Welfare Regimes for Aging Populations: No Single Path for Reform

We consider recent trends in pension policies in OECD countries in light of demographic aging associated with welfare regime type (Liberal, Social Democratic, Continental, and Southern European). These regime types represent different responsibilities assumed for social security on the part of the market, the state, and the family. While there are significant differences in labor market characteristics, the demographic similarities in aging bring similar pressures for pension reforms across OECD countries. These reforms address fiscal issues in state pensions, typically by increasing the length of the working life, placing more of the pension responsibility on individuals, or converting to defined‐contribution approaches. Our study shows that there is no single path for pension reform. While there are some variations, welfare states tend to follow their traditional paths, which differ across welfare regime types.     

Population Aging and the Rising Cost of Public Pensions

Rapid population aging is raising concerns about the sustainability of public pension systems in high‐income countries. The first part of this study identifies the four factors that determine trends in public pension expenditures: population aging, pension benefit levels, the mean age at retirement, and the labor force participation rate. The second part presents projections to 2050 of the impact of demographic trends on public pension expenditures in the absence of changes in pension benefits, labor force participation, and age at retirement. These projections demonstrate that current trends are unsustainable, because without reforms population aging will produce an unprecedented and harmful accumulation of public debt. A number of projection variants assess the potential impact of policy options aimed at improving the sustainability of public pension systems. Although the conventional responses are considered, particular attention is given to the demographic options of encouraging higher fertility and permitting more immigration. This analysis is illustrated with data from the seven largest OECD countries.     

美国社会保障退休金确定机制——方法、特点与启示

养老金待遇确定机制是公共养老金制度的核心内容之一。从三个方面系统研究了美国社会保障退休金确定机制:在退休年龄方面,实现了劳动关系和社会保障关系的相对分离,通过引入“全额领取年龄”建立了“早减晚增”式初始退休金调节机制;在计算办法方面,建立了基于个体的、全国统一的基本保险金额计算办法,并通过分级加权实现了收入再分配和减少老年贫困等功能;在待遇调整方面,建立了基于生活成本调整的退休金指数化自动调整机制。立足我国基本养老保险制度实践、借鉴美国退休金制度设计经验,本文认为我国基本养老保险待遇确定机制改革的方向是引入较为宽松灵活的退休政策、待遇计发与全国性指标挂钩以促进全国统筹和制度公平、增强待遇计发对参保和缴费行为的激励作用、尽快建立科学合理的待遇调整机制。     

老龄化下德国养老保障制度改革研究

人口老龄化是世界各国养老保障制度共同面临的严峻挑战。作为老龄化相当严重的典范福利国家,德国在过去20多年间对养老保障制度进行了一系列的改革,其宗旨是优先确保公共养老金的长期可持续发放,同时兼顾维护社会公平的诉求。本文拟回顾德国养老保障制度的改革之路,并从可持续性和公平性两个角度去分析改革的成效,进而探究德国改革的成功经验和其实践中亟待反思和解决的现实问题。     

Demographic change, endogenous labor supply and the political feasibility of pension reform

Options for reforming unfunded public pension schemes that are now being discussed all share the feature that the burden induced by demographic change would be shifted towards presently living and away from unborn generations. Existing models of the political economy of pension reform can not explain why such reform options are being discussed at all. We present an alternative model in which the possibility of evasion of workers from payment of social security taxes is taken into account by modelling a labor supply function. It turns out that the burden of demographic change may fall completely or at least predominantly on the pensioners. Thus this type of model can much better explain recent trends in legislature on unfunded public pension systems in industrial democracies. Received: 7 January 1999/Accepted: 20 December 1999     

Assessing the effects of an early retirement program

We investigate induced retirement effects of the Norwegian early retirement program AFP and emphasize effects caused by relocations of some individuals from disability pension and unemployment to AFP. Theoretical considerations predict that AFP unambiguously induces more early retirement. Analyzing Norwegian register data 1994–96 with parametric and non-parametric methods, we demonstrate that i) economic incentives influence the retirement decision, ii) there is a significant net induced retirement effect, iii) by a conservative judgment, at least 50% of the AFP retirees would have stayed in the labor force without the scheme.All correspondence to Espen Bratberg. We are indebted to the referees for detailed remarks, which significantly improved the paper. Financial support from the Norwegian Research Council and the Ministry of Health and Social Affairs is greatly appreciated. We are grateful for valuable comments from Erik Hernæs and Astrid Grasdal, seminar participants at the Norwegian School of Management in Oslo, the Institute for International Economic Studies in Stockholm, and the University of Linz, the 2000 Conference of the European Society for Population Economics in Bonn, and the German-Norwegian Seminar on Social Insurance in Berlin, 2000. Bratberg would also like to thank the Humboldt University for its hospitality during a stay in the winter of 2003. Responsible editor: Christoph M. Schmidt.     

Social security,social welfare and the aging population

This study examines the effects of pay-as-you-go social security programs in aging economies when the middle-aged both educate their dependent children and subsidize the retirement of the old. Using an overlapping generations framework in which agents are three-period lived but timing of death in the third period is uncertain, we analyze the effects of social security tax schemes, under various demographic assumptions, on capital accumulation, education expenditures, social welfare, and economic growth. We find that in many cases social security crowds out education, and reduces economic growth and social welfare. Received: 29 April 1998/Accepted: 3 March 1999     

退休年龄比较研究

近年来多个国家和地区实施了退休年龄改革,以缓解人口老龄化所带来的养老金支付压力,而我国有关部门也正在研究推迟退休年龄。通过世界172个国家和地区退休年龄的比较,发现我国现行退休年龄制度存在身份差别、低于世界平均水平等不足。根据全球退休年龄改革的趋势,建议我国采取分步走的方式推迟退休年龄。     

Pension reform, employment by age, and long-run growth

We study the effects of pension reform on hours worked by three active generations, education of the young, the retirement decision of older workers, and aggregate growth in a four-period OLG model. The model explains important facts well for many OECD countries. Our simulation results prefer an intelligent pay-as-you-go system above a fully funded private system. Positive effects on employment and growth are the strongest when the pay-as-you-go system includes a tight link between individual labor income and the pension, and when it attaches a high weight to labor income earned as an older worker to compute the pension assessment base.     

Social security policy with public debt in an aging economy

This paper analyzes a social security policy with public debt in an overlapping generations growth model. In particular, the paper considers a situation in which population aging causes a heavy burden of social security payments where public debt is issued by the government to finance the payment. In the model presented below, an economy with an aging population may achieve two dynamically inefficient equilibria. Under certain conditions, the effects of pension reform and population aging on capital accumulation are entirely different between the two equilibria. Received: 23 July 2001/Accepted: 22 August 2002 I am deeply grateful to an anonymous referee and Professor A. Cigno, the Editor of this journal, for their valuable comments and suggestions. I am also grateful to Kazuyo Tanimoto and Kiheiji Nishida for their research assistance. Any remaining errors are my own. The research reported here was conducted as part of a larger study, the “Project on Intergenerational Equity” at the Institute of Economic Research, Hitotsubashi University. Financial support from Kani Hoken Bunka Zaidan is also gratefully acknowledged. Responsible editor: Alessandro Cigno.     

中国城镇基本养老保险金“年龄缺口”分析——基于延长退休年龄的假设

基于我国目前城镇基本养老保险的制度设计,以及对未来中国人口老龄化的预期,可以说城镇基本养老制度,在未来所要承受巨大的挑战将是毫无疑问的。目前理论界也就此问题提出了各种解决方法以及相关的效用分析。本文通过对“延长法定退休年龄”这一解决基本养老制度压力的途径进行假设,对不同法定退休年龄状态下,从目前到2050年的时间范围内,对我国城镇基本养老保险金的“年龄缺口”进行描述和分析。从而为应对人口老龄化带来的制度压力提供理论支持。     

The relative risk aversion hypothesis of educational choice

Analysing young people's educational choices, we derive and test implications of a relative risk aversion hypothesis: that educational choices are made so as to minimize the risk of ending up with a lower level of education than one's parents. These implications are in general different from what one would expect from human capital theory. We use a unique data set which combines data from administrative registers on young people's pathways through the educational system and their family background with survey data on their academic abilities at lower secondary school. The evidence is partly in favour of the relative risk aversion hypothesis. Received: 19 August 1999/Accepted: 10 January 2001 All correspondence to Eskil Heinesen. We are grateful to Karin Blix Mogensen and Martin B?g for excellent research assistance, and to two anonymous referees, John F. Ermisch, Martin Browning, Michael Rosholm, Paul Bingley, and participants at the conference of the European Society for Population Economics in Turin, 1999, for valuable comments and suggestions. Responsible editor: John F. Ermisch.     

我国退休年龄延迟设计研究

本文针对当前我国＂未富先老＂、人口红利对经济增长的促进作用减弱及因人口老龄化进程加速而引起的社会养老负担过重等问题,依据人均预期寿命、劳动者参加工作的初始年龄和不同类型劳动对人体体力要求的差异等,就从事不同类型劳动的退休年龄标准进行了延迟设计。然后以国际上自我养老负担系数的合理取值范围为标准,就延迟设计方案的自我养老负担系数进行了测算。结果表明：延迟设计方案的退休年龄标准在当前及未来较短时期比较适合我国国情。但随着人均预期寿命的增长,也要结合自我养老负担系数的合理取值范围对退休年龄逐步调整,才能有效解决我国因人口老龄化逐步加深而引起的各种社会经济问题。本文试图为我国调整退休年龄标准提出可供借鉴的依据,进而有效地解决我国因人口老龄化逐步加深而对社会经济发展造成的负面影响。     

The Retirement Life Course in America at the Dawn of the Twenty-First Century

As the baby boom cohorts expand the number of U.S. retirees, population estimates of the employment, withdrawal and reentry behaviors of older Americans’ remain scarce. How long do people work? How frequently is retirement reversed? How many years are people retired? What is the modal age of retirement? And, how do the patterns for women compare to those for men? Using the 1992–2004 Health and Retirement Study, we estimate multistate working life tables to update information on the age-graded regularities of the retirement life course of men and women in the United States. We find that at age 50 men can expect to spend half of their remaining lives working for pay, while women can expect to spend just one-third. Half of all men and women have left the labor force by ages 63 and 61, respectively. Although the majority of retirement exits are final, variation in the nature and duration of the retirement process is substantial, as about a third of men’s and women’s exits are reversed. By quantifying these patterns for men and women, we provide a sound empirical basis for evaluating policy designed to address the financial pressures population aging places on public and private pension systems.     

Social security reforms and poverty among older dual-earner couples

Existing retirement studies have, in the main, focused only on labor supply decisions of couples in which the husband has been the sole earner. This paper extends the focus of analysis to examine retirement among dual-earner couples. It further develops a framework for assessing how several past and prospective Social Security reforms might be expected to affect older working couples' retirement ages and retirement incomes. Two questions are addressed in some detail: (1) What are the likely effects of various changes in Social Security rules on the retirement decisions of older working women and their husbands? and (2) How might these changes alter the incidence of poverty among retired dual-earner couples? Empirical evidence from the United States suggests that many benefit reforms currently being discussed in policy circles will enhance Social Security system revenues, but will also worsen the economic status of an important segment of dual-earner couples.     

Tax reform,population ageing and the changing labour supply behaviour of married women

The burden of financing retirement incomes in an ageing population is predicted to rise sharply in future decades. This paper investigates the effects of reforms to the Australian tax-benefit system involving a greater reliance on proportional taxation for raising revenue and a more targeted welfare system for cutting government expenditure, in order to reduce expected budget deficits. Estimates of changes in net incomes and hours of work suggest that reforms of this kind shift the tax burden to lower and middle income households with a second earner and that they can have counter-productive labour supply effects. The study explores the impact of projected increases in female work force participation and illustrates the importance of shifts in the labour supply of married women in predicting the fiscal effects of demographic change.I wish to thank the discussants of this paper, Sijbren Cnossen and Hiromitsu Ishi, for their detailed and constructive comments which have been most helpful in revising the paper. Thanks are also due to John Buchanan, Glenn Jones, John McCallum and Elizabeth Savage for their comments and suggestions.This research has been supported by a grant from the Australian Research Council.     

Retirement against the demographic trend: More older people living longer, working less, and saving less?

The American population is aging rapidly and individuals are living longer. Yet Americans are saving less and older workers are leaving the labor force at younger and younger ages. The accelerated drop in labor force participation corresponds roughly to the introduction of Social Security and the adaption of employer-provided pension plans. I have illustrated that Social Security and employer-provided pension plans provide substantial incentive to leave the labor force early. The quantitative effect of this inducement is illustrated by simulating the effects of changes in pension plan and Social Security provisions on the retirement decisions of employees in a large firm, who are covered by a typical defined benefit pension plan. Scheduled Social Security changes would have little effect on the retirement decisions of employees with a typical defined benefit pension plan like the one considered here. But if the pension plan provisions were changed to correspond to the Social Security changes, the effect would be very large. And, although not contemplated by current legislation, it is clear that an increase in the Social Security early retirement age would have a substantial effect on the early retirement rates of the large number of employees not covered by a pension plan.     

Intergenerational redistribution in a small open economy with endogenous fertility

For pay-as-you-go financed pension systems, claims may be calculated according to individual contributions (income) or the number of children of a family. We analyse the optimal structure of these parameters in a model with endogenous fertility. It is shown that for both structural determinants there exists no interior solution of the problem of intragenerational utility maximisation. Thus, pure systems are always welfare maximizing. Furthermore, children-related pension claims induce a fiscal externality that tends to be positive. The determination of the optimal contribution rate shows that the widely accepted Aaron-condition is in general a misleading indicator for the comparison of fully funded and pay-as-you-go financed pension systems. Received March 12, 1996 / Accepted January 27, 1997     

Institutional rules, labour demand and retirement through disability programme participation

We use matched employer–employee data from Finland to model transitions out of work into sick leave and disability retirement. To identify the role of institutional factors, we exploit reforms that changed medical requirements for disability pension eligibility and experience-rated employer contributions. We find that transitions to sick leave and disability pension benefits are relatively rare in growing establishments, but rather common in establishments with a high degree of excess worker turnover. We also show that transitions to disability retirement depend on the stringency of medical screening and the degree of experience rating applied to the employer.