Název: On the Effect of Human Resources on Tourist Infrastructure: New Ideas on Heteroscedastic Modeling Using Regression Quantiles
Autoři: Kalina, Jan ; Janáček, Patrik
Typ dokumentu: Příspěvky z konference
Konference/Akce: RELIK 2020: The International Conference /13./, Prague (CZ), 20201105
Rok: 2020
Jazyk: eng
Abstrakt: Tourism represents an important sector of the economy in many countries around the world. In this work, we are interested in the effect of the Human Resources and Labor Market pillar of the Travel and Tourism Competitiveness Index on tourist service infrastructure across 141 countries of the world. A regression analysis requires to handle heteroscedasticity in these data, which is not an uncommon situation in various available human capital studies. Our first task is focused on testing significance of individual variables in the model. It is illustrated here that significance tests are influenced by heteroscedasticity, which remains true also for tests for regression quantiles or robust regression estimators, resistant to a possible contamination of data by outliers. Only if a suitable model is considered, which takes heteroscedasticity into account, the effect of the Human Resources and Labor Market pillar turns out to be significant. Further, we propose and present a new diagnostic tool denoted as aquintile plot, allowing to interpret immediately the heteroscedastic structure of the linear regression model for possibly contaminated data.
Klíčová slova: human resources; regression; regression quantiles; robustness; tourism infrastructure
Číslo projektu: GA19-05704S (CEP), GA18-01137S (CEP)
Poskytovatel projektu: GA ČR, GA ČR
Zdrojový dokument: RELIK 2020. Conference Proceedings, ISBN 978-80-245-2394-1

Instituce: Ústav informatiky AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný na externích webových stránkách.
Externí umístění souboru: https://relik.vse.cz/2020/download/pdf/294-Kalina-Jan-paper.pdf
Původní záznam: http://hdl.handle.net/11104/0313660

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-432448


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