BSc & MSc (Seoul Natl), MBA (ISG), PGDip & MSc Econ (LSE), PhD Econ (Warwick)
Job Title: Lecturer in Business Economics
Research Cluster: Business, Regulation & Society
Affiliated Research Centre: Centre for Research in Advertising and Consumption (CRiAC), ESRC Centre for Competition Policy
Subject Group: Business Economics and Strategy
Key Research Interests: Banking & Finance, Competition & Regulation, Consumer Policy, Law & Economics

My main research interest lies in the interaction between the financial sector and the real sector (non-financial corporate), especially when there are changes in the competition environment due to the regulatory regime shift or changes in technology in the respective sectors. Insofar, four main areas of investigation have been developed: the first application of these issues mainly focuses on market structure and competition of the banking sector looking at the effects of regulation, new technology, and industrial policy; the second aspect of the research theme looks at the consumer policy and protection issues, trying to identify the ways to empower consumers. The current investigation under this theme explores consumer search and switching behaviour in relationship markets; thirdly my research interest relates to regulation of financial intermediaries aiming to answer whether more and/or better information provision improves consumer welfare and if so, how much and what kind of information is enough and by whom to be provided as new directions of information provision in the financial markets; finally, a more recent research interest includes law and economics associated with the competition policy and regulation.

Book Chapters
Chang, Y. T., & Stirton, L. J. 2007. Administrative law and the social science from a British perspective: Policy-oriented apporaches as an illustrative case study. In M. Ruffert (Ed.), The transformation of administrative law as a transnational methodological project: 145-168. Munich, Germany: Sellier European Law Publishers.
Chang, Y. T. 2006. Time value of internet banking adoption and customer trust. In M. Constantino & C. A. Brebbia (Eds.), Computational finance and its applications II. WIT Transactions on Modelling and Simulation, vol. 43: 33-42. Southampton: WIT Press.

Working Papers and Recent Publications

Collective relationship banking and private information monitoring in Korea, Economics of Transition, Vol.15, Issue 3, pp.483-504, 2007
Administrative law and the social sciences from a British perspective: Policy-oriented approaches as an illustrative case study, in Matthias Ruffert (ed.), The Transformation of Administrative Law in Europe, Munich, Sellier European Law Publishers, pp.145-168, 2007
Time Value of internet banking adoption and customer trust, in Constantino and Brebbia (ed.), Computational Finance and its Applications II, WIT Press; Section 1, pp.33-42, 2006
Dynamics of internet banking adoption, 2005
East Asian banking restructuring and regulation, 2005
Role of NPLs in banking structure and competition, 2005
Consumer search with information advantage, 2006
Rethinking institutional endowment in Jamaica: misguided theory, prophecy of doom or explanation for regulatory change?, 2007 (with Martin Lodge and Lindsay Stirton)

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