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.

/pdf/the-economic-importance-of-financial-literacy-theory-and-17mb1g4cfb.pdf

The Economic Importance of Financial Literacy: Theory and Evidence

The study showed as the economy steadily recovered, working women’s personal finances also improved. In particular, working women now find it easier to make ends meet, and are using alternative financial services less often. Further, women are less likely to carry credit card debt or engage in expensive credit card behaviors. However, several subgroups—those who are early in their careers, those with children, and those who have experienced marital disruption—still show signs of financial distress. In 2015, financial fragility decreased among working women, but one-third still state they would not be able to cover an unexpected expense of $2,000 in a month’s time.

Financial Capability and Financial Literacy Among Working Women: New Insights

The Importance of Financial Literacy: Evidence and Implications for Financial Education Programs*

Recent studies show that financial literacy is strongly positively related to household wealth, but there is also substantial cross-sectional variation in both financial literacy and wealth levels. To explore these patterns, the authors develop a calibrated stochastic life cycle model which features endogeneous financial literacy accumulation. Their model generates substantial wealth inequality, over and above what standard lifecycle models produce. This is due to the fact that higher earners typically have more hump-shaped labor income profiles and lower retirement benefits which, when interacted with the precautionary saving motive, boosts their need for private wealth accumulation and thus financial literacy. They show that the fraction of the population which is rationally "financially ignorant" depends on the level of labor income uncertainty as well as the generosity of the retirement system.

Optimal Financial Literacy and Saving for Retirement

The great majority of working Americans are unprepared to face the difficult task of planning for retirement. In fact, the personal savings rate has been holding steady at zero for several years, down from 8 percent in the mid-1980s. Overcoming the Saving Slump explores the many challenges facing workers in the transition from a traditional defined benefit pension system to one that requires more individual responsibility, analyzing the considerable impediments to saving and evaluating financial literacy programs devised by employers and the government. Mapping the changing landscape of pensions and the rise of defined contribution plans, Annamaria Lusardi and others investigate new methods for stimulating saving and promoting financial education drawing on the experience of the United States as well as countries that have privatized their welfare systems, including Sweden and Chile. This timely volume pinpoints where human resources departments, the financial industry, and government officials have succeeded—or failed—in bridging the way to a new retirement system. As the workforce ages and more pensions disappear each second, Lusardi’s findings will be invaluable for economists and anyone facing retirement.

Overcoming the Saving Slump

I examine financial literacy—specifically knowledge of risk—using data from surveys in the United States and other countries. I show that risk literacy is very low; the majority of individuals lack knowledge of concepts such as risk diversification and do not understand the relationship between risk and return. Findings are strikingly similar across countries; a third of survey respondents in most countries report that they do not know the answer to risk literacy questions. I also show that risk literacy matters for financial decisions; those who are more knowledgeable about risk are more likely to have precautionary savings and to plan for retirement. Given that individuals have much greater responsibility for their financial well-being before and after retirement than in the past, addressing lack of financial literacy, including risk literacy, may provide new ways to promote saving and financial security.

Annamaria Lusardi

Papers

Financial Capability and Financial Literacy Among Working Women: New Insights

The Importance of Financial Literacy: Evidence and Implications for Financial Education Programs*

Optimal Financial Literacy and Saving for Retirement

Overcoming the Saving Slump

Risk Literacy