Cass R. Sunstein

Bio: Cass R. Sunstein is an academic researcher from Harvard University. The author has contributed to research in topics: Supreme court & Constitution. The author has an hindex of 117, co-authored 787 publications receiving 57639 citations. Previous affiliations of Cass R. Sunstein include Brigham Young University & Indiana University.

“Better off, as judged by themselves”: a comment on evaluating nudges

Abstract: Many nudges are designed to make people better off, as judged by themselves. This criterion, meant to ensure that nudges will increase people’s welfare, contains some ambiguity. It is useful to distinguish among three categories of cases: (1) those in which choosers have clear antecedent preferences, and nudges help them to satisfy those preferences (often by increasing “navigability”); (2) those in which choosers face a self-control problem, and nudges help them to overcome that problem; and (3) those in which choosers would be content with the outcomes produced by two or more nudges, or in which ex post preferences are endogenous to nudges, so that without additional clarification or work, the “as judged by themselves” criterion does not identify a unique solution for choice architects. Category (1) is self-evidently large. Because many people agree that they suffer self-control problems, category (2) is large as well. Cases that fall in category (3) create special challenges, which may lead us to make direct inquiries into welfare or to explore what informed, active choosers typically select.

Better than a Whip?: European Attitudes Toward Health Nudges

Abstract: We examine whether the populations of six European nations support the use of “health nudges” – strategies that preserve free choice but steer individuals in healthier directions. To assess approval rates for health nudges across, within, and in certain parts of these populations, we analyze the results of six nationally representative online surveys administered in Denmark, France, Germany, Hungary, Italy, and the UK. We find majority support for health nudges across the board but with lower approval rates in Hungary and Denmark. Our findings reveal national differences and identify conditions under which consumers tend to approve of nudging healthy behavior. They therefore provide policymakers with practical guidance on which health nudges are likely to receive high levels of public support in the nation states studied.

Behavioral Economics, Public Policy, and Paternalism

Abstract: Many economists are libertarians and consider the term “paternalistic” to be derogatory. Most would think that the phrase libertarian paternalism is an oxymoron. The modest goal of this essay is to encourage economists to rethink their views on paternalism. We believe that the anti-paternalistic fervor expressed by many economists is based on a combination of a false assumption and at least two misconceptions. The false assumption is that people always (usually?) make choices that are in their best interest. This claim is either tautological, and therefore uninteresting, or testable. We claim that it is testable and false—indeed, obviously false. The first misconception is that there are viable alternatives to paternalism. In many situations, some organization or agent must make a choice that will affect the choices of some other people. The point applies to both private and public actors. Consider the problem facing the director of a company cafeteria who discovers that the order in which food is arranged influences the choices people make. To simplify, consider three alternative strategies: (1) she could make choices that she thinks would make the customers best off; (2) she could make choices at random; or (3) she could maliciously choose those items that she thinks would make the customers as obese as possible. Option 1 appears to be paternalistic, which it is, but would anyone advocate options 2 or 3? The second misconception is that paternalism always involves coercion. As the cafeteria example illustrates, the choice of which order to present food items does not coerce anyone to do anything, yet one might prefer some orders to others on paternalistic grounds. Would many object to putting the fruit before the desserts at an elementary school cafeteria if the outcome were to increase the consumption ratio of apples to Twinkies? Is this question fundamentally different if the customers are adults? If no coercion is involved, we think that some types of paternalism should be acceptable to even the most ardent libertarian. We call such actions libertarian paternalism. In our understanding, a policy counts as “paternalistic” if it is selected with the goal of influencing the choices of affected parties in a way that will make those parties better off. We intend “better off” to be measured as objectively as possible, and we clearly do not always equate revealed preference with welfare. That is, we emphasize the possibility that in some cases individuals make inferior choices, choices that they would change if they had complete information, unlimited cognitive abilities, and no lack of willpower. Once it is understood that some organizational decisions are inevitable, that a form of paternalism cannot be avoided, and that the alternatives to paternalism (such as choosing options to make people sick, obese, or generally worse off) are unattractive, we can abandon the less interesting question of whether to be paternalistic or not and turn to the more constructive question of how to choose among paternalistic options. 1 † Discussants: Robert E. Hall, Stanford University; Gary Becker, University of Chicago; Robert Barro, Harvard University.

Valuing life: a plea for disaggregation.

Abstract: Each government agency uses a uniform figure to measure the value of a statistical life (VSL). This is a serious mistake. The very theory that underlies current practice calls for far more individuation of the relevant values. According to that theory, VSL should vary across risks. More controversially, VSL should vary across individuals -- even or especially if the result would be to produce a lower number for some people than for others. One practical implication is that a higher value should be given to programs that reduce cancer risks. Another is that government should use a higher VSL for programs that disproportionately benefit the wealthy -- and a lower VSL for programs that disproportionately benefit the poor. But there are two serious complications here. First, bounded rationality raises problems for the use of private willingness to pay, which underlies current calculations of VSL. Second, the beneficiaries of regulation sometimes pay only a fraction or even none of its cost; when this is so, the appropriate VSL for poor people might be higher, on distributional grounds, than market evidence suggests. An understanding of this point has implications for foundational issues about government regulation, including valuation of persons in poor and wealthy nations.

Pattern Recognition and Machine Learning

Abstract: Probability Distributions.- Linear Models for Regression.- Linear Models for Classification.- Neural Networks.- Kernel Methods.- Sparse Kernel Machines.- Graphical Models.- Mixture Models and EM.- Approximate Inference.- Sampling Methods.- Continuous Latent Variables.- Sequential Data.- Combining Models.

The behaviour change wheel: a new method for characterising and designing behaviour change interventions.

Abstract: Improving the design and implementation of evidence-based practice depends on successful behaviour change interventions. This requires an appropriate method for characterising interventions and linking them to an analysis of the targeted behaviour. There exists a plethora of frameworks of behaviour change interventions, but it is not clear how well they serve this purpose. This paper evaluates these frameworks, and develops and evaluates a new framework aimed at overcoming their limitations. A systematic search of electronic databases and consultation with behaviour change experts were used to identify frameworks of behaviour change interventions. These were evaluated according to three criteria: comprehensiveness, coherence, and a clear link to an overarching model of behaviour. A new framework was developed to meet these criteria. The reliability with which it could be applied was examined in two domains of behaviour change: tobacco control and obesity. Nineteen frameworks were identified covering nine intervention functions and seven policy categories that could enable those interventions. None of the frameworks reviewed covered the full range of intervention functions or policies, and only a minority met the criteria of coherence or linkage to a model of behaviour. At the centre of a proposed new framework is a 'behaviour system' involving three essential conditions: capability, opportunity, and motivation (what we term the 'COM-B system'). This forms the hub of a 'behaviour change wheel' (BCW) around which are positioned the nine intervention functions aimed at addressing deficits in one or more of these conditions; around this are placed seven categories of policy that could enable those interventions to occur. The BCW was used reliably to characterise interventions within the English Department of Health's 2010 tobacco control strategy and the National Institute of Health and Clinical Excellence's guidance on reducing obesity. Interventions and policies to change behaviour can be usefully characterised by means of a BCW comprising: a 'behaviour system' at the hub, encircled by intervention functions and then by policy categories. Research is needed to establish how far the BCW can lead to more efficient design of effective interventions.

International Norm Dynamics and Political Change

Abstract: Norms have never been absent from the study of international politics, but the sweeping “ideational turn” in the 1980s and 1990s brought them back as a central theoretical concern in the field. Much theorizing about norms has focused on how they create social structure, standards of appropriateness, and stability in international politics. Recent empirical research on norms, in contrast, has examined their role in creating political change, but change processes have been less well-theorized. We induce from this research a variety of theoretical arguments and testable hypotheses about the role of norms in political change. We argue that norms evolve in a three-stage “life cycle” of emergence, “norm cascades,” and internalization, and that each stage is governed by different motives, mechanisms, and behavioral logics. We also highlight the rational and strategic nature of many social construction processes and argue that theoretical progress will only be made by placing attention on the connections between norms and rationality rather than by opposing the two.

Risk as Feelings

Abstract: Virtually all current theories of choice under risk or uncertainty are cognitive and consequentialist. They assume that people assess the desirability and likelihood of possible outcomes of choice alternatives and integrate this information through some type of expectation-based calculus to arrive at decision. The authors propose an alternative theoretical perspective, the risk-as-feelings hypothesis, that highlights the role of affect experienced at the moment of decision making. Drawing on research from clinical, physiological, and other subfield of psychology, they show that emotional reactions to risky situations often drive behavior. The risk-as-feelings hypothesis is shown to explain a wide range of phenomena that have resisted interpretation in cognitive-consequentialist terms.

A perspective on judgment and choice: Mapping bounded rationality.

Abstract: Early studies of intuitive judgment and decision making conducted with the late Amos Tversky are reviewed in the context of two related concepts: an analysis of accessibility, the ease with which thoughts come to mind; a distinction between effortless intuition and deliberate reasoning. Intuitive thoughts, like percepts, are highly accessible. Determinants and consequences of accessibility help explain the central results of prospect theory, framing effects, the heuristic process of attribute substitution, and the characteristic biases that result from the substitution of nonextensional for extensional attributes. Variations in the accessibility of rules explain the occasional corrections of intuitive judgments. The study of biases is compatible with a view of intuitive thinking and decision making as generally skilled and successful.