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Is the Impact Evaluation production function O-ring or a Knowledge Hierarchy?

David McKenzie's picture
The production process for many economics papers requires relatively few inputs: one or two researchers, their computers, a research assistant, and some data someone else has collected. Indeed Bob Hall notes that Robert Solow once remarked that the most powerful tool for research was one economics professor with one research assistant.

The Tyranny of Anecdotes: Bill Easterly’s new book

David McKenzie's picture
Bill Easterly’s new book “The Tyranny of Experts: Economists, Dictators, and the Forgotten Rights of the Poor” is a meandering mélange of anecdotes, parts of Why Nations Fail, and miscellaneous pages from human rights reports, sprinkled with history of economic thought, non sequiturs about one block in New York, finally mixed with some sharper critiques of Thomas Friedman and discussion of the difficulties of measuring the relationship between autocracy and growth.

The Impact of Vocational Training for the Unemployed in Turkey: an inside look at my latest paper

David McKenzie's picture
My latest working paper (joint with Sarojini Hirschleifer, Rita Almeida and Cristobal Ridao-Cano) presents results from an impact evaluation of a large-scale vocational training program for the unemployed in Turkey. I thought I’d briefly summarize the study, and then discuss a few aspects that may be of more general interest.

The study

Ethical Validity Response #2: Is random assignment really that unacceptable or uncommon?

David McKenzie's picture
In his post this week on ethical validity in research, Martin Ravallion writes:
 “Scaled-up programs almost never use randomized assignment so the RCT has a different assignment mechanism, and this may be contested ethically even when the full program is fine.”

Lotteries aren’t so exotic

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