Refereeing and Visiting:
I have refereed articles for the Journal of Econometrics, Econometrica, IER, Mathematical Social Sciences, Journal of Public Economics, Review of Economic Studies, Econometric Theory, and Journal of Applied Econometrics plus many other journals.  I have given seminars at many British and Australian Universities and have been a visitor at Monash University (1985), (1987) and the University of New South Wales (1986) and Australian National University (1986), (1987).  I have visited the University at Western Ontario (1988) and been a Visiting Fellow to University College, London.  In 1989, I visited Complutense, Madrid.  I am currently a Visiting Fellow at Birkbeck College, London (1994 -), I recently visited University of Technology, Sydney (1998). I have been appointed Visiting Professor at CUBS (2000) and Visiting Professor at Birkbeck College (2000) and Visiting Lecturer in Applied Mathematics at Oxford University.

Supervision and Examination:
I have supervised numerous post-graduate students and have successfully supervised the Ph.D.'s of A. Nasim at Essex and of M. Ncube and Y. Yoon, B. Eftekhari and S Hwang, G. Kuo, C. Pedersen, M. Sokalska, S. Bond, L. Middleton, M. Pitsillis, T. Darsinos and A. Sancetta at Cambridge, plus other Cambridge students on a joint supervision basis including A. Timmermann. Other successful students supervised at Birkbeck include Y. Hatgioniddes, R. Daccó, M. Karanassou and G. Christodoulakis. My current students consist of four Cambridge Ph.D. students in Economics and one in Management Studies and five Birkbeck students. I have been an Examiner every year that I have taught at University. I have been external examiner at Queen Mary College and London School of Economics (Econometrics), and at London School of Economics (Economics) Imperial College, and Essex University. I have also examined over twenty doctoral dissertations in Econometrics, Finance and Land Economy.