... Auditing and Law, Norwegian Schoolof Economics and Business Administration (NHH), Helleveien 30, 5045 Bergen,Norway and Department of Finance and Management Science, Norwegian School of Economics and ... Helleveien 30, 5045 Bergen, Norwaye-mail: trond.doskeland@nhh.noE. Bjørndal et al. (eds.), Energy, Natural Resources and Environmental Economics, Energy Systems, DOI 10.1007/978-3-642-12067-11,c ... Department of Industrial Economics and Risk Management,University of Stavanger, 4036 Stavanger, Norway and Department of Finance and Management Science, Norwegian School of Economics and Business Administration...