This book is intended to help regulators learn about the tools needed to measure efficiency. It is based on lecture notes from courses the World Bank Institute offers in English, French and Spanish throughout the developing world and has benefited from feedback received during those courses. It...

Almost a decade after Argentina began privatizing its railways, resolution of the conflicts between regulators, users and operators continues to take longer, and to be more difficult than expected. This paper shows that many of these conflicts arose because there are no rule of interactions...