NUDGE: IMPROVING DECISIONS ABOUT HEALTH, WEALTH, AND HAPPINESS by Richard H. Thaler and Cass R. Sunstein Penguin Books, 2009, 312 pp, ISBN 978-0-14-311526-7This book is best described formally as a general explanation of and advocacy for libertarian paternalism, a term coined by the authors in earlier publications. Informally, it is about how leaders, systems, organizations, and governments can nudge people to do the things the nudgers want and need done for the betterment of the nudgees, or of society. It is paternalism in the sense that "it is legitimate for choice architects to try to influence people's behavior in order to make their lives longer, healthier, and better", (p. 5) It is libertarian in that "people should be free to do what they like - and to opt out of undesirable arrangements if they want to do so", (p. 5) The built-in possibility of opting out or making a different choice preserves freedom of choice even though people's behavior has been influenced by the nature of the presentation of the information or by the structure of the decisionmaking system. I had never heard of libertarian paternalism before reading this book, and I now find it fascinating.Written for a general audience, this book contains mostly social and behavioral science theory and models, but there is considerable discussion of structure and process that has roots in mathematical and quantitative modeling. One of the main applications of this social system is economic choice in investing, selecting and purchasing products and services, systems of taxes, banking (mortgages, borrowing, savings), and retirement systems. Other quantitative social choice systems discussed include environmental effects, health care plans, gambling, and organ donations. Softer issues that are also subject to a nudge-based approach are marriage, education, eating, drinking, smoking, influence, spread of information, and politics. There is something in this book for everyone.The basis for this libertarian paternalism concept is in the social theory called "science of choice", the study of the design and implementation of influence systems on various kinds of people. The terms Econs and Humans, are used to refer to people with either considerable or little rational decision-making talent, respectively. The various libertarian paternalism concepts and systems presented are tested and compared in light of these two types of people. Two foundational issues that this book has in common with another book, Network of Echoes: Imitation, Innovation and Invisible Leaders, that was also reviewed for this issue of the Journal are that 1 ) there are two modes of thinking (or components of the brain) - an automatic (intuitive) process and a reflective (rational) process and 2) the need for conformity and the desire for imitation are powerful forces in human behavior. …

Nudge: Improving Decisions about Health, Wealth, and Happiness

行銷硏究 : Marketing research

25. Multiple Imputation for Nonresponse in Surveys. By D. B. Rubin. ISBN 0 471 08705 X. Wiley, Chichester, 1987. 258 pp. £30.25.

Multiple Imputation for Nonresponse in Surveys

We investigate conditions sufficient for identification of average treatment effects using instrumental variables. First we show that the existence of valid instruments is not sufficient to identify any meaningful average treatment effect. We then establish that the combination of an instrument and a condition on the relation between the instrument and the participation status is sufficient for identification of a local average treatment effect for those who can be induced to change their participation status by changing the value of the instrument. Finally we derive the probability limit of the standard IV estimator under these conditions. It is seen to be a weighted average of local average treatment effects.

Evolution and Rationality Some Recent Game-Theoretic Results. Identification and Estimation of Local Average Treatment Effects

This paper undertakes an assessment of a rapidly growing body of economic research on financial literacy. We start with an overview of theoretical research which casts financial knowledge as a form of investment in human capital. Endogenizing financial knowledge has important implications for welfare as well as policies intended to enhance levels of financial knowledge in the larger population. Next, we draw on recent surveys to establish how much (or how little) people know and identify the least financially savvy population subgroups. This is followed by an examination of the impact of financial literacy on economic decision-making in the United States and elsewhere. While the literature is still young, conclusions may be drawn about the effects and consequences of financial illiteracy and what works to remedy these gaps. A final section offers thoughts on what remains to be learned if researchers are to better inform theoretical and empirical models as well as public policy.

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The Economic Importance of Financial Literacy: Theory and Evidence

Financial literacy and retirement planning in the Netherlands

Increasingly, individuals are in charge of their own financial security and are confronted with ever more complex financial instruments. However, there is evidence that many individuals are not well-equipped to make sound saving decisions. This paper demonstrates widespread financial illiteracy among the U.S. population, particularly among specific demographic groups. Those with low education, women, African-Americans, and Hispanics display particularly low levels of literacy. Financial literacy impacts financial decision-making. Failure to plan for retirement, lack of participation in the stock market, and poor borrowing behavior can all be linked to ignorance of basic financial concepts. While financial education programs can result in improved saving behavior and financial decision-making, much can be done to improve these programs' effectiveness.

/pdf/financial-literacy-an-essential-tool-for-informed-consumer-2y92w6pzu7.pdf

Financial Literacy: An Essential Tool for Informed Consumer Choice?

We examine financial literacy in the US using the new National Financial Capability Study, wherein we demonstrate that financial literacy is particularly low among the young, women, and the less-educated. Moreover, Hispanics and African-Americans score the least well on financial literacy concepts. Interestingly, all groups rate themselves as rather well-informed about financial matters, notwithstanding their actual performance on the key literacy questions. Finally, we show that people who score higher on the financial literacy questions are much more likely to plan for retirement, which is likely to leave them better positioned for old age. Our results will inform those seeking to target financial literacy programmes to those in most need.

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Financial Literacy and Retirement Planning in the United States

We examine households’ financial fragility by looking at their capacity to come up with $2,000 in 30 days. Using data from the 2009 TNS Global Economic Crisis Study, we document that approximately one-quarter of U.S. respondents are certain they could not come up with that sum. If we include respondents who report being probably unable to do so, nearly half of respondents are financially fragile. Although financial fragility is more severe among low-income households, a sizable fraction of seemingly middle-class Americans are also at risk. Respondents with low educational attainment and no financial education, families with children, those who have suffered large wealth losses, and the unemployed are also more likely than others to report being unable to cope with a financial shock. Households’ own savings are the resource used most often to deal with shocks, but resources of family and friends, formal and alternative credit, increased work hours, and sale of possessions are also used frequently, especially among some subgroups. These results indicate the need to look beyond precautionary savings to understand how families cope. We also find evidence suggestive of a “pecking order” of coping methods, with savings first in line. Comparing financial fragility and methods of coping among the United States and seven other industrialized countries, we find differences in coping ability but also general evidence of a consistent ordering of methods.

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Financially Fragile Households: Evidence and Implications

Using a stochastic life cycle model with endogenous financial knowledge accumulation, we show that financial knowledge is a key determinant of wealth inequality. The mechanism we posit is that financial knowledge enables individuals to better allocate re- sources over their lifetimes in a world of uncertainty and imperfect insurance. Moreover, because of how the U.S. social insurance system works, better-educated individuals have the most to gain from investing in financial knowledge. As a result, making financial knowledge accumulation endogenous amplifies differences in accumulated retirement wealth over the life cycle. According to our estimates, from 30 to 40 percent of wealth inequality can be accounted for by financial knowledge.

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Annamaria Lusardi

Papers

Financial literacy and retirement planning in the Netherlands

Financial Literacy: An Essential Tool for Informed Consumer Choice?

Financial Literacy and Retirement Planning in the United States

Financially Fragile Households: Evidence and Implications

Optimal Financial Knowledge and Wealth Inequality