Monday, July 27, 2020

Le Grand (2018) on Government Paternalism

Julian Le Grand, “Future Imperfect: Behavioral Economics and Government Paternalism.” Review of Behavioral Economics 5: 281–290, 2018.

• Nudges and even stronger government interventions are often justified on the grounds of allowing long-run, more considered or "truer" individual preferences to assert themselves. But there are problems with identifying and privileging any one set of preferences. This article offers two justifications for paternalistic interventions that do not rely on identifying true or long-run preferences. 

• The defense of paternalism offered here applies (as is usually the case in economics) to means-related paternalism, not ends-related. People's goals are taken as given (and, implicitly, rational); can policies be designed to empower people to better achieve those goals?

  What if the government sees people engaging in an activity like smoking that the government believes will have future costs for smokers that with a high probability will more than compensate (in terms of the smokers' own values) for the increased value they enjoy from smoking now? 

• The government might reasonably want to dissuade such smoking, but why would smokers make such a mistake? Maybe they lack information, so there is much to be said for ensuring that accurate information is readily available – but this is not the same as justifying a smoking tax or ban. Maybe smokers use a different discount rate than does the government in comparing current with future costs and benefits – again, this difference should not license coercive interventions by the government.

• But maybe (drawing upon Le Grand's 2015 book with Bill New) the problem is that smokers suffer from one or more "reasoning failures": "limited technical ability, limited experience or imagination, limited willpower and limited objectivity [p. 286]." In particular, can a young smoker imagine a realistic portrayal of herself as a 65-year old? The failure of imagination is not a problem of too little information about the health risks of smoking; rather, it is a lack of knowledge of how the well-being of future selves will be affected by current smoking. A paternalistic policy can be justified not only on the basis of better knowledge of true or more-considered preferences, but on a better understanding of health effects on well-being. 

• A second defense of paternalistic interventions might be to consider how a person's future selves might contract with current selves to influence current decision making. Government could serve as a stand-in for those underrepresented future selves. Now the justification for a paternalistic intervention is market failure, in that future selves generally are unable to participate in market transactions that nevertheless implicate their interests.

• Le Grand adapts an example from a 2018 book by Robert Sugden. A young person inherits from an uncle a wine collection, though she has little interest in wine, and does not place much value on her inheritance. But her father suspects that in a few years the young person will feel differently. So he could offer her a low price for the wine today (which she will accept), and after a few years, offer to sell it back to her at a higher price. If the father was right, she will agree to both transactions, and everyone is happy. 

• For goods which, unlike wine, cannot be transferred, the government could arrange a similar (though not voluntary?) deal, by subsidizing smoking avoidance today, with the subsidy repaid by taxes in the future on the now older non-smokers. But does this "contractarian approach" avoid the identification of a true or long-term preference? Le Grand thinks that it does not, as the (imposed) subsidy is designed to override the young person's current preferences.

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