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Sometimes it is ethical to lie to your study subjects

Jed Friedman's picture

A recent article in the New York Times describes a “stealth survey” to measure the difficulties in accessing timely health care. This U.S. government sponsored survey involves a team of “mystery shoppers” to pose as potential patients on the phone in order to measure the efforts required to schedule a doctor’s appointment as a new patient.

If you want her business to grow, don’t just give her cash

David McKenzie's picture

That’s one blunt message from my new working paper with Marcel Fafchamps, Simon Quinn and Chris Woodruff, which replicates in Ghana a study that Chris and I had previously done in Sri Lanka with Suresh de Mel. In the new experiment, we take almost 800 microenterprises in urban Ghana, and randomly divide them into treatment and control groups.

New funding opportunity for impact evaluations about savings

David McKenzie's picture

IPA's Microsavings and Payments Innovation Initiative (MPIII) has just launched a call for expressions of interest-

http://www.poverty-action.org/microsavings/opportunities/eoi2011

We know funding is often a major issue for people with good ideas looking to get started doing impact evaluations, so are happy to advertise new opportunities for funding as they become available - just let us know if you have money you want to give out!

What makes health workers get up in the morning? Paying-for-performance and worker motivation

Jed Friedman's picture

Economists have long noted that the price mechanism can be effective at modifying human behavior. Psychologists classify this aspect of behavior motivation as extrinsic motivation, meaning that the behavior is induced by external pressure. If I increase my hours worked due to an overtime premium then I can be said to exhibit extrinsic motivation - I am responding to the price schedule offered me. In contrast to extrinsic motivation, psychologists posit intrinsic motivation as arising from within the individual.

The impact of studying abroad - and of being made to return home again

David McKenzie's picture

Studying abroad is becoming increasingly common in many countries – with almost 3 million students educated each year at the tertiary level in a country other than their own. For developing countries in particular, studying abroad offers many of the promises and fears of brain drain (both of which I think are overblown).

Unpacking the Causal Chain of Financial Literacy

Bilal Zia's picture

This blog has now featured a healthy debate between researchers advocating randomized evaluations and those cautioning the overuse of such methods. One point that I believe both sides would agree on is that irrespective of which empirical methods we use, it is important to understand and analyze the causal chain of impact. Such analysis can greatly enhance the external validity of any evaluation.

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