Application of Regression Modeling to Data Observed Over Time

The central idea of this text is to guide researchers through the application of regression modeling when the data under analysis are observed over time. In general, there are no doubts regarding the application of this modeling in cross sections. However, when there is dependence on the data over t...

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Main Authors: Cléber da Costa Figueiredo, Aldy Fernandes da Silva
Format: Article
Language:English
Published: Escola Superior de Propaganda e Marketing - ESPM 2018-09-01
Series:Internext: Revista Eletrônica de Negócios Internacionais
Subjects:
Online Access:https://internext.espm.br/internext/article/view/477
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author Cléber da Costa Figueiredo
Aldy Fernandes da Silva
author_facet Cléber da Costa Figueiredo
Aldy Fernandes da Silva
author_sort Cléber da Costa Figueiredo
collection DOAJ
description The central idea of this text is to guide researchers through the application of regression modeling when the data under analysis are observed over time. In general, there are no doubts regarding the application of this modeling in cross sections. However, when there is dependence on the data over time, some care needs to be taken for the results to be reliable and have the same interpretation of the coefficients obtained using the least squares method. The text begins with a presentation of the concept of autocorrelation and partial autocorrelation to identify and apply autoregressive modeling. Following this approach, the Augmented Dickey-Fuller test for detecting stationarity is presented, an essential condition for the estimators of ordinary least squares to be consistent. The Granger causality test is also presented and an example of regression applied to the series of the Cost of Living Index and the National Price Index for General Consumers. All the examples are presented with the help of Microsoft Excel to universalize the technique.
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spelling doaj.art-c8e355e96fc9489ab7a7ff760f7a30e12022-12-21T17:49:57ZengEscola Superior de Propaganda e Marketing - ESPMInternext: Revista Eletrônica de Negócios Internacionais1980-48652018-09-01133425010.18568/1980-4865.13342-50265Application of Regression Modeling to Data Observed Over TimeCléber da Costa Figueiredo0Aldy Fernandes da Silva1Escola Superior de Propaganda e Marketing - ESPM.Fundação Escola de Comércio Álvares Penteado – FECAP.The central idea of this text is to guide researchers through the application of regression modeling when the data under analysis are observed over time. In general, there are no doubts regarding the application of this modeling in cross sections. However, when there is dependence on the data over time, some care needs to be taken for the results to be reliable and have the same interpretation of the coefficients obtained using the least squares method. The text begins with a presentation of the concept of autocorrelation and partial autocorrelation to identify and apply autoregressive modeling. Following this approach, the Augmented Dickey-Fuller test for detecting stationarity is presented, an essential condition for the estimators of ordinary least squares to be consistent. The Granger causality test is also presented and an example of regression applied to the series of the Cost of Living Index and the National Price Index for General Consumers. All the examples are presented with the help of Microsoft Excel to universalize the technique.https://internext.espm.br/internext/article/view/477dados longitudinaisestacionariedademodelos autorregressivoscausalidade de grangerdefasagem
spellingShingle Cléber da Costa Figueiredo
Aldy Fernandes da Silva
Application of Regression Modeling to Data Observed Over Time
Internext: Revista Eletrônica de Negócios Internacionais
dados longitudinais
estacionariedade
modelos autorregressivos
causalidade de granger
defasagem
title Application of Regression Modeling to Data Observed Over Time
title_full Application of Regression Modeling to Data Observed Over Time
title_fullStr Application of Regression Modeling to Data Observed Over Time
title_full_unstemmed Application of Regression Modeling to Data Observed Over Time
title_short Application of Regression Modeling to Data Observed Over Time
title_sort application of regression modeling to data observed over time
topic dados longitudinais
estacionariedade
modelos autorregressivos
causalidade de granger
defasagem
url https://internext.espm.br/internext/article/view/477
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