世界経済・社会統計 = World development indicators

计量经济分析 = Econometric analysis

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

\"What are your assumptions (implicit as well as explicit) about the most effective way to manage people?\" So began Douglas McGregor in this 1960 management classic. It was a seemingly simple question he asked, yet it led to a fundamental revolution in management. Today, with the rise of the global economy, the information revolution, and the growth of knowledge-driven work, McGregor's simple but provocative question continues to resonate-perhaps more powerfully than ever before. Heralded as one of the most important pieces of management literature ever written, a touchstone for scholars and a handbook for practitioners, The Human Side of Enterprise continues to receive the highest accolades nearly half a century after its initial publication. Influencing such major management gurus such as Peter Drucker and Warren Bennis, McGregor's revolutionary Theory Y-which contends that individuals are self-motivated and self-directed-and Theory X-in which employees must be commanded and controlled-has been widely taught in business schools, industrial relations schools, psychology departments, and professional development seminars for over four decades. In this special annotated edition of the worldwide management classic, Joel Cutcher-Gershenfeld, Senior Research Scientist in MIT's Sloan School of Management and Engineering Systems Division, shows us how today's leaders have successfully incorporated McGregor's methods into modern management styles and practices. The added quotes and commentary bring the content right into today's debates and business models. Now more than ever, the timeless wisdom of Douglas McGregor can light the path towards a management style that nurtures leadership capability, creates effective teams, ensures internal alignment, achieves high performance, and cultivates an authentic, value-driven workplace--lessons we all need to learn as we make our way in this brave new world of the 21st century.

The Human Side of Enterprise.

https://cws.journals.yorku.ca/index.php/cws/article/download/14795/13847

Men and Women of the Corporation

The purpose of this paper is to examine the effect of debt holdings on the sensitivity of firms’ investment to availability of internal funds.,For a panel data set of 27 Ghanaian listed firms for the period 2007–2013, the paper applies the Euler equation approach to the empirical modeling of investment.,The study finds support for the assertion that listed firms face less severe corporate control problems and lower financing constraints, and thus, have lower investment cash flow sensitivities. The study also finds that a significant positive sensitivity of investment to internal funds is associated with firms that have high debt holdings.,An implication of this study is that firms with high debt holdings face greater challenges in accessing external finance. These firms are likely to experience under-investment which at a macro level would translate into lower investments and economic growth for the country.,Empirical literature document that in the presence of market imperfections, investments of financially constrained firms become sensitive to the availability of internal finance. There are also contradictory evidences regarding the pattern of the observed investment cash flow sensitivity. This study examines the effect of debt holdings on the sensitivity of firms’ investment to availability of cash flow. This is yet to be empirically tested despite some theoretical explanations.

Debt holdings and investment cash flow sensitivity of listed firms

This paper examines the effect of risk on bank performance in Ghana. A panel data analysis of 18 banks over the period 1997-2008 is used in the study. The results show that lower risk levels lead to an increase in bank performance. In addition, the results show that when ownership interacts with risk, domestic banks that reduce risk are more likely to perform better than foreign banks with similar risk profiles. We also find that when size interacts with risk, bigger banks which engage in lower risk taking have lower performance. Relative to smaller banks, larger banks could increase activities aggressively and accommodate more risk leading to higher performance. Our results generally call for prudence in bank risk management by risk managers and central bankers alike.

Bank risk and performance in Ghana

The study explored the determinants of small and medium-sized nontraditional exporters' choice of type of finance (formal or informal). The empirical results revealed a negative relationship between age and formal finance, suggesting that newer firms depend more on formal finance and less on informal finance. In addition, the study found positive and significant relationships between formal finance and size and growth of the firm. This suggests that larger and high-growth firms require more funds to finance their expansion and growth opportunities and therefore employ formal finance. Finally, the results of the study also indicated that the proportion of formal finance increases with increasing international activities, suggesting that, as firms engage more in international business, they employ more formal finance and less informal finance. Recommendations are made in this regard.

How are SMEs Financed? Evidence from the Ghanaian Nontraditional Export Sector

This study aims to analyze the potential implications of economic freedom and competition for bank stability.,Using system generalized method of moments and data from 139 banks across 11 Sub-Saharan African (SSA) countries during the period 2006–2012, this study considers whether the degree of economic freedom affects the relationship between competition and bank stability.,The results show evidence of the competition-fragility hypothesis in SSA banking, but suggests that beyond a setting threshold, increases in market power may also be damaging to bank stability. Financial freedom has a negative effect on bank stability, suggesting that banks operating in environments with greater financial freedom generally tend to be less stable or more risky. The authors also find evidence of a conditional effect of economic freedom on the competition–stability relationship, implying that bank failure is more likely to occur in countries with greater economic freedom, but with low competition in the banking sector.,The results suggests to policy makers that a moderate level of competition and economic freedom may be the appropriate policy to ensure the stability of banks.,The study provides insight on the competition–bank stability relationship, by providing new empirical evidence on the effect of economic freedom, which has not been previously considered.

Economic freedom, competition and bank stability in Sub-Saharan Africa

This article examines the gender composition of corporate boards of listed companies in Ghana. Results indicate that women were insignificantly represented and that younger firms had more women on their boards than firms established four decades ago. In addition the study found that it is only after the initial listing that companies found it necessary to appoint women directors. As firms expand they tend to employ fewer women on their corporate boards. Also women were engaged more in the service and financial sectors than the manufacturing and construction industries. Interestingly local companies appointed relatively more women as board members than their multinational counterparts. (authors)

Joshua Abor

Papers

Debt holdings and investment cash flow sensitivity of listed firms

Bank risk and performance in Ghana

How are SMEs Financed? Evidence from the Ghanaian Nontraditional Export Sector

Economic freedom, competition and bank stability in Sub-Saharan Africa

Gender and the composition of corporate boards: A Ghanaian study.