Social Insurance Based on Personal Savings

Many countries have reformed, or plan to reform, their pension system. The trend is to move from an entitlement based system to a system in which contributions accumulate in some form of personal savings account. In recent years proposals have been made to apply a personal savings account also to other elements of social insurance, such as unemployment insurance, social assistance, health care costs and others. This paper presents a simple model and a simulation to compare the lifetime consequences of replacing a wide range of social insurance systems with savings account based social insurance. The results indicate that savings account based social insurance can be designed to provide the same economic security as offered by a generous welfare state, and yet lower marginal taxes considerably.     

THE WEALTH EFFECTS OF INCOME INSURANCE

Precautionary savings models suggest that wealth should rise with income risk. Risk is reduced by means-tested transfers, however, which implies that transfer programs should discourage private wealth accumulation. We offer a comprehensive empirical assessment based on variation across states in the generosity of a number of programs, specifically unemployment insurance and means-tested transfers (Aid to Families with Dependent Children and Food Stamps). We use monthly data on married couples from the Survey of Income and Program Participation (SIPP) to regress wealth on income, income risk, and various measures of transfer generosity. The results support the precaution-ary savings model and reveal moderate negative wealth effects of both unemployment insurance and means-tested transfers, with an elasticity of about −0.18.     

Social insurance and social justice—Another look at the antipoverty effects of social insurance programs

This paper analyzes social insurance programs in the United States to determine if they support the principles of social justice, with special emphasis on the principle of preferential treatment of the poor. The paper also examines the antipoverty effects of social insurance programs. The major conclusions are the following: (1) social insurance programs generally are consistent with the principles of social justice, but parts of certain programs clearly violate the norms of social justice; (2) social insurance programs are especially powerful in reducing the poverty rate and poverty gap for the elderly, but are generally ineffective in reducing the poverty rate for single-parent families with related children under age 18; (3) social insurance programs have only a minor impact in reducing the poverty rate among married-couple families with related children under age 18; and (4) although the Social Security payroll results in a small increase in the poverty rate, social insurance programs are especially effective in reducing income inequality.     

A social economist’s search for justice: Comment

This paper analyzes social insurance programs in the United States to determine if they support the principles of social justice, with special emphasis on the principle of preferential treatment of the poor. The paper also examines the antipoverty effects of social insurance programs. The major conclusions are the following: (1) social insurance programs generally are consistent with the principles of social justice, but parts of certain programs clearly violate the norms of social justice; (2) social insurance programs are especially powerful in reducing the poverty rate and poverty gap for the elderly, but are generally ineffective in reducing the poverty rate for single-parent families with related children under age 18; (3) social insurance programs have only a minor impact in reducing the poverty rate among married-couple families with related children under age 18; and (4) although the Social Security payroll results in a small increase in the poverty rate, social insurance programs are especially effective in reducing income inequality.     

The impact of health insurance on households’ financial choices: Evidence from Vietnam

This paper investigates the impact of health insurance on families' financial service choices in Vietnam using TVSEP data from three waves in 2013, 2016, and 2017. The endogeneity is handled via a recursive multivariate probit model. The findings indicate that while health insurance has no effect on private health insurance, it has a positive effect on savings and investments and a negative effect on credit choice. The multivariate probit model's results are robust to both the instrumental variable two-stage least squares model and the bivariate probit model. In addition, correlations between error components in financial service choice equations indicate a possible pattern of household financial usage. The results suggest that health insurance improves households' financial well-being. The implication of the findings is that when developing social security policies aimed at achieving universal health insurance, the influence of health insurance on household finances should not be underestimated.     

Precautionary Savings in Mexico: Evidence From the Mexican Health and Aging Study

Precautionary saving is the additional saving done by individuals to protect them financially in situations of uncertainty and reduce their vulnerability for negative shocks that may affect their consumption levels. This paper investigates the existence and extent of savings motivated by precaution in Mexico for people aged between 50 and 75, using data from the Mexican Health and Ageing Study 2003. The empirical strategy is based on a test of the direct relationship between the accumulated wealth and the uncertainty generated by the social security status, in particular the availability of health insurance, accounting also for the expectation to receive a retirement pension. The endogeneity‐corrected estimates do not yield results that unequivocally support the existence of private savings as a risk protection mechanism, implying that the public protection system has an important role in reducing the vulnerability of the population studied.     

Informal insurance in social networks

This paper studies bilateral insurance schemes across networks of individuals. While transfers are based on social norms, individuals must have the incentive to comply. We investigate the structure of self-enforcing insurance networks. Network links play two distinct and possibly conflictual roles. They act as conduits for both transfers and information; affecting the scope for insurance and the severity of punishments upon noncompliance. Their interaction leads to a characterization of stable networks as suitably “sparse” networks. Thickly and thinly connected networks tend to be stable, whereas intermediate degrees of connectedness jeopardize stability. Finally, we discuss the effect of discounting on stability.     

State mandated benefits and the small firm's decision to offer insurance

In the last decade, the number of Americans without health insurance has grown, partly due to an erosion in employer-based coverage among workers. This paper examines the extent to which state-mandated benefit requirements and other state insurance regulations discourage small firms in the private sector from providing health benefits. Using data on 1320 firms observed in 1985 and 492 firms observed in 1988, we estimate two models of small firms' decisions to offer health insurance (one for each data set), and then use them to assess the effects that mandates had on purchasing decisions in both years. We estimate that 19 percent of noncoverage among sample businesses in 1985 and 43 percent of noncoverage in the 1988 sample was attributable to state-mandated benefits. State continuation-of-coverage requirements were particularly burdensome for firms. With continued growth in the number of state mandated benefit requirements, we should expect a steady rise in the small firm's propensity to forgo insurance coverage.     

社会互动与投资选择

个体的投资选择是否受到社会互动的影响?社会互动的作用机制是什么?采用2005年中国12城市投资者行为调查数据,本文发现,总体而言,社会互动推动了个体当前和未来期望对银行存款、外汇、股票、债券、期货、基金、借出、做生意、保险金、收藏品、房地产、理财产品、彩票等投资项目的参与。社会互动的积极作用主要是通过个体遵循参考群体成员的投资选择所体现的社会规范来实现的。此外,内生互动带来的感受交流和信息获得分别推动了个体当前对保险金和未来期望对债券的投资,而情景互动降低了个体未来参与股市的期望。     

Social insurance for the elderly

We study the effects of retirement benefits provided by social insurance programs on consumption, portfolio choice, and retirement in a continuous-time theoretical model. We show that people tend to retire earlier with an increase in retirement social insurance benefits (SIBs), consistent with empirical evidence. We show also that people tend to increase savings before retirement in anticipation of increased retirement benefits, a counter-intuitive result. The response of risky investment with an increase in the SIBs is ambiguous, depending on parameter values. The overall social welfare will increase with an increase in SIBs if the balanced budget constraint is satisfied. We also investigate the effects of changes in the two streams of the SIBs (paid in perishable goods and cash) and the proportion of workers in entire population on social welfare.     

Optimal Social Insurance with Linear Income Taxation*

We study optimal social insurance aimed at insuring disability risk in the presence of linear income taxation. Optimal disability insurance benefits rise with previous earnings. Optimal insurance is incomplete even though disability risks are exogenous and verifiable so that moral hazard in disability insurance is absent. Imperfect insurance is optimal because it encourages workers to insure themselves against disability by working and saving more, thereby alleviating the distortionary impact of the redistributive income tax on labor supply and savings.     

Insurance of Household Risks and the Rebalancing of the Chinese Economy: Health Insurance,Health Expenses and Household Savings

This paper studies the effects of a public insurance system, the New Cooperative Medical Scheme (NCMS) on household savings in rural China. We develop a theoretical model in which we explain the impact of health insurance on savings through the impact of health insurance on out‐of‐pocket (OOP) health expense given the household level of wealth and seriousness of illness. We test the model empirically using data from the China Health and Nutrition Survey. We run endogenous and exogenous quantile regressions to evaluate the effects of NCMS participation on the distributions of household savings and OOP health expense. The impact of NCMS varies with the seriousness of illness. The NCMS induces an increase in OOP health expense for mild illness and, inversely, a decrease in health payments for more serious illnesses. The NCMS also leads to a higher incidence of catastrophic healthcare spending. The impact of the NCMS, given a certain state of illness, also varies with the household level of wealth. Poor households face health expense for both mild and serious illnesses. As the NCMS has opposite effects on the OOP expense for these two kinds of illness, we observe no effect on poor households’ precautionary savings. Because the decrease in OOP health expense for mild illness is larger for less poor households, the NCMS induces a decrease in their savings. For the most affluent households, the higher decrease in OOP spending on most moderate illness is dominated by a sharp increase in catastrophic expense, causing an increase in savings. To significantly reduce household savings and enhance household consumption, the NCMS has to offer better coverage against both serious and catastrophic health risks.     

The politics of redistributive social insurance

This paper analyses the political support for a social insurance that includes elements of redistribution when there exists an imperfect private insurance alternative. Individuals differ both in their income and risk. The social insurance is compulsory and charges an income-related contribution with pooling of risks. The private insurance is voluntary and charges a contribution based on individual risks. However due to the adverse selection problem, private insurance companies provide only partial insurance. Adopting a non-expected utility model, we show that there is a general majority support for social insurance and that this support is increasing with risk aversion. We also show that a mixed insurance is politically impossible, regardless of the degree of redistribution of social insurance and the joint distribution of risk and income in the population. Lastly, we analyse how the political support for social insurance is affected by any change in its redistributive component and the possibility of using genetic tests.     

Structure of Financial Savings During Indian Economic Reforms

This paper conducts nonparametric tests to examine whether data on financial savings in India can be rationalized in terms of a utility function of a representative economic agent. The nonparametric test has an advantage over its parametric counterpart in that it does not assume the existence of a utility function per se and checks whether the representative consumer’s demand structure can at all be rationalized by a utility function. Our test results of the necessary and sufficient conditions of the weak separability hypothesis suggest that data on financial savings in India are consistent with the existence of a utility function for a representative individual with a sub-preference where contractual savings (insurance and provident funds) can be separated out. This result could facilitate the construction of a suitable financial aggregate using these assets.     

SAVINGS MOBILIZATION,FINANCIAL DEVELOPMENT AND LIBERALIZATION: THE CASE OF MALAYSIA

This paper attempts to identify the key factors behind Malaysia's remarkable savings performance. Drawing on the life cycle theory, the saving function is estimated by incorporating other relevant structural features and institutional settings of the Malaysian economy into the specification. Particular emphasis has been placed on the roles of financial factors in mobilizing funds in the private sector. The results suggest that financial deepening and increased banking density tend to encourage private savings. Development of insurance markets and liberalization of the financial system, however, tend to exert a dampening effect on private savings.     

人口年龄结构、养老保险制度与最优储蓄率

近年来 ,中国城镇居民的消费倾向出现了大幅度的下降。为了解释这个令人困惑的现象 ,我们首先构建了一个可以把握中国养老保险制度之基本特征的叠代模型。我们进而发现 ,人口老龄化一般说来会激励居民增加储蓄。由于人口老龄化是计划生育政策的自然结果 ,它很可能是造成中国城镇居民储蓄倾向上升的一个重要因素 ,本文中的数值模拟结果为上述判断提供了一些依据。最后 ,我们对中国的黄金律问题进行了讨论。基于多种原因 ,我们认为中国目前的储蓄率并不是社会最优储蓄率的体现 ,降低储蓄率很可能成为一个帕累托改进。     

论商业保险在构建和谐社会中的企业社会责任

在当前这样一个经济、社会转型期,商业保险作为国民经济的助推器和社会民生的稳定器,对于构建一个和谐发展的社会是十分重要的.本文从商业保险承担社会责任的动因方面做出分析,对影响商业保险承担社会责任的因素进行思考,并对如何在构建和谐社会的历史进程中有效推动商业保险承担社会责任提出对策建议.     

ASSET‐BASED UNEMPLOYMENT INSURANCE*

This article studies a model of consumption, savings, and job search in which a borrowing constraint limits self‐insurance. The government administers the unemployment insurance program that may condition on an individual’s asset position, but not on her efforts of finding a job. To compensate for the impediments to self‐insurance, benefit payments should optimally be set higher at lower wealth levels and peak for borrowing‐constrained individuals with zero liquid funds. A quantitative exercise reveals that the U.S. unemployment insurance program is surprisingly close to optimal for the asset poor, but far too generous for wealthier individuals.     

Pay-as-you-go Social Security and the Distribution of Altruistic Transfers

This paper studies the impact of an unfunded social security system on the distribution of altruistic transfers in a framework where savings are due to both life cycle and random altruistic motivations. We show that the effect of social security on the distribution of these transfers depends crucially on the strength of the bequest motive in explaining savings behaviour. We measure this strength by the expected weight that individuals attach to the utility of future generations. On the one hand, if the bequest motive is strong, then an increase in the social security tax raises the bequests left by altruistic parents. On the other hand, when the importance of altruism in motivating savings is sufficiently low, the increase in the social security tax could result in a reduction of the bequests left by altruistic parents under some conditions on the attitude of individuals toward risk and on the relative returns associated with private saving and social security. Some implications concerning the transitional effects of introducing an unfunded social security scheme are also discussed.