Thinking Man’s Sentences

Tim Hartford, writing about [FT, gated] the importance of designing randomized experiments to guide political policy.

What is missing is the political demand for tests of what really works. Too many policies on education, welfare and criminal justice are just so much homeopathy: cute-sounding stories about what works leaning more on faith than on evidence. Politicians and civil servants, faced with some fancy new idea, should get into the habit of asking for a proper randomised trial. And we, as citizens, should be equally demanding.

It’s no coincidence that one of the few fields of social policy to feature more than 100 robust trials is the study of how to get voters to turn out in elections. Politicians seem perfectly happy to turn to scientific method if it will get them elected. They are less interested in using it for the good of the people they govern.


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