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

25

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14,783

SSRN CITATIONS
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Top 33,231

in Total Papers Citations

12

CROSSREF CITATIONS

13

Scholarly Papers (25)

1.

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 4,496 (2,604)
Citation 5

Abstract:

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

2.

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 3,620 (3,759)
Citation 1

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

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 1,717 (12,832)
Citation 11

Abstract:

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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 1,310 (19,480)

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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 965 (30,511)

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data envelopment analysis, performance measurement, productivity, production theory

6.

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 896 (33,828)

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

7.

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 729 (44,854)
Citation 2

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canonical correlation analysis, regression, model building

8.

Robust Correlation Measures

Number of pages: 4 Posted: 07 May 2013
Chris Tofallis
University of Hertfordshire Business School
Downloads 432 (86,628)

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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 181 (211,982)

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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 171 (222,602)
Citation 1

Abstract:

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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 52 (477,871)

Abstract:

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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 42 (521,394)

Abstract:

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chaos, nonlinear dynamics

13.

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 30 (584,109)
Citation 1

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

14.

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 28 (596,293)
Citation 1

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

15.

Add or Multiply? A Tutorial on Ranking and Choosing with Multiple Criteria

Tofallis, C. (2014). Add or multiply? A tutorial on ranking and choosing with multiple criteria. INFORMS Transactions on education, 14(3), 109-119.
Number of pages: 28 Posted: 01 Apr 2021
Chris Tofallis
University of Hertfordshire Business School
Downloads 27 (602,516)
Citation 1

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multiattribute decision making; ranking; scoring; aggregation; selection; teaching management science; teaching decision analysis; multiple criteria

16.

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 23 (629,428)

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

17.

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 22 (636,488)
Citation 1

Abstract:

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efficiency, data envelopment analysis

18.

Assessing Charities Using Data Envelopment Analysis

Tofallis, Chris, and Adrian Sargeant. "Assessing charities using data envelopment analysis." In: Performance Measurement 2000: Past, Present and Future ed. A.D.Neely. Centre for Business Performance, Cranfield University (2000).
Number of pages: 9 Posted: 06 Mar 2021
Chris Tofallis and Adrian Sargeant
University of Hertfordshire Business School and Henley Management College
Downloads 12 (710,564)

Abstract:

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non-profit, efficiency, data envelopment analysis, charity

19.

Input Efficiency Profiling: An Application to Airlines

Tofallis, C. (1997). Input efficiency profiling: an application to airlines. Computers & Operations Research, 24(3), 253-258.
Number of pages: 15 Posted: 31 Mar 2021
Chris Tofallis
University of Hertfordshire Business School
Downloads 8 (742,066)

Abstract:

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efficiency, data envelopment analysis, airlines

20.

Neutral Data Fitting by Lines and Planes

Goodman, T., & Tofallis, C. (2007). Neutral data fitting by lines and planes. In Algorithms for Approximation (pp. 259-268). Springer, Berlin, Heidelberg.
Number of pages: 10 Posted: 06 Mar 2021
Tim Goodman and Chris Tofallis
affiliation not provided to SSRN and University of Hertfordshire Business School
Downloads 5 (765,675)

Abstract:

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data fitting, model fitting, regression, functional relationship

21.

Modelling Best-Practice Frontiers when there are Multiple Outputs

Tofallis C. (1997) Modelling Best-Practice Frontiers When There Are Multiple Outputs. In: Caballero R., Ruiz F., Steuer R. (eds) Advances in Multiple Objective and Goal Programming. Lecture Notes in Economics and Mathematical Systems, vol 455. Springer, Berlin, Heidelberg.
Number of pages: 9 Posted: 15 Mar 2021
Chris Tofallis
University of Hertfordshire Business School
Downloads 4 (773,335)

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data envelopment analysis, canonical correlation, benchmarking, efficiency, multicriteria

22.

Improving Discernment in DEA Using Profiling

Tofallis, C. (1996). Improving discernment in DEA using profiling. Omega, 24(3), 361-364.
Number of pages: 10 Posted: 09 Mar 2021
Chris Tofallis
University of Hertfordshire Business School
Downloads 4 (773,335)

Abstract:

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efficiency, performance measurement, data envelopment analysis

23.

Constrained Canonical Correlation Analysis on a Spreadsheet

Tofallis, C. (1999). Constrained Canonical Correlation Analysis on a Spreadsheet. Bulletin of the International Statistical Institute (1999), LVIII, Contributed Papers 3, 359-360.
Number of pages: 2 Posted: 06 Mar 2021
Chris Tofallis
University of Hertfordshire Business School
Downloads 4 (773,335)

Abstract:

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multivariate, regression, canonical correlation, performance measurement, multicriteria

24.

Multi-Criteria Efficiency Profiling

Tofallis, C. (1996). Multi-Criteria Efficiency Profiling. In Multi-Objective Programming and Goal Programming (pp. 41-49). Springer, Berlin, Heidelberg.
Number of pages: 10 Posted: 06 Mar 2021
Chris Tofallis
University of Hertfordshire Business School
Downloads 3 (781,288)

Abstract:

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Efficiency, data envelopment analysis, performance measurement, productivity, production

25.

Multicriteria Ranking Using Weights Which Minimize the Score Range

Tofallis, C. (2010). Multicriteria ranking using weights which minimize the score range. In: New developments in multiple objective and goal programming (pp. 133-140). Springer, Berlin, Heidelberg.
Number of pages: 8 Posted: 08 Mar 2021
Chris Tofallis
University of Hertfordshire Business School
Downloads 2 (790,682)

Abstract:

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multicriteria, ranking, weighting, aggregation, maximin