Do governments assume citizen rationality and self-control?

The latest Per Capita paper summarises the research on various cognitive biases (loss aversion, endowment effect, etc) and makes suggestions for policymakers about ‘choice architecture’ that helps people make better, less irrational, decisions. For example, default options of sensible choices where people have to opt out to avoid them preserves freedom to choose while encouraging decisions that will benefit most people.

It’s the kind of argument Cass Sunstein has been making for years, and on which he co-wrote with Richard Thaler a widely-cited 2008 book called Nudge: Improving Decisions About Health, Wealth and Happiness (which is strangely not cited in Jack Fuller’s Per Capita paper; if Sunstein did not coin ‘choice architecture’ he’s certainly its main populariser).

I don’t doubt that these cognitive biases exist, or that their negative effects can be reduced by ‘choice architecture’. But I do want to take issue with another example of the annoying rhetorical strategy of setting up straw man opponents:
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