Full-text resources of CEJSH and other databases are now available in the new Library of Science.
Visit https://bibliotekanauki.pl

Results found: 2

first rewind previous Page / 1 next fast forward last

Search results

help Sort By:

help Limit search:
first rewind previous Page / 1 next fast forward last
1
Publication available in full text mode
Content available

Elasticity of consumer demand: estimation using a QuadRatic Almost Ideal Demand System

100%
Gostkowski M.
Econometrics. Ekonometria. Advances in Applied Data Analytics
|
2018
|
issue vol. 22 no. 1
68-78
EN
This paper analyzes consumer demand using a Quadratic Almost Ideal Demand System (QUAIDS), which is an extension of an Almost Ideal Demand System (a complete demand system). Complete demand system models can be used to find the relationships that are impossible to discover using single-equation models. Additionally, the QUAIDS model can be used to model a nonlinear Engel curve. The research was based on household microeconomic data collected by GUS (the Polish Central Statistical Office) in the period 1999-2015. The complete demand model has been extended by demographic variable. The results show that the QUAIDS model does not reduce to the AIDS model and is an adequate tool to analyze consumer demand.
2
Publication available in full text mode
Content available

PORÓWNANIE MODELU REGRESJI WIELORAKIEJ ORAZ DRZEWA REGRESYJNEGO NA PRZYKŁADZIE INDEKSU KORUPCJI

51%
Gostkowski M., Gajowniczek K., Jałowiecki P.
Metody Ilościowe w Badaniach Ekonomicznych
|
2014
|
vol. 15
|
issue 3
65-74
PL
W pracy przedstawiono wyniki badań nad modelowaniem tzw. indeksu korupcji (ang. Failed States Index). Zbudowano i porównano model regresji wielorakiej z drzewem regresyjnym. Badania zostały oparte na podstawie danych publikowanych przez niezależną organizację The Fund for Peace. Jako potencjalne zmienne zostały wybrane zmienne udostępnione na stronie internetowej Banku Światowego. Wstępne wyniki jednoznacznie wskazują, że drzewo regresyjne lepiej odzwierciedla zmienność parametru niż model regresji wielorakiej.
EN
This paper presents the results of research on corruption index modeling (Failed States Index). The multiple regression model was constructed and compared with the regression tree. The research was based on the data published by an independent organization The Fund for Peace. Predictors were selected from a set of variables available on the website of the World Bank. The preliminary results clearly indicate that the regression tree better reflects the variation of the parameter than the multiple regression model.
first rewind previous Page / 1 next fast forward last
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.