Powered by OpenAIRE graph
Found an issue? Give us feedback
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ Universidade de Lisb...arrow_drop_down
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
UTL Repository
Master thesis . 2019
Data sources: UTL Repository
versions View all 2 versions
addClaim

“Sobrevoando” as vendas do distrito de Lisboa : uma análise de econometria espacial

Authors: Caguerelho, Ana Rita Geraldo;

“Sobrevoando” as vendas do distrito de Lisboa : uma análise de econometria espacial

Abstract

O incremento e a generalização do uso da tecnologia, aliados à crescente evolução da capacidade de armazenamento de dados e à sucessiva maior facilidade de computação, fomentam o interesse e a possibilidade em realizar estudos analiticamente mais sofisticados utilizando estruturas de dados complexas. Este trabalho tem como objetivo analisar um conjunto de dados espaciais sobre vendas a retalho de uma empresa na área da alimentação. Através da análise exploratória e de modelos econométricos adequados para o efeito, pretende-se perceber quais os fatores que influenciam a variação do volume de vendas nas diversas freguesias do distrito de Lisboa e a importância da dimensão espacial na explicação deste fenómeno. Da panóplia de informação disponível, foi definido um conjunto de variáveis consideradas relevantes para explicar a variação do volume de vendas de cada freguesia. Através deste conjunto de dados, procedemos a análises suportadas por softwares estatísticos e softwares com capacidade de interface gráfico, através dos quais é possível realizar análises exploratórias espaciais. Após várias análises exploratórias dos dados, chegou-se à conclusão da necessidade da inclusão de fatores que ponderem a dependência espacial. A presença de dependência espacial nos dados em análise foi também confirmada empiricamente na modelação econométrica. Esta conclusão permite-nos perceber que o volume de vendas de determinada freguesia do distrito de Lisboa é influenciado por características dessa mesma freguesia, mas também por valores do volume de vendas registados em freguesias vizinhas.

The increasing and widespread use of technology, coupled with the increasing evolution of data storage capacity and the subsequent ease of computation, fosters the interest and the possibility to perform analytically more sophisticated studies using complex data structures. This paper aims at analysing a spatial dataset on a company's food retail sales. Through both exploratory analysis and econometric models suitable for this purpose, it is intended to understand which factors influence the variation of sales volume in the various parishes of the Lisbon district and the importance of the spatial dimension in explaining this phenomenon. From the panoply of available information, a set of variables considered relevant was defined to explain the variation in the sales volume of each parish. Through this data set, we carry out analyses supported by statistical software and software with graphical interface capability, through which it is possible to perform spatial exploratory analyses. After several exploratory analyses of the data, it was concluded the need to include factors that consider spatial dependence. The presence of spatial dependence in the data under analysis was also confirmed empirically in the econometric modelling. This conclusion allows us to understand that the sales volume of a particular parish in the district of Lisbon is influenced by characteristics of that parish, but also by sales volume values registered in neighbouring parishes.

Mestrado em Métodos Quantitativos para a Decisão Económica e Empresarial

info:eu-repo/semantics/publishedVersion

Country
Portugal
Keywords

dados espaciais, Econometria espacial, análise exploratória, spatial data, dependência espacial, exploratory analysis, Spatial econometrics, spatial autocorrelation

  • BIP!
    Impact byBIP!
    selected citations
    These citations are derived from selected sources.
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    0
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
    OpenAIRE UsageCounts
    Usage byUsageCounts
    visibility views 13
    download downloads 34
  • 13
    views
    34
    downloads
    Powered byOpenAIRE UsageCounts
Powered by OpenAIRE graph
Found an issue? Give us feedback
visibility
download
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
views
OpenAIRE UsageCountsViews provided by UsageCounts
downloads
OpenAIRE UsageCountsDownloads provided by UsageCounts
0
Average
Average
Average
13
34
Green