The techniques and methods of project appraisal in developing countries have been considerably expanded and refined since they were first introduced in the late 1960s. This up-to-date and authoritative survey volume demonstrates the ways in which cost-benefit analysis has developed in response to changes in economic circumstances and conditions over the past three decades. An international group of academic and professional economists covers areas including problems in the practical application of cost-benefit techniques by international agencies, the treatment of income distribution, discounting, the effects method, the logical framework as a complement to project appraisal, aid tying, risk criteria in decision making, benefit valuation in the water sector, the appraisal of technical assistance projects, privatization in transition economies and shadow pricing in transition economies. Professor Kirkpatrick and Professor Weiss have prepared an insightful overview essay introducing the broad selection of work presented in this volume.