Demetris Christopoulos

National and Kapodistrian University of Athens - Faculty of Economics

PhD candidate

1 Sofokleous and Aristidou str.

Athens, 10559

Greece

http://users.uoa.gr/~dchristop/

  • National and Kapodistrian University of Athens - Faculty of Economics

SCHOLARLY PAPERS

4

DOWNLOADS

747

SSRN CITATIONS

0

CROSSREF CITATIONS

1

Scholarly Papers (4)

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1.

Introducing Unit Invariant Knee (UIK) As an Objective Choice for Elbow Point in Multivariate Data Analysis Techniques

Number of pages: 7 Posted: 27 Sep 2017
Demetris Christopoulos
National and Kapodistrian University of Athens - Faculty of Economics
Downloads 267 (210,926)
Citation 10

Abstract:

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elbow criterion, factor analysis, PCA, archetypal analysis, cluster analysis, scree plot, variance explained, knee point, EDE

2.

A New Framework for Characterizing the Psychology of Nations

INSEAD Working Paper No. 2022/16/MKT
Number of pages: 131 Posted: 24 Mar 2022
David Midgley, Sunil Venaik, Demetris Christopoulos, Jason Rentfrow, jeff potter and Samuel D. Gosling
INSEAD - Marketing, affiliation not provided to SSRN, National and Kapodistrian University of Athens - Faculty of Economics, University of Cambridge - Department of Psychology, affiliation not provided to SSRN and University of Texas at Austin
Downloads 261 (214,978)

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Nations, Personality, Composition, National Psychology, Big Five, Archetypal Analysis

3.

Diversity and Unity of the Global Mosaic: Reimagining National Culture in the 21st century

INSEAD Working Paper No. 2019/03/MKT
Number of pages: 61 Posted: 11 Jan 2019
David Midgley, Sunil Venaik and Demetris Christopoulos
INSEAD - Marketing, University of Queensland - Business School and National and Kapodistrian University of Athens - Faculty of Economics
Downloads 110 (451,552)
Citation 1

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National Culture, Culture Archetypes, National Mixtures, Schwartz Values Configurations, World Values Survey, Archetypal Analysis

4.

Roots, Extrema and Inflection Points by using Taylor Regression Procedure

Number of pages: 6 Posted: 12 Jul 2017
Demetris Christopoulos
National and Kapodistrian University of Athens - Faculty of Economics
Downloads 109 (454,671)
Citation 3

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Taylor series, Taylor regression, polynomial regression, root, extreme, inflection, OLS