He held academic positions in Brunel University, Loughbourgh University, University of Sheffield, Open University and the London School of Economics. He is a Senior Fellow in the Rimini Center of Economics Analysis. He is the coeditor of the Review of Economics Analysis and serves at the editorial boards of Journal of Economics and Finance, Economics and Business Letters, International Review of Financial Studies, African Review Economics and Finance. He has published more than 50 articles in refereed journals.