Chris Tofallis

University of Hertfordshire Business School

Associate Prof. of Decision Science. Principal Lecturer in Operational Research/Management Science

College Lane

Hatfield, Hertfordshire AL10 9AB

United Kingdom

http://tinyurl.com/ChrisTofallis

SCHOLARLY PAPERS

16

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12,470

SSRN CITATIONS
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Top 37,375

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2

CROSSREF CITATIONS

13

Scholarly Papers (16)

1.

Investment Volatility: A Critique of Standard Beta Estimation and a Simple Way Forward

European Journal of Operational Research, Vol. 187, pp. 1358-1367, 2008, U of Hertfordshire Business School Working Paper No. 2004:3
Number of pages: 16 Posted: 03 Jan 2008 Last Revised: 04 Apr 2019
Chris Tofallis
University of Hertfordshire Business School
Downloads 3,453 (2,878)

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investment analysis, beta, volatility, systematic risk, total beta

2.

A Better Measure of Relative Prediction Accuracy for Model Selection and Model Estimation

Journal of the Operational Research Society (2015) 66, 1352–1362
Number of pages: 25 Posted: 25 Jul 2015
Chris Tofallis
University of Hertfordshire Business School
Downloads 3,388 (2,983)
Citation 1

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prediction, forecasting, model selection, loss function, regression, time series

3.

Least Squares Percentage Regression

Journal of Modern Applied Statistical Methods, 2009
Number of pages: 12 Posted: 22 May 2009
Chris Tofallis
University of Hertfordshire Business School
Downloads 1,507 (11,654)
Citation 6

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regression, error measures, relative error, percentage regression, weighted least squares, multiplicative error, heteroscedasticity.

4.

Model Fitting for Multiple Variables by Minimising the Geometric Mean Deviation

TOTAL LEAST SQUARES AND ERRORS-IN-VARIABLES MODELING: ALGORITHMS, ANALYSIS AND APPLICATIONS, S.Van Huffel, P.Lemmerling, eds., Kluwer Academic, 2002
Number of pages: 6 Posted: 03 Jan 2008
Chris Tofallis
University of Hertfordshire Business School
Downloads 1,265 (15,332)

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Geometric mean functional relationship, least area criterion, least volume criterion

5.

Combining Two Approaches to Efficiency Measurement

Journal of the Operational Research Society, Vol. 52, No. 11, pp. 1225-1231, 2001
Number of pages: 7 Posted: 04 Mar 2009
Chris Tofallis
University of Hertfordshire Business School
Downloads 955 (23,382)

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data envelopment analysis, performance measurement, productivity, production theory

6.

Model Building with Multiple Dependent Variables and Constraints

The Statistician, Vol. 48, No. 3, pp. 371-378, 1999
Number of pages: 9 Posted: 05 Mar 2009 Last Revised: 02 Mar 2016
Chris Tofallis
University of Hertfordshire Business School
Downloads 723 (34,525)
Citation 1

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canonical correlation analysis, regression, model building

7.

Measuring Relative Accuracy: A Better Alternative to Mean Absolute Percentage Error

Hertfordshire Business School Working Paper (2013)
Number of pages: 24 Posted: 07 Nov 2013
Chris Tofallis
University of Hertfordshire Business School
Downloads 565 (47,896)

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forecasting, accuracy, error measure, loss function, scoring function, regression

8.

Robust Correlation Measures

Number of pages: 4 Posted: 07 May 2013
Chris Tofallis
University of Hertfordshire Business School
Downloads 198 (154,652)

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correlation, robust, statistics

9.

Quantifying Victory: Napoleon's Armies’ Victories and Losses

Number of pages: 18 Posted: 14 Oct 2014
Max Lenk, Ron Lenk and Chris Tofallis
Independent, Independent and University of Hertfordshire Business School
Downloads 151 (196,119)

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quantitative history, mathematical history

10.

Fitting Equations to Data with the Perfect Correlation Relationship

Hertfordshire Business School Working Paper, 2015
Number of pages: 11 Posted: 23 Dec 2015
Chris Tofallis
University of Hertfordshire Business School
Downloads 100 (267,420)
Citation 1

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data fitting, functional relationship, regression

11.

A Different Approach to University Rankings

Higher Education, 2011
Number of pages: 21 Posted: 11 Nov 2011
Chris Tofallis
University of Hertfordshire Business School
Downloads 50 (391,798)

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university rankings, league tables, performance measurement

12.

Chaotic Behaviour in a (Deterministic) Bank Account

British Review of Economic Issues, Vol. 17, No. 43, pp. 53-68, 1995
Number of pages: 9 Posted: 05 Mar 2009 Last Revised: 02 Mar 2016
Chris Tofallis
University of Hertfordshire Business School
Downloads 40 (428,090)

Abstract:

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chaos, nonlinear dynamics

13.

Selecting the Best Statistical Distribution Using Multiple Criteria

Computers & Industrial Engineering (2008) 54, 690–694
Number of pages: 8 Posted: 07 May 2013
Chris Tofallis
University of Hertfordshire Business School
Downloads 22 (514,917)

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Ranking, Selection, Statistical distributions, Multi-criteria, Multiplicative value function

14.

On Constructing a Composite Indicator with Multiplicative Aggregation and the Avoidance of Zero Weights in DEA

Journal of the Operational Research Society (2014) 65, 791–792
Number of pages: 4 Posted: 02 Mar 2016
Chris Tofallis
University of Hertfordshire Business School
Downloads 21 (520,797)

Abstract:

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efficiency, data envelopment analysis

15.

An Automatic-Democratic Approach to Weight Setting for the New Human Development Index

Journal of Population Economics, Forthcoming
Number of pages: 32 Posted: 03 Aug 2012
Chris Tofallis
University of Hertfordshire Business School
Downloads 21 (520,797)

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Human Development Index, index construction, social composite index, aggregation, ranking, data envelopment analysis

16.

Which Formula for National Happiness?

Socio-Economic Planning Sciences, 2019
Number of pages: 23 Posted: 02 May 2019
Chris Tofallis
University of Hertfordshire Business School
Downloads 11 (581,171)

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Happiness, Happiness Index, Subjective Well-Being, Multiplicative Model

Other Papers (1)

Total Downloads: 0
1.

On Constructing a Composite Indicator with Multiplicative Aggregation and the Avoidance of Zero Weights in DEA

Journal of the Operational Research Society, Vol. 65, Issue 5, pp. 791-792, 2014
Number of pages: 2 Posted: 16 Apr 2014
Chris Tofallis
University of Hertfordshire Business School
Downloads 0
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