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http://dx.doi.org/10.11627/jkise.2017.40.3.007

An Analysis of Quality Efficiency of Loan Consultants in a Bank using Shannon's Entropy and PCA-DEA Model  

Choi, Jang Ki (Department of Industrial and Management Engineering, Hannam University)
Kim, Kyeongtaek (Department of Industrial and Management Engineering, Hannam University)
Suh, Jae Joon (Department of Industrial and Management Engineering, Hanbat National University)
Publication Information
Journal of Korean Society of Industrial and Systems Engineering / v.40, no.3, 2017 , pp. 7-17 More about this Journal
Abstract
Loan consultants assist clients with loan application processing and loan decisions. Their duties may include contacting people to ask if they want a loan, meeting with loan applicants and explaining different loan options. We studied the efficiency of service quality of loan consultants contracted to a bank in Korea. They do not work as a team, but do work independently. Since he/she is not an employee of the bank, the consultant is paid solely in proportion to how much he/she sell loans. In this study, a consultant is considered as a decision making unit (DMU) in the DEA (Data Envelopment Analysis) model. We use a principal component analysis-data envelopment analysis (PCA-DEA) model integrated with Shannon's Entropy to evaluate quality efficiency of the consultants. We adopt a three-stage process to calculate the efficiency of service quality of the consultants. In the first stage, we use PCA to obtain 6 synthetic indicators, including 4 input indicators and 2 output indicators, from survey results in which questionnaire items are constructed on the basis of SERVQUAL model. In the second stage, 3 DEA models allowing negative values are used to calculate the relative efficiency of each DMU. In the third stage, the weight of each result is calculated on the basis of Shannon's Entropy theory, and then we generate a comprehensive efficiency score using it. An example illustrates the proposed process of evaluating the relative quality efficiency of the loan consultants and how to use the efficiency to improve the service quality of the consultants.
Keywords
Data Envelopment Analysis; Principal Component Analysis; Entropy; SERVQUAL;
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Times Cited By KSCI : 1  (Citation Analysis)
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1 Paradi, J.C. and Zhu, H., A Survey on Bank Branch Efficiency and Performance Research with Data Envelopment Analysis, Omega, 2013, Vol. 41, No. 1, pp. 61-79.   DOI
2 Parasuraman, A., Zeithaml, L.L., and Berry, V.A., SERVQUAL : A Multiple-item Scale for Measuring Consumer perceptions of Service Quality, Journal of Retailing, 1988, Vol. 64, No. 1, pp. 12-40.
3 Portela, S., Thanassoulis, E., and Simpson, G., Negative Data in DEA : A Directional Distance Approach Applied to Bank Branches, Journal of the Operational Research Society, 2004, Vol. 55, No. 11, pp. 1111-1121.   DOI
4 Roberts, W.A. and Chambers, T.M., Service Quality Dimensions and Satisfaction Determinants with the Alaska Ombudsman's Office, Academy of Marketing Studies Journal, 2014, Vol. 18, No. 1, pp. 113-129.
5 Sharp, J.A., Liu, W.B., and Meng, W., A Modified Slack-Based Measure Model for Data Envelopment Analysis with Natural Negative Outputs and Inputs, Journal of Operations Research Society, 2007, Vol. 58, No. 12, pp. 1672-1677.   DOI
6 Soleimani-damaneh, M. and Zarepisheh, M., Shannon's Entropy for Combining the Efficiency Results of Different DEA Models : Method and Applications, Expert Systems with Applications, 2009, Vol. 36, No. 3, pp. 5146-5150.   DOI
7 Tone, K., A Slack-based Measure of Efficiency in Data Envelopment Analysis, European Journal of Operational Research, 2001, Vol. 130, No. 3, pp. 498-509.   DOI
8 Wirtz, J. and Jerger, C., Managing Service Employees : Literature Review, Expert Opinions, and Research Directions, The Service Industries Journal, 2016, Vol. 36, Nos. 15-16. pp. 757-788.   DOI
9 Yu, T., Patterson, P.G., and de Ruyter, K., Achieving Service-Sales Ambidexterity, Journal of Service Research, 2012, Vol. 16, No. 1, pp. 52-66.   DOI
10 Arasli, H., Mehtap-Smadi, S., and Katircioglu, S.T., Customer Service Quality in the Greek Cypriot Banking Industry, Managing Service Quality, 2005, Vol. 15, No. 1, pp. 41-56.   DOI
11 Arora, H. and Arora, P., Service Quality Dimensions : an Empirical Investigation of Commercial Banks in India using SERVQUAL, International Journal of Services and Operations Management, 2015, Vol. 21, No. 1, pp. 50-72.   DOI
12 Backhaus, K., Broker, O., Brune, P., Reiche, F., and Wilken, R., Measuring service productivity with Data Envelopment Analysis(DEA), European Association for Research on Services Conference(http://www.reser.net/materiali/priloge/slo/backhaus_et_al.pdf), Hamburg, 2011.
13 Baumann, C., Burton, S., Elliott, G., and Kehr, H., Prediction of attitude and behavioral intentions in retail banking, International Journal of Bank Marketing, 2007, Vol. 25, No. 2, pp. 102-116.   DOI
14 Buell, R.W., Campbell, D., and Frei, F.X., How do Customers Respond to Increased Service Quality Competition?, Manufacturing & Service Operations Management, 2016, Vol. 18, No. 4, pp. 585-607.   DOI
15 Cheng, G., Zervopoulos, P., and Qian, Z., A Variant of Radial Measure Capable of Dealing with Negative inputs and Outputs in Data Envelopment Analysis, European Journal of Operations Research, 2013, Vol. 225, No. 1, pp. 100-105.   DOI
16 DiStefano, C., Zhu, M., and Mindrila, D., Understanding and Using Factor Scores : Considerations for the Applied Researcher, Practical Assessment, Research & Evaluation, 2009, Vol. 14, No. 20, pp. 1-20.
17 Chowdhary, N. and Prakash, M., Prioritizing Service Quality Dimensions, Managing Service Quality : An International Journal, 2007, Vol. 17, No. 5, pp. 493-509.   DOI
18 Coelli, T.J., Rao, D.S.P., O'Donnell, C.J., and Battese, G.E., Introduction to Efficiency and Productivity Analysis, Springer, 2005.
19 Cooper, W.W., Seiford, L.M., and Tone, K., Data Envelopment Analysis : A Comprehensive Text with Models, Applications, References, and DEA-Solver Software, 2007, New York, Springer.
20 Emrouznejad, A. and De Witte, K., COOPER-framework : A Unified Process for Non-Parametric Projects, European Journal of Operations Research, 2010, Vol. 207, No. 3, pp. 1573-1586.   DOI
21 Fethi, M.D. and Pasiouras, F., Assessing bank efficiency and performance with operational research and artificial intelligence techniques : A survey, European Journal of Operations Research, 2010, Vol. 204, No. 2, pp. 189-198.   DOI
22 Gibson, C.B. and Birkinshaw J., The Antecedents, Consequences, and Meditating Role of Organizational Ambidexterity, Academy of Management Journal, 2004, Vol. 47, No. 2, pp. 209-226.   DOI
23 Karatepe, O.M., Yavas, U., and Babakus, E., Measuring Service Quality of Banks : Scale Development and Validation, Journal of Retailing and Consumer Services, 2005, Vol. 12, No. 5, pp. 373-383.   DOI
24 Kim, J.W., Yoo, H.J., and Song, G.S., A Study on the Measurement of Service Efficiency using DEA-Focused on the SQI of Five Domestic Banks in Korea, The Korean Society for Quality Management, 2009, Vol. 37, No. 1, pp. 80-90.
25 Ladhari, R., Ladhari, I., and Morales, M., Bank Service Quality : Comparing Canadian and Tunisian Customer Perceptions, International Journal of Bank Marketing, 2011, Vol. 29, No. 3, pp. 224-246.   DOI
26 Kim, K., Clustering of Decision Making Units using DEA, Journal of Society of Korea Industrial and Systems Engineering, 2014, Vol. 37, No. 4, pp. 239-244.   DOI
27 Kumar, M., Fong, T.K., and Manshor, A., Determining the Relative Importance of Critical factors in Delivering the Service Quality of Bank : An Application of Dominance analysis in SERVQUAL Model, Managing Service Quality, 2009, Vol. 19, No. 2, pp, 211-228.   DOI
28 Kumar, M., Kee, F.T., and Charle, V., Comparative Evaluation of Critical Factors in Delivering Service Quality of Banks, International Journal of Quality & Reliability Management, 2010, Vol. 27, No. 3, pp. 351-377.   DOI
29 Lubatkin, M.H., Simsek Z., Ling, Y., and Veiga, J.F., Ambidexterity and Performance in Small-to Medium Sized Firms : The Pivotal Role of Top Management Team Behavioral Integration, Journal of Management, 2006, Vol. 32, No. 5, pp. 646-672.   DOI
30 Matin, R.K., Amin, G.A., and Emrouznejad, A., A Modified Semi-Oriented Radial Measure for Target Setting with Negative Data, Measurement, 2014, Vol. 54, pp. 152-158.   DOI
31 Matsunaga, M., How to Factor-Analyze Your Data Right : Do's, Don'ts, and How-To's, International Journal of Psychological Research, 2010, Vol. 3, No. 1, pp. 97-110.   DOI
32 Nam, S., Service Quality in Retail Banking, The Journal of American Academy of Business, 2008, Vol. 13, No. 2, pp. 223-230.
33 Ojasalo, K., Conceptualizing Productivity in Services, Swedish School of Economics and Business Administration, 1999, Helsinki.