The Contingency of Leadership-A Case Study of Municipal Trajectory Management

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A Comparison of Model-based and Design-based Impact Evaluations of Interventions in Developing Countries

We argue that non-experimental impact estimators will continue to be needed for evaluations of interventions in developing countries as social experiments, for various reasons, will never be the most preferred approach. In a survey of four studies that empirically compare the performance of experimental and non-experimental impact estimates using data from development interventions, we show that the preferred non-experimental estimators are unbiased. We try to explain the reasons why the non-experimental estimators perform better in the context of development interventions than American job-market interventions. We also use the survey as a source for suggestions for implementation and assessment of non-experimental impact evaluations. Our main suggestion is to be more careful and precise in the formulation of the statistical model for the assignment into the program and also to use the assignment information for model-based systematic sampling.Development, impact, non-experimental, social experiment, within-study

Some Thoughts on Development Evaluation Processes

A lively methodological debate together with organisational adjustments has dominated the international discussion on development evaluation in the last decade. Less discussed have been the evaluation processes, from procurement of consultants to the completion of evaluations, where many donors have used the same ‘system’ with only minor adjustments for many years. A key question is whether this ‘system’ is still ‘fit for purpose’ in view of the increasing complexity of many development interventions. This article presents three perspectives on development evaluation processes – the ‘independence perspective’, the ‘transaction cost perspective’ and the ‘political economy perspective’ – and argues that in particular the ‘political economy perspective’ constitutes a relevant perspective in analyses of evaluation processes. It is concluded that evaluation processes should be designed to reflect the specific characteristics of the individual evaluations, but also that more analysis and experimentation are required