Dimitris Giraleas

Dr Dimitris Giraleas


Senior Lecturer In Business Analytics
BSc, MSc, PhD
+44 (0)1483 686380
47 MS 02

Academic and research departments

Business Analytics and Operations.

About

Areas of specialism

Efficiency and Productivity analysis (multi-dimensional performance assessments); Business analytics and Applied statistics/econometrics ; Regulatory Economics; Soft Systems Methodology (Soft OR and Consulting)

University roles and responsibilities

  • Programme director of Business Management with Business Analytics BSc

    Previous roles

    2002 - 2013
    Economics Analyst/Consultant/Senior Consultant
    Oxera Consulting and Freelance
    2013 - 2022
    Lecturer in Business Statistics and Programme Director of the BSc in Business Analytics
    Aston Business School

    Business, industry and community links

    Academic Associate for Oxera Consulting
    Recent projects:

    - Yorkshire Water for a Competition and Markets Authority case (2021) – England and Wales Water and Sewerage Service Economic Regulation, topics: Frontier shift/Productivity indices
    - Scottish Southern Energy (2020, Transmission) – Energy transmission regulation, topics: Frontier shift/Productivity indices
    - Vlaamse Regulator van de Elektriciteits- en Gasmarkt, VREG (2019) – Flemish gas and electricity distribution Regulation, topics: Frontier shift/Productivity indices
    - South East Water (2018)– England and Wales Water and Sewerage Service Economic Regulation, topics: Frontier shift/Productivity indices/Efficiency assessment
    - German Association of Energy and Water Industries (2016 - 2018) - German Energy Transmission Regulation, topics: Frontier shift/Productivity indices
    - The Netherlands Authority for Consumers and Markets. (2015 - 2017) - Dutch Energy Transmission Regulation, topics: Frontier shift/Productivity indices, Price forecasting
    - Netze BW GmbH (2016) - German Energy Distribution Regulation, topics: Frontier shift/Productivity indices, Regulatory theory and practice
    - Dwr Cymru/Welsh Water. (2014 - 2015) – England and Wales Water and Sewerage Service Economic Regulation, topics: Econometric estimation
    - Electricity North West. (2014) - England and Wales Electricity Distribution Economic Regulation, topics: Frontier shift/Productivity indices
    Previous Consultancy experience
    Some examples:

    - demand and revenue forecasting for rail franchises,
    - evidence on the impacts of mergers in the competition of the market for energy and water services in the UK,
    - supply and demand forecasting for landfill services in the UK,
    - estimating the value of time of train crowding with respect to business commuters in the UK (for High-speed rail)
    - make-or-buy analysis for transport services for a waste management company in Belgium
    - the effects of an ageing population on the States of Jersey’s fiscal policies
    - valuation and costing of water for agricultural/irrigation purposes in the river basin of Strymonas, Greece

    Teaching

    Publications

    Dimitris Giraleas (2021)Can we assess teaching quality on the basis of student outcomes? A stochastic frontier application, In: Studies in higher education (Dorchester-on-Thames)46(7)pp. 1325-1339 Routledge

    This paper proposes a new application of Stochastic Frontier Analysis (SFA) for estimating the student performance gap and how this can be used to assess changes of teaching quality at the individual unit-of-study level (module-level). Although there have been other examples in the literature that assess 'efficiency' in student outcomes, this is the first study that proposes the use of SFA specifically at the module level and with the goal of creating an aggregate measure of 'quality', thus avoiding the known issue of the statistical inconsistency of unit-specific SFA estimates. A case study is presented on how the approach can be applied in practice, with discussion on potential implementation issues. This paper is targeted to academics and policy makers that are interested in the quantitative assessment of student outcomes and specifically to those who want to assess how changes in module structure and/or delivery have affected said student outcomes.