran Stock Exchange for the last ten years. For access to this aims are selected total of companies that their share is accepted in Tehran stock exchange in years 2005-2014. This research is based on the objective and the method of data collection is descriptive. Pearson correlation, regression equation and path analysis were used to determine the relationship between variables. The results of this study are indicated there are positive and meaningful correlations between inflation and stock index as well as industry index. With increase of inflation these index increase too.
Źródło:
World Scientific News; 2016, 40; 34-57
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wady i zalety wskaźnika cen towarów i usług konsumpcyjnych – szacunki obciążenia
The Strengths and Weaknesses of the Consumer Price Index: Estimates of the Measurement Bias for Poland
Autorzy:
Hałka, Aleksandra
Leszczyńska, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/574277.pdf
Data publikacji:
2011-09-30
Wydawca:
Szkoła Główna Handlowa w Warszawie. Kolegium Analiz Ekonomicznych
Tematy:
Inflation
CPI bias
Fisher index
Laspeyres index
democratic index
Opis:
The article deals with the problem of a measurement bias related to the consumer price index (CPI) for Poland. According to the authors, the bias is due to two basic factors: a substitution effect and the use of plutocratic weights for calculating the price index. The research was conducted comparing the CPI index published in Poland with superlative indices and a democratic index. The calculations were made on the basis of data from the 2005-2009 period. The research did not confirm the occurrence of an upward bias for the CPI index, the authors say, and the results point to a slight underestimation of the CPI as a result of the substitution effect and the use of plutocratic weights: by 0.1 and 0.3 percentage points respectively. The negative bias resulting from the substitution effect is an atypical result in the context of research for other countries. A deeper analysis revealed that this situation may be explained in two ways, the authors say. On the one hand, the lack of overestimation may be due to frequent changes in the structure of weights used to calculate the CPI, which leads to better adaptation of the indicator to changes taking place in the structure of consumption. On the other hand, the prices of consumer goods and services-which are subject to relatively stable demand-grew at a faster rate than the CPI index in the analyzed period, and a positive rate of growth has been observed in real household incomes over the past decade. In turn, the examination of the “plutocratic gap” revealed that the CPI (plutocratic) index for Poland is lower than the democratic index, the authors say. They conclude that the result of the examination of the “plutocratic gap” is compatible with research for other countries.
Źródło:
Gospodarka Narodowa. The Polish Journal of Economics; 2011, 250, 9; 51-75
2300-5238
Pojawia się w:
Gospodarka Narodowa. The Polish Journal of Economics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Preliminary Study Into the Possibility of δ13C Being Used as a Sensitive Indicator of the Trophic and Hydrobiological Status of Aquatic Ecosystems
Autorzy:
Bartoszek, L.
Koszelnik, P.
Zamorska, J.
Gruca-Rokosz, R.
Zdeb, M.
Powiązania:
https://bibliotekanauki.pl/articles/124458.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
reservoir
trophic status
Carlson index
saprobic index
isotopic index
Opis:
There is a need to search for additional indicators allowing for more accurate identification of both the trophic status of waters as well as its chemical and biological consequences. The work detailed in this paper involved a preliminary analysis pertaining to the possibility of using an isotopic index in association with the values for trophic and saprobic indicators in describing a dam reservoir experiencing a far-reaching eutrophication. The water samples for the physicochemical analysis were collected from three sites along the axis of the dam reservoir in Rzeszów three times during the spring and summer of 2013. The results sustained the classification of the Reservoir's waters as hypertrophic, irrespective of the particular zone sampled. While phytoplankton blooms characterised by reference to the numbers of organisms per unit volume of water were also similar throughout the Reservoir, diversification in terms of taxonomic composition was to be noted, given the occurrence of cyanobacteria among the dominant diatoms in the area close to the dam. This presence was accompanied by enrichment of the Reservoir's suspended organic matter with carbon of the heavier 13C isotope. On this basis, the δ13C isotopic index can be regarded as a potentially useful indicator allowing for more accurate identification of both the level and the nature of the ongoing trophic degradation in bodies of water.
Źródło:
Journal of Ecological Engineering; 2018, 19, 6; 191-198
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of the Gini and Zenga indexes using some theoretical income distributions abstract
Autorzy:
Ostasiewicz, K.
Mazurek, E.
Powiązania:
https://bibliotekanauki.pl/articles/406371.pdf
Data publikacji:
2013
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
inequality
Gini index
Zenga index
Opis:
The most common measure of inequality used in scientific research is the Gini index. In 2007, Zenga proposed a new index of inequality that has all the appropriate properties of an measure of equality. In this paper, we compared the Gini and Zenga indexes, calculating these quantities for the few distributions frequently used for approximating distributions of income, that is, the lognormal, gamma, inverse Gauss, Weibull and Burr distributions. Within this limited examination, we have observed three main differences. First, the Zenga index increases more rapidly for low values of the variation and decreases more slowly when the variation approaches intermediate values from above. Second, the Zenga index seems to be better predicted by the variation. Third, although the Zenga index is always higher than the Gini one, the ordering of some pairs of cases may be inverted.
Źródło:
Operations Research and Decisions; 2013, 23, 1; 37-62
2081-8858
2391-6060
Pojawia się w:
Operations Research and Decisions
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of E-administration Services in Poland
Autorzy:
Świątek, Władysław
Powiązania:
https://bibliotekanauki.pl/articles/2034645.pdf
Data publikacji:
2019-10-10
Wydawca:
Wyższa Szkoła Finansów i Prawa w Bielsku-Białej
Tematy:
administration, public administration
E-Government Digital Index
Human Capital index
Telecommunication Infrastructure Index
Online Service Index
Opis:
Advances in information and communication technologies impact the requirements the citizens have with respect to state administration. Nowadays, the citizens expect continuous expansion of electronic channels in administration to be able to access various offices and settle their administrative affairs online. The purpose of this publication is to present the current state of development of e-administration in Poland and to highlight the barriers that must be overcome in order to assure smooth operating of e-administration platforms which are supposed to be user friendly and reduce the costs of functioning of the State. This study presents a method of measuring the level of digitization of public administration by means of the E-Government Digital Index. Conditions for development of e-services in Poland as compared to other countries and the use of available e-services in Polish voivodships are also presented. The data used in this study were provided by the Central Statistical Office and the United Nations Department of Economic and Social Affairs.
Źródło:
Zeszyty Naukowe Wyższej Szkoły Finansów i Prawa w Bielsku-Białej; 2019, 3; 72-83
2084-1809
Pojawia się w:
Zeszyty Naukowe Wyższej Szkoły Finansów i Prawa w Bielsku-Białej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Notes on topological indices of graph and its complement
Autorzy:
Madaras, T.
Mockovciakova, M.
Powiązania:
https://bibliotekanauki.pl/articles/254698.pdf
Data publikacji:
2013
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
Wiener index
Zagreb index
Randic index
bipartite graph
bipartite complement
Opis:
In this note, we derive the lower bound on the sum for Wiener index of bipartite graph and its bipartite complement, as well as the lower and upper bounds on this sum for the Randić index and Zagreb indices. We also discuss the quality of these bounds.
Źródło:
Opuscula Mathematica; 2013, 33, 1; 107-115
1232-9274
2300-6919
Pojawia się w:
Opuscula Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wiener and vertex PI indices of the strong product of graphs
Autorzy:
Pattabiraman, K.
Paulraja, P.
Powiązania:
https://bibliotekanauki.pl/articles/743324.pdf
Data publikacji:
2012
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
strong product
Wiener index
hyper-Wiener index
vertex PI index
Opis:
The Wiener index of a connected graph G, denoted by W(G), is defined as $½ ∑_{u,v ∈ V(G)}d_G(u,v)$. Similarly, the hyper-Wiener index of a connected graph G, denoted by WW(G), is defined as $½W(G) + ¼ ∑_{u,v ∈ V(G)} d²_G(u,v)$. The vertex Padmakar-Ivan (vertex PI) index of a graph G is the sum over all edges uv of G of the number of vertices which are not equidistant from u and v. In this paper, the exact formulae for Wiener, hyper-Wiener and vertex PI indices of the strong product $G ⊠ K_{m₀,m₁,...,m_{r -1}}$, where $K_{m₀,m₁,...,m_{r -1}}$ is the complete multipartite graph with partite sets of sizes $m₀,m₁, ...,m_{r -1}$, are obtained. Also lower bounds for Wiener and hyper-Wiener indices of strong product of graphs are established.
Źródło:
Discussiones Mathematicae Graph Theory; 2012, 32, 4; 749-769
2083-5892
Pojawia się w:
Discussiones Mathematicae Graph Theory
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improving the Quality of Education by Integrating Network Universities and Business
Autorzy:
Serada, Tatsiana
Varanko, Elvira
Powiązania:
https://bibliotekanauki.pl/articles/2135763.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet w Białymstoku. Wydawnictwo Uniwersytetu w Białymstoku
Tematy:
integration
education
education index
human development index
life expectancy index
income index
global happiness index
network university
dual learning
Opis:
Goal – this article’s main goal is to show the need for the integration of universities on the basis of the processes of network interaction between business and education as one of the conditions for improving the quality of education in the country, and accordingly the index of education and the human development index of the country. Research methodology – the authors used analytical, economic, statistical methods of data analysis, conceptual and empirical research. Score/results – the article reveals the essence and substantiates the need to implement of the practice‑oriented education system by using the dual training system and creating of network interaction between universities in different countries. The advantages of such a model are revealed in comparison with the traditional form of training for the employer, educational institution, future specialist and the state. The instruments and forms of development of trilateral integration are described. Originality/value – the article presents the results of a comparative study of the human development of Belarus and its four neighbouring countries (Poland, Lithuania, Russia, Ukraine), has theoretical and practical significance, contains the author’s generalizations and conclusions.
Źródło:
Studia Sieci Uniwersytetów Pogranicza; 2020; 139-151
2544-5790
Pojawia się w:
Studia Sieci Uniwersytetów Pogranicza
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Phytocenological approach in biomonitoring of the state of aquatic ecosystems in Ukrainian Polesie
Autorzy:
Fedonyuk, Tetiana P.
Fedoniuk, Roman H.
Zymaroieva, Anastasiia A.
Pazych, Viktor M.
Aristarkhova, Ella O.
Powiązania:
https://bibliotekanauki.pl/articles/293038.pdf
Data publikacji:
2020
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
biodiversity
biomonitoring
macrophytes
Margalef index
Pielou index
Shannon index
Simpson index
surface water
water quality
Opis:
The results of a research into the scale and consequences of the degradation of aquatic ecosystems in Ukrainian Polesie have been detected in article, and the areas of increased anthropogenic pressure have been identified which greatly affect the condition and number of aquatic macrophytes. The biodiversity of sites with different anthropogenic load was evaluated using the biodiversity criteria. In the research, the structural and functional features of macrophytic species diversity within Teteriv River ecological corridor as a typical river landscape of Ukrainian Polesie were determined and described, the floristic composition was determined. Within the ecological zones, the number of species and their projective coverage in areas with different anthropogenic pressures within Teteriv River ecological corridor were determined. The basic criteria for the implementation of deferred biomonitoring based on the analysis of the dynamics of the species composition of the phytocoenoses of Teteriv River ecological corridor on the indicators of ecological stability and plasticity using the species-specific criteria, are: Margalef species richness index, Sørensen–Dice index, Shannon diversity index, Simpson’s index, and Pielou’s evenness index. Based on the results, correlation dependencies have been constructed, which will allow to obtain data on the stability of the development of aquatic ecosystems according to the data of species surveys. Interconnections between biodiversity indicators and indicators of surface water quality within the Ukrainian Polesie were found; they are the fundamental component of a long-term monitoring of the stability in the development of aquatic phytocenoses.
Źródło:
Journal of Water and Land Development; 2020, 44; 65-74
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
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