With programme budgets being cut, new questions about evaluation are being asked. Is evaluation worth what it costs? This book tackles the problems involved in determining the cost-effectiveness of evaluation. In Part One, an economist, a philosopher, and a policy analyst provide the theoretical underpinnings for the discussion of determining the costs and the impact of evaluation. Part Two focuses on the practical procedures for estimating and measuring these costs and benefits. Part Three more specifically deals with the problems of weighing costs against benefits. Here the question becomes: what kind of benefits, to whom, are we trying to measure? And whose costs are we weighing them against? `...this book merits the att