“Moral hazard” is a term familiar in economics and business ethics that illuminates why rational parties sometimes choose decisions with bad moral outcomes without necessarily intending to behave selfishly or immorally. The term is not generally used in medical ethics. Decision makers such as parents and physicians generally do not use the concept or the word in evaluating ethical dilemmas. They may not even be aware of the precise nature of the moral hazard problem they are experiencing, beyond a general (...) concern for the patient's seemingly excessive burden. This article brings the language and logic of moral hazard to pediatrics. The concept reminds us that decision makers in this context are often not the primary party affected by their decisions. It appraises the full scope of risk at issue when decision makers decide on behalf of others and leads us to separate, respect, and prioritize the interests of affected parties. (shrink)

Exploring the use of nudges and informed consent in medical ethics.

In the article “Informed Consent: What Must be Disclosed and What Must be Understood?” Joseph Millum and Danielle Bromwich argue that informed consent requires satisfaction of certain disclosure an...

In his article “Nudging and Informed Consent,” Shlomo Cohen (2013) argues, among other things, that 1) “to the extent that the nudge-influenced decision making is rational—in whatever sense,” there...

Richard Thaler and Cass Sunstein define a nudge as “any aspect of the choice architecture that alters people's behavior in a predictable way without forbidding any options or significantly changing their economic incentives.” Much has been written about the ethics of nudging competent adult patients. Less has been written about the ethics of nudging surrogates’ decision‐making and how the ethical considerations and arguments in that context might differ. Even less has been written about nudging surrogate decision‐making in the context of (...) pediatrics, despite fundamental differences that exist between the pediatric and adult contexts. Yet, as the field of behavioral economics matures and its insights become more established and well‐known, nudges will become more crafted, sophisticated, intentional, and targeted. Thus, the time is now for reflection and ethical analysis regarding the appropriateness of nudges in pediatrics. We argue that there is an even stronger ethical justification for nudging in parental decision‐making than with competent adult patients deciding for themselves. We give three main reasons in support of this: (1) child patients do not have autonomy that can be violated (a concern with some nudges), and nudging need not violate parental decision‐making authority; (2) nudging can help fulfill pediatric clinicians’ obligations to ensure parental decisions are in the child's interests, particularly in contexts where there is high certainty that a recommended intervention is low risk and of high benefit; and (3) nudging can relieve parents’ decisional burden regarding what is best for their child, particularly with decisions that have implications for public health. (shrink)

An effective method to increase the number of potential cadaveric organ donors is to make people donors by default with the option to opt out. This non-coercive public policy tool to influence people’s choices is often justified on the basis of the as-judged-by-themselves principle: people are nudged into choosing what they themselves truly want. We review three often hypothesized reasons for why defaults work and argue that the as-judged-by-themselves principle may hold only in two of these cases. We specify further (...) conditions for when the principle can hold in these cases and show that whether those conditions are met is often unclear. We recommend ways to expand nationwide surveys to identify the actual reasons for why defaults work and discuss mandated choice policy as a viable solution to many arising conundrums. (shrink)

In the article “Nudging and Informed Consent”, Cohen argues that the use of “nudging” by physicians in the clinical encounter may be ethically warranted because it results in an informed consent where obligations for beneficence and respect for autonomy are both met. However, the author's overenthusiastic support for nudging and his quick dismissal of shared decision-making leads him to assume that “soft” manipulation is un-problematic and that “wisdom” on the side of medical professionals will suffice to guard against abuse. Opposing (...) this view, we propose that: 1) patient preferences and values should not be boiled down to rational or irrational decisions based on cognitive reasoning alone, 2) potential threats to the physician-patient must be mitigated and could be minimized by employing alternative strategies that acknowledge the impact of cognitive heuristics in shaping decision-making but maintain transparency and trust, and 3) patient preferences and values can be legitimately influenced only under specific circumstances. The latter include: (1) exhaustion of other means; (2) evidence that nudging is effective in a specific context; (3) evidence of clear and active public misinformation (e.g., industry promoting smoking); (4) explicit pubic dialogue between various stakeholders including medical professional societies about nudging; (5) upholding shared decision-making as a preferred approach; and (6) a rich understanding of clinical reality beyond the simple dichotomy of beneficence-autonomy. (shrink)

BackgroundPrevention of mother to child transmission of HIV remains a key public health priority in most developing countries. The provider Initiated Opt – Out Prenatal HIV Screening Approach, recommended by the World Health Organization lately has been adopted and translated into policy in most Sub – Saharan African countries. To better ascertain the ethical reasons for or against the use of this approach, we carried out a literature review of the ethics literature.MethodsPapers published in English and French Languages between 1990 (...) and 2015 from the following data bases were searched: Pubmed, Cochrane literature, Embase, Cinhal, Web of Science and Google Scholar. After screening from 302 identified relevant articles, 21 articles were retained for the critical review.DiscussionMost authors considered this approach ethically justifiable due to its potential benefits to the mother, foetus and society. The breaching of respect for autonomy was considered acceptable on the grounds of libertarian paternalism. Most authors considered the Opt - Out approach to be less stigmatizing than the Opt - In. The main arguments against the Opt - Out approach were: non respect of patient autonomy, informed consent becoming a meaningless concept and the HIV test becoming compulsory, risk of losing trust in health care providers, neglect of social and psychological implications of doing an HIV test, risk of aggravation of stigma if all tested patients are not properly cared for and neglect of sociocultural peculiarities.ConclusionsThe Opt – Out approach could be counterproductive in case gender sensitive issues within the various sociocultural representations are neglected, and actions to offer holistic care to all women who shall potentially test positive for HIV were not effectively ascertained. The Provider Initiated Opt – Out Prenatal HIV Screening option remains ethically acceptable, but deserves caution, active monitoring and evaluation within the translation of this approach into to practice. (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)

Victoria’s Voluntary Assisted Dying Act 2017 (Vic) became the first state law to permit VAD in Australia under limited circumstances from June 2019. Before this, many palliative care physicians relied on the doctrine of double effect (DDE) to justify the use of pain relievers for terminally ill patients that were known to hasten death. The DDE claims that there is a morally significant difference between intending evil and merely foreseeing some bad side-effect will occur as a result of one’s actions. (...) This article argues that the legacy of the DDE is promoting inequitable access to VAD in Victoria due to the assumption that death represents an “evil” for the patient and that the intentions of physicians providing VAD cannot be trusted. The latter claim relies on two common objections to the DDE: the risk of “purifying the intentions” and the issue of “closeness” when evaluating moral acts under this theory. (shrink)

In this chapter, we provide an overview of the ethical considerations relevant to the use of nudges in organ donation policy. We do not defend a position on the permissibility of nudging in this context, but instead aim to clearly outline the strongest arguments on the different sides of this issue that have been presented in the English-language scholarly bioethics literature. We also highlight the questions that are in need of further investigation. In part 1, we briefly discuss nudging before (...) considering proposals to use nudges to increase the number of registered organ donors, including opt-out donor registration systems and the use of “nudge statements.” In part 2, we discuss the use of nudges to influence the decision-making of family members in circumstances where they have a veto over the donation of their loved one’s organs. (shrink)

This collection features comprehensive overviews of the various ethical challenges in organ transplantation. International readings well-grounded in the latest developments in the life sciences are organized into systematic sections and engage with one another, offering complementary views. All core issues in the global ethical debate are covered: donating and procuring organs, allocating and receiving organs, as well as considering alternatives. Due to its systematic structure, the volume provides an excellent orientation for researchers, students, and practitioners alike to enable a deeper (...) understanding of some of the most controversial issues in modern medicine. (shrink)

Personal autonomy is often lauded as a key value in contemporary Western bioethics. Though the claim that there is an important relationship between autonomy and rationality is often treated as uncontroversial in this sphere, there is also considerable disagreement about how we should cash out the relationship. In particular, it is unclear whether a rationalist view of autonomy can be compatible with legal judgments that enshrine a patient's right to refuse medical treatment, regardless of whether the reasons underpinning the choice (...) are known and rational, or indeed whether they even exist. Jonathan Pugh brings recent philosophical work on the nature of rationality to bear on the question of how we should understand personal autonomy in contemporary bioethics. In doing so, he develops a new framework for thinking about the concept of autonomy, one that is grounded in an understanding of the different roles that rational beliefs and rational desires have to play in it. Pugh's account allows for a deeper understanding of d the relationship between our freedom to act and our capacity to decide autonomously. His rationalist perspective is contrasted with other prominent accounts of autonomy in bioethics, and the revisionary implications it has for practical questions in biomedicine are also outlined. (shrink)

Health ethics can justify the use of vaccination mandates. However, policies that pressurize parents to vaccinate their children can undermine traditional clinical ethics standards. The aim of this paper is to argue that the ethical impact of vaccination mandates can only be determined in the context of the clinical encounter. Public debate on the topic tends to be general in nature and, as a result, issues that require clarification to help sustain the trust of service users are underexamined. In addition, (...) ethical debates are hampered by a toxic dichotomy in the public sphere between those who claim a move away from parental choice is necessarily a serious ethical violation; and others who neglect serious consideration of ethical issues. This predicament permits flawed ethical claims to be made, and to remain unchallenged. Despite this, ethical concerns – including those relating to trust and individual freedom – are fundamental to sustaining confidence in vaccination. This has recently been highlighted by the Covid-19 pandemic which made accessing childhood vaccinations harder, leading to a further decline in uptake. The pandemic has also revealed the strength of public feeling towards infection control measures that restrict peoples’ freedoms. In this paper I argue that to minimize the ethical disruption associated with the use of vaccination mandates, it is essential to focus more attention on their impact in the clinic and to accurately identify the drivers of such tensions. (shrink)

A significant proportion of the U.S. population exhibits low health literacy. Evidence suggests that low health literacy is correlated with higher medical costs and poorer health outcomes. Even more concerning, evidence suggests that low health literacy threatens patients’ and families’ autonomy and exacerbates injustices in patients who are already vulnerable to difficulties navigating the health care system. There is also, however, increasing evidence that health literacy interventions—including initiatives such as plain language practices and teach-back—improve comprehension and usefulness of health care (...) information. I show how health literacy best practices can enhance the work of clinical ethicists in their primary roles of policy, consultation, and education. In the final section, I suggest ways health literacy initiatives may be enhanced with insights from clinical ethicists. (shrink)

Research from behavioural sciences shows that people reach decisions in a much less rational and well-considered way than was often assumed. The doctrine of informed consent, which is an important ethical principle and legal requirement in medical practice, is being challenged by these insights into decision-making and real-world choice behaviour. This article discusses the implications of recent insights of research on decision-making behaviour for the informed consent doctrine. It concludes that there is a significant tension between the often non-rational choice (...) behaviour and the traditional theory of informed consent. Responsible ways of dealing with or solving these problems are considered. To this end, patient decisions aids are discussed as suitable interventions to support autonomous decision-making. However, current PDAs demand certain improvements in order to protect and promote autonomous decision-making. Based on a conception of autonomy, we will argue which type of improvements are needed. (shrink)

Libertarian paternalism describes the idea of nudging—that is, steering individual decision-making while preserving freedom of choice. In medicine, libertarian paternalism has gained widespread attention, specifically with respect to interventions designed to promote healthy behaviours. Some scholars argue that nudges appropriately balance autonomy and paternalistic beneficence, while others argue that nudges inherently exploit cognitive weaknesses. This paper further explores the ethics of libertarian paternalism in public health. The use of nudges may infringe on an individual’s voluntary choice, autonomy and informed consent, (...) but they are ethically justified when there is a clear public health benefit to the manipulation of choice. (shrink)

To avoid potential abuse and respect patient autonomy, physicians have a moral obligation to obtain informed consent before performing any significant medical intervention. To give informed consent, a patient must be competent, understand her condition, options and their expected risks and benefits and must freely and expressly consent to one of those options. Shlomo Cohen challenges this conception of informed consent by constructing cases based on Edmund Gettier’s classic counterexamples to traditional theories of knowledge. In this paper, I argue Cohen-style (...) cases are not genuine threats to the concept of informed consent, however they provide an interesting challenge to theories of conscientious objection. (shrink)

Some philosophers have argued that during the process of obtaining informed consent, physicians should try to nudge their patients towards consenting to the option the physician believes best, where a nudge is any influence that is expected to predictably alter a person’s behaviour without restricting her options. Some proponents of nudging even argue that it is a necessary and unavoidable part of securing informed consent. Here I argue that nudging is incompatible with obtaining informed consent. I assume informed consent requires (...) that a physician tells her patient the truth about her options and argue that nudging is incompatible with truth-telling. Instead, nudging satisfies Harry Frankfurt’s account of bullshit. (shrink)

> The bullshitter may not deceive us, or even intend to do so, either about the facts or about what he takes the facts to be. What he does necessarily attempt to deceive us about is his enterprise. His only indispensably distinctive characteristic is that in a certain way he misrepresents what he is up to. 1 - Harry Frankfurt In both lying and truth-telling, the speaker intends the audience to believe what she says is true; that her enterprise is (...) to inform her audience. In contrast, the speaker who bullshits doesn’t care whether the audience believes what she says, rather she intends her audience to believe or do something else—to think highly of her, to buy what she is selling, or the like. I argue that nudging is incompatible with securing genuine informed consent.2 I assume, but do not argue, that informed consent requires truth-telling during adequate disclosure. When a physician nudges, her intention is to irrationally influence her patient’s choice, not inform. Because of this, nudging cannot be understood as truth-telling ; rather it is essentially bullshit.1 In " Truth be told," Jennifer Blumenthal-Barby and Peter A Ubel argue that not all nudging is incompatible with truth-telling, contending that ‘nudges can be bullshit,’ but that ‘nudging does not require bullshitting.’3 They ask us to consider the following: Vaccination: Consider a physician who wants her patient to get a vaccine. She tells him why the vaccine is important, by providing factually correct information about the vaccine. In other words, she engages in informed disclosure aimed at enhancing the patient’s understanding. At the same time, she also tells the patient that the majority of people his age get the vaccine. In other words, she engages in nudging the patient by …. (shrink)

Commercial genetic testing offered over the internet, known as direct-to-consumer genetic testing (DTC GT), currently is under ethical attack. A common critique aims at the limited validation of the tests as well as the risk of psycho-social stress or adaption of incorrect behavior by users triggered by misleading health information. Here, we examine in detail the specific role of advertising communication of DTC GT companies from a medical ethical perspective. Our argumentative analysis departs from the starting point that DTC GT (...) operates at the intersection of two different contexts: medicine on the one hand and the market on the other. Both fields differ strongly with regard to their standards of communication practices and the underlying normative assumptions regarding autonomy and responsibility. Following a short review of the ethical contexts of medical and commercial communication, we provide case examples for persuasive messages of DTC GT websites and briefly analyze their design with a multi-modal approach to illustrate some of their problematic implications. We observe three main aspects in DTC GT advertising communication: (1) the use of material suggesting medical professional legitimacy as a trust-establishing tool, (2) the suggestion of empowerment as a benefit of using DTC GT services and (3) the narrative of responsibility as a persuasive appeal to a moral self-conception. While strengthening and respecting the autonomy of a patient is the focus in medical communication, specifically genetic counselling, persuasive communication is the normal mode in marketing of consumer goods, presuming an autonomous, rational, independent consumer. This creates tension in the context of DTC GT regarding the expectation and normative assessment of communication strategies. Our analysis can even the ground for a better understanding of ethical problems associated with intersections of medical and commercial communication and point to perspectives of analysis of DTC GT advertising. (shrink)

Disease-specific stem cell therapies, created from induced pluripotent stem cell lines containing the genetic defects responsible for a particular disease, have the potential to revolutionize the treatment of refractory chronic diseases. Given their capacity to differentiate into any human cell type, these cell lines might be reprogrammed to correct a disease-causing genetic defect in any tissue or organ, in addition to offering a more clinically realistic model for testing new drugs and studying disease mechanisms. Clinical translation of these therapies provides (...) an opportunity to design a more systematic, accessible and patient-influenced model for the delivery of medically innovative treatments to chronically ill patients. (shrink)

In “Nudging and Informed Consent,” ShlomoCohen (2013) attempts to address the common objection against nudges that they are autonomy-thwarting because they foster irrationality. He explicitly focuses on informed consent, which he contrasts with the policy context in which health nudges are usually discussed. I think Cohen’s rich article is a significant contribution to the nudge literature. However, I have some concerns with the way he frames and motivates his inquiry...

Is implementing the beneficent nudge program morally permissible in worlds like ours? I argue that there is reason for serious doubt. I acknowledge that beneficent nudging is highly various, that nudges are in some circumstances morally permissible and even called for, and that nudges may exhibit respect for genuine autonomy. Nonetheless, given the risk of epistemic injustice that nudges typically pose, neither the moral permissibility of beneficent nudging in the abstract, nor its case-by-case vindication, appears sufficient to justify implementing a (...) nudge program in worlds like ours. Drawing on Miranda Fricker’s account of epistemic injustice, I argue that the cogent defense of any nudge program, relative to worlds like ours, stands in need of serious attention to its potential for fostering or sustaining epistemic injustice. A more specific point hinges on recognizing a form of epistemic injustice not enough attended to in the literature to date, which I call reflective incapacitational injustice. This includes relative disadvantages in the attaining of the capacity to engage in critical reason, such as the capacity to go in for potentially critical reasoned deliberation and discursive exchange concerning ends. Since Cass Sunstein’s First Law of behaviorally informed regulation would be taken, in worlds like ours, to justify indeterminately many nudges leading to such epistemic injustice we have general grounds for doubting the moral permissibility of this nudge program. We should hence oppose the implementation of any such program until it is shown not to violate the demands of epistemic justice. (shrink)

In an analysis of recent work on nudging we distinguish three positions on the relationship between nudging founded in libertarian paternalism and the protection of personal autonomy through informed consent. We argue that all three positions fail to provide adequate protection of personal autonomy in the clinical context. Acknowledging that nudging may be beneficial, we suggest a fourth position according to which nudging and informed consent are valuable in different domains of interaction.

It is a common experience among care professionals that persons with dementia often say ‘no’ to conventional caring measures such as taking medication, eating or having a shower. This tendency to say ‘no’ may also concern the use of assistive technologies such as fall detectors, mobile safety alarms, Internet for social contact and robots. This paper provides practical recommendations for care professionals in home health care and social care about how to respond to such resistiveness towards assistive technologies. Apart from (...) the option of accepting the ‘no’, it discusses a number of methods for influencing persons with dementia in order to overcome the ‘no’. These methods range from various non-coercive measures—including nudging—to coercion. It is argued that while conventional caring measures like those mentioned are essential for survival, health or hygiene, assistive technologies are commonly merely potentially beneficial supplements. With this in mind, it is concluded that care professionals should be more restrictive in using methods of influence involving some degree of pressure regarding assistive technologies than regarding conventional caring measures. (shrink)

Techniques from behavioral economics—nudges—may help physicians increase pediatric vaccine compliance, but critics have objected that nudges can undermine autonomy. Since autonomy is a centrally important value in healthcare decision-making contexts, it counts against pediatric vaccination nudges if they undermine parental autonomy. Advocates for healthcare nudges have resisted the charge that nudges undermine autonomy, and the recent bioethics literature illustrates the current intractability of this debate. This article rejects a principle to which parties on both sides of this debate sometimes seem (...) committed: that nudges are morally permissible only if they are consistent with autonomy. Instead, I argue that, at least in the case of pediatric vaccination, some autonomy-undermining nudges may be morally justified. This is because parental autonomy in pediatric decision-making is not as morally valuable as the autonomy of adult patients, and because the interests of both the vaccinated child and other members of the community can sometimes be weighty enough to justify autonomy-infringing pediatric vaccination nudges. This article concludes with a set of worries about the effect of pediatric vaccination nudges on parent-physician relationships, and it calls on the American Academy of Pediatrics to draw on scientific and bioethics research to develop guidelines for the use of nudges in pediatric practice and, in particular, for the use of pediatric vaccination nudges. (shrink)

This article highlights the limitations of the tendency to frame health- and wellbeing-related digital tools (mHealth technologies) as empowering devices, especially as they play an increasingly important role in the National Health Service (NHS) in the UK. It argues that mHealth technologies should instead be framed as digital companions. This shift from empowerment to companionship is advocated by showing the conceptual, ethical, and methodological issues challenging the narrative of empowerment, and by arguing that such challenges, as well as the risk (...) of medical paternalism, can be overcome by focusing on the potential for mHealth tools to mediate the relationship between recipients of clinical advice and givers of clinical advice, in ways that allow for contextual flexibility in the balance between patiency and agency. The article concludes by stressing that reframing the narrative cannot be the only means for avoiding harm caused to the NHS as a healthcare system by the introduction of mHealth tools. Future discussion will be needed on the overarching role of responsible design. (shrink)

Nudging is a concept in behavioural science, political theory and economics that proposes indirect suggestions to try to achieve non-forced compliance and to influence the decision making and behaviour of groups and individuals. Researchers in medical ethics are currently discussing whether nudging is ethically permissible in healthcare. In this article, we examine current knowledge about how different decisions are made and how this decision-making process pertains to patients. We view this knowledge in light of the nursing project and the ongoing (...) debate regarding the ethical legitimacy of nudging in healthcare. We argue that it is insufficient to discuss nudging in nursing and healthcare in light of free will and patient autonomy alone. Sometimes, nurses must take charge and exhibit leadership in the nurse–patient relationship. From the perspective of nursing as leadership, nudging becomes a useful tool for directing and guiding patients towards the shared goals of health, recovery and independence and away from suffering. The use of nudging in nursing to influence patients’ decisions and actions must be in alignment with the nursing project and in accordance with patients’ own values and goals. (shrink)

The realm of non-rational influence, which includes nudging, is home to many other morally interesting phenomena. In this paper, I introduce the term bumping, to discuss the category of unintentional non-rational influence. Bumping happens constantly, wherever people make choices in environments where they are affected by other people. For instance, doctors will often bump their patients as patients make choices about what treatments to pursue. In some cases, these bumps will systematically tend to make patients’ decisions worse. Put another way: (...) doctors will sometimes harm their patients by bumping them in systematic ways. I use the case of medical overuse, the provision of medical services where the likely harm outweighs the likely benefit to the patient, as a touchstone for arguing that doctors who systematically bump their patients towards harm can be blameworthy for their unwitting influence. (shrink)

BackgroundHealth behavior change is among the top recommendations for improving health of patients with lifestyle-related chronic diseases. An array of behavior change techniques have been developed to support behavior change initiation and maintenance. These BCTs often show limited success when they are not informed by theory, leading to a mismatch between the intention of the BCT and patients’ needs or expectations. Previous studies have identified a number of resources which patients may require to initiate and maintain health behavior change. Indeed, (...) not yet well established is how BCTs address these resources, i.e., the functional mechanisms of BCTs.PurposeProvide a theoretical framework of the functional mechanisms of BCTs for developing and implementing successful interventions for health behavior change.MethodsConceptual review, including literature analysis and synthesis as well as conceptualization of a new model based on the synthesis.ResultsThrough the integration of dual-process models as well as reward and motivation proceeding, i.e., affective, emotional, or intuitive neurobiological cues, into the rational framework of rather linear cognitive or task-related decision progress, we categorize previously identified resources into three distinct sets: external, internal reflective, and internal affective resources. Based on this triad, we classify BCTs according to their functional mechanisms into facilitating, boosting, and nudging. Consequently, we present a simplified Behavior Change Resource Model that is centered on patients’ resources.ConclusionThe model can be applied to develop health behavior change interventions, which promote engagement and empowerment. Future studies should aim at testing the applicability and practicality of the BCRM. (shrink)

The aim of this article is to question the epistemic presuppositions of applying behavioural science in public policymaking. Philosophers of science who have examined the recent applications of the behavioural sciences to policy have contributed to discussions on causation, evidence, and randomised controlled trials. These have focused on epistemological and methodological questions about the reliability of scientific evidence and the conditions under which we can predict that a policy informed by behavioural research will achieve the policymakers’ goals. This paper argues (...) that the philosophical work of Helen Longino can also help us to have a better and fuller understanding of the knowledge which the behavioural sciences provide. The paper advances an analysis of the knowledge claims that are made in the context of policy applications of behavioural science and compares them with the behavioural research on which they are based. This allows us to show that behavioural policy and the debates accompanying it are based on an oversimplified understanding of what knowledge behavioural science actually provides. Recognising this problem is important as arguments that justify reliance on the behavioural sciences in policy typically presume this simplification. (shrink)