[1] Coventry Univ, Sch Business, Coventry CV1 5FB, W Midlands, England
[2] Univ W Scotland, Sch Business, Paisley PA1 2BE, Renfrew, Scotland
[3] Univ Oxford, Dept Continuing Educ, Oxford OX2 6PN, Oxon, England
[4] Univ Oxford, Kellogg Coll, Oxford OX2 6PN, Oxon, England
[5] Univ Cambridge, Dept Land Econ, Cambridge CB3 9EP, England