So‐called nudge policies utilize insights from behavioral science to achieve policy outcomes. Nudge policies try to improve people's decisions by changing the ways options are presented to them, rather than changing the options themselves or incentivizing or coercing people. Nudging has been met with great enthusiasm but also fierce criticism. This paper provides an overview of the debate on the ethics of nudging to date. After outlining arguments in favor of nudging, we first discuss different objections that all revolve around (...) the worry that nudging vitiates personal autonomy. We split up this worry into different dimensions of autonomy, such as freedom of choice, volitional autonomy, rational agency, and freedom as nondomination. We next discuss worries that nudging is manipulative, violates human dignity, and prevents more important structural reform. Throughout, we will present responses that proponents of nudging can muster. On the whole, we conclude that the objections fail to establish that the nudge program as a whole should be rejected. At the same time, they give us important guidance when moving towards an ethical assessment of nudges on a case‐by‐case basis. Towards the end, we provide some possible ways forward in debates around the ethics of nudging. (shrink)

A key challenge in experimental social science research is the incentivisation of subjects such that they take the tasks presented to them seriously and answer honestly. If subject responses can be evaluated against an objective baseline, a standard way of incentivising participants is by rewarding them monetarily as a function of their performance. However, the subject area of experimental philosophy is such that this mode of incentivisation is not applicable as participant responses cannot easily be scored along a true-false spectrum (...) by the experimenters. We claim that experimental philosophers’ neglect of and claims of unimportance about incentivisation mechanisms in their surveys and experiments has plausibly led to poorer data quality and worse conclusions drawn overall, potentially threatening the research programme of experimental philosophy in the long run. As a solution to this, we propose the adoption of the Bayesian Truth Serum, an incentive-compatible mechanism used in economics and marketing, designed for eliciting honest responding in subjective data designs by rewarding participant answers that are surprisingly common. We argue that the Bayesian Truth Serum (i) adequately addresses the issue of incentive compatibility in subjective data research designs and (ii) that it should be applied to the vast majority of research in experimental philosophy. Further, we (iii) provide an empirical application of the method, demonstrating its qualified impact on the distribution of answers on a number of standard experimental philosophy items and outline guidance for researchers aiming to apply this mechanism in future research by specifying the additional costs and design steps involved. (shrink)

A key challenge in experimental social science research is the incentivisation of subjects such that they take the tasks presented to them seriously and answer honestly. If subject responses can be evaluated against an objective baseline, a standard way of incentivising participants is by rewarding them monetarily as a function of their performance. However, the subject area of experimental philosophy is such that this mode of incentivisation is not applicable as participant responses cannot easily be scored along a true-false spectrum (...) by the experimenters. We claim that experimental philosophers’ neglect of and claims of unimportance about incentivisation mechanisms in their surveys and experiments has plausibly led to poorer data quality and worse conclusions drawn overall, potentially threatening the research programme of experimental philosophy in the long run. As a solution to this, we propose the adoption of the Bayesian Truth Serum, an incentive-compatible mechanism used in economics and marketing, designed for eliciting honest responding in subjective data designs by rewarding participant answers that are surprisingly common. We argue that the Bayesian Truth Serum (i) adequately addresses the issue of incentive compatibility in subjective data research designs and (ii) that it should be applied to the vast majority of research in experimental philosophy. Further, we (iii) provide an empirical application of the method, demonstrating its qualified impact on the distribution of answers on a number of standard experimental philosophy items and outline guidance for researchers aiming to apply this mechanism in future research by specifying the additional costs and design steps involved. (shrink)

Nudge is a popular public policy tool that harnesses well-known biases in human judgement to subtly guide people’s decisions, often to improve their choices or to achieve some socially desirable outcome. Thanks to recent developments in artificial intelligence (AI) methods new possibilities emerge of how and when our decisions can be nudged. On the one hand, algorithmically personalized nudges have the potential to vastly improve human daily lives. On the other hand, blindly outsourcing the development and implementation of nudges to (...) “black box” AI systems means that the ultimate reasons for why such nudges work, that is, the underlying human cognitive processes that they harness, will often be unknown. In this paper, we unpack this concern by considering a series of examples and case studies that demonstrate how AI systems can learn to harness biases in human judgment to reach a specified goal. Drawing on an analogy in a philosophical debate concerning the methodology of economics, we call for the need of an interdisciplinary oversight of AI systems that are tasked and deployed to nudge human behaviours. (shrink)

Libertarian paternalism is a weak form of paternalism that recommends nudges rather than bans, restrictions, or other strong interventions. Nudges influence people’s choice by modifying contextual factors (the “choice architecture”). This paper explores the possibility of an epistemic analogue of libertarian paternalism. What I call “epistemic libertarian paternalism” is a weak form of epistemic paternalism that recommends “epistemic nudges” rather than stronger paternalistic interventions. Epistemic nudges influence people’s beliefs and judgments by modifying contextual factors (the “epistemic choice architecture”). The main (...) aim of this paper is to defend epistemic libertarian paternalism from the “irrationality problem”, which I take to be the most urgent problem for epistemic libertarian paternalism; given how epistemic nudges work (i.e. they typically co-opt psychological biases), nudged beliefs are irrational. In response to the irrationality problem, I admit that nudged beliefs are often (not always, though) irrational, but insist that there are conditions in which epistemic nudging can be justifiable nonetheless. I will propose two conditions that are jointly sufficient for justifiable epistemic nudging: “Veridicality Condition” (which says that nudged beliefs are more likely to be true than non-nudged beliefs) and “Not-More-Irrationality Condition” (which says that nudged beliefs are not more likely to be irrational than non-nudged beliefs). (shrink)

The Cognitive Reflection Test is a widely used measure of the degree to which individuals override an intuitive response and engage in reflection. For both theoretical and practical reasons, it is widely taken to assess an important component of rational thought. In this paper, I will argue that while doing well on the CRT requires valuable cognitive capacities and dispositions, doing badly does not always indicate a lack of such capacities and dispositions. The CRT, I argue, offers respondents implicit (but (...) misleading) testimony: some of those who do badly do so due to a stronger disposition to defer to testimony. Since deference is not irrational, those who do badly need not be irrational, not even in part. (shrink)

Large-scale social media services have been challenged due to their lack of ethical principles, which has resulted in allegations of user manipulation such as propagation of fake news related to COVID-19 vaccination and biased algorithmic curations that lead to social polarization. We studied current social media community guidelines and conducted a systematic literature review to identify the core values needed for the establishment of guidelines for responsible social media services. Through expert interviews, a framework and guidelines are proposed for each (...) of three areas: protecting privacy, raising awareness, and controlling abuse. We present each set of guidelines with executable principles and relevant design interventions that practitioners can use to offer responsible social media services. Our expert interviews surfaced tensions between the three areas that need to be addressed in developing responsible social media, such as privacy vs. sharing information, pseudonymity vs. safety, and spreading information vs. safety. (shrink)

As behavioural economics reveals, human decision-making deviates from neoclassical assumptions about human behaviour and people (often) fail to make the ‘right’ welfare-enhancing choice. The purpose of Sunstein and Thaler’s concept of ‘nudge’ is to improve individual welfare. To provide normative justification, they argue that the only relevant normative criterion is whether the individual is ‘better off as judged by themselves’, so that the direction in which people are to be nudged is defined by their own preferences. In light of behavioural (...) findings, however, people’s choices do not provide a sound basis for eliciting preferences and thus for assessing welfare. In this paper, I aim to challenge Sunstein and Thaler’s normative view, arguing that it is unreasonable to rely on conventional welfare economics, particularly considering the given context. Sunstein and Thaler depend on an approach of ‘preference purification’ which assumes informed, latent, and true preferences: As a result they face crucial methodological, epistemological, and practical objections, and cannot show how their approach enhances individual welfare. By building on the concepts of R. Sugden and C. Schubert, I develop an alternative normative framework for behavioural public policy, based on a contractualist perspective in which people may consent to collective choice rules in order to align future behaviour with values, to achieve particular goals or to preserve personal integrity. Individual consent and citizens’ participation and deliberation are crucial to this approach. This contractualist approach may provide a normative justification for behavioural public policy, and help to reconcile behavioural and normative economics. (shrink)

Health-promoting nudges have been put into practice by different agents, in different contexts and with different aims. This article formulates a set of criteria that enables a thorough ethical evaluation of such nudges. As such, it bridges the gap between the abstract, theoretical debates among academics and the actual behavioral interventions being implemented in practice. The criteria are derived from arguments against nudges, which allegedly disrespect nudgees, as these would impose values on nudgees and/or violate their rationality and autonomy. Instead (...) of interpreting these objections as knock-down arguments, I take them as expressing legitimate worries that can often be addressed. I analyze six prototypical nudge cases, such as Google’s rearrangement of fridges and the use of defaults in organ donation registration. I show how the ethical criteria listed are satisfied by most—but not all—nudges in most—but not all—circumstances. (shrink)

There is an extensive ethical debate regarding the justifiability of doctors nudging towards healthy behaviour and better health-related choices. One line of argument in favour of nudging is based on empirical findings, according to which a healthy majority among the public support nudges. In this paper, we show, based on an experiment we conducted, that, in health-related choices, people’s ethical attitudes to nudging are strongly affected by the point of view from which the nudge is considered. Significant differences have been (...) found between doctors’ ethical attitude to clinical nudging and that of patients. We show how these differences weaken the argument for nudging from public support. Moreover, our findings raise concerns regarding doctors’ ability to nudge ethically according to their own standards, as they may underestimate the degree of harm medical nudges can cause to informed consent, doctor–patient trust and other important ethically relevant features of health-related choices. (shrink)

Nudging is the idea that people’s decisions should be influenced in predictable, non-coercive ways by making changes to the way that options are presented to them. Central to the debate about nudging is the question of whether it is morally permissible to intentionally nudge others. Libertarian paternalists maintain that this can be the case. In this paper, I present the libertarian paternalistic criteria for the moral permissibility of intentional nudges. Having done this, I motivate two objections. The first one targets (...) the moral permissibility of nudging in general. The second one targets the moral permissibility of only a subset of nudges. After evaluating both of these objections, I conclude that although they are unsuccessful, the evaluation of The Manipulation Objection shows that the libertarian paternalistic criteria for the moral permissibility of intentional nudges fails. I end by suggesting a possible revision to the criteria that avoids the problem, considering its limitations, and providing examples of its applications. (shrink)