延迟退休年龄、内生生育率与养老金

本文通过构建内生生育率的OLG模型,从微观视角考察了延迟退休年龄对生育率、养老金替代率及其个人养老金收入的影响。研究表明:(1)延迟退休年龄会提高均衡时的生育率水平,但提高幅度非常有限。(2)生育率的提高会增加未来劳动力供给,促进养老金替代率上升和养老金收入增加,而延迟退休年龄延长了养老保险缴费期限,也会促进养老金替代率上升和养老金收入增加;但同时,延迟退休年龄将使得预防性储蓄下降,资本积累降低,工资收入下降,养老金收入降低。因此,延迟退休年龄会使养老金替代率上升。当资本产出弹性大于或等于0.5时,延迟退休年龄会使得养老金收入降低;当资本产出弹性小于0.5时,在平均预期寿命较大或养老保险缴费比例较高的情形下,养老金收入会随着退休年龄的延迟而增加,反之,其会随着退休年龄的延迟而降低。进一步地,将模型拓展到包含人力资本的情形,延迟退休年龄仍会提高均衡时的生育率与养老金替代率。     

At What Age Do You Expect to Retire? Retirement Expectations and Increases in the Statutory Retirement Age

We analyse the extent to which an increase in the statutory retirement age affects individuals' retirement expectations. Understanding how individuals adjust their expectations is crucial to the evaluation of this policy, since retirement expectations directly affect other important decisions such as labour supply, engagement in (further) education and, of course, savings and investments. We consider the 2007 German pension reform that legislated an increase in the statutory retirement age from 65 years to 67. Our analysis is based on a longitudinal study that directly asks respondents at what age they expect to retire. Using a difference‐in‐differences approach, we look at the changes in subjective retirement expectations over time and estimate the extent to which they can be attributed to the 2007 reform. We find that the reform shifted the retirement expectations of the younger cohorts, although there is some heterogeneity in the way individuals adjusted. While there are no significant differences between men and women, lower‐educated individuals failed to revise their expectations. As these individuals usually acquire both lower pension claims and lower private savings, the fact that they have been slower in updating their retirement expectations causes concern regarding their income security after retirement.     

There's something about saving …

The paper considers how people should plan their saving, given certain assumptions about inheritance and changes in household circumstances. The results are produced by a model that takes into account tax and state benefits as well as various private savings vehicles. It concludes that, for many households, saving for retirement through a ‘pension’ might not be optimum and that the best strategy is to vary the incidence and allocation of saving in response to changes in household circumstances.     

Impact of Replacing a Defined Benefit Pension with a Defined Contribution Plan or a Cash Balance Plan

Abstract

Four pension plan conversions are examined to determine the impact on retirement benefits of workers. The study was based on interviews with top management, employee surveys, and actuarial analysis of retirement benefits under the old and new pension plans. In general, workers who leave the firm prior to the age of early retirement can expect increased benefits under the new defined contribution and cash balance plans, whereas older, more senior workers can expect to accrue smaller benefits after the plan conversions. Recognizing these potential adverse effects, the employers in our studies provided various types of transition benefits to existing workers or gave employees the choice of remaining in the old defined benefit plan. Employee surveys reveal that younger workers are more supportive of the new pension plans than are older workers. These case studies also indicate that communication by managements with their employees is very important to the successful implementation of plan conversions.     

How Behavioral Finance Can Inform Retirement Plan Design1

Several key lessons for pension design have emerged in the last decade from behavioral economics and finance research. This article analyzes the insights from this literature on how workers decide to save, manage their retirement investments, and draw down their assets in retirement. The aim is to understand how workers and retirees deviate from the rational, well‐informed agents that underpin economic theory, public policy, and often retirement plan design. The evidence suggests that many people save too little, others make poor investment decisions, and still others spend their accumulated assets too quickly in retirement. The “behavioral” reasons for such tendencies include overconfidence, limited self‐control, the overvaluation of the present at the expense of the future, susceptibility to “framing,” and an aversion to realizing losses. By shedding light on why people fail to achieve an ideal outcome on their own, this literature offers practical guidance to plan sponsors and policymakers who must design, regulate, and evaluate the institutions that help provide for economic security in old age. More specifically, the literature suggests that the plan design should be made automatic for the many individuals unwilling to exercise full control over their retirement savings choices. Recommended design features include automatic enrollment, scheduled annual savings increases, and default investment options or managed account programs that represent optimal portfolio choices.     

Financial literacy and voluntary savings for retirement: novel causal evidence

ABSTRACT

We utilise recent Household Finance and Consumption Survey microdata to report first causal effects of financial literacy on voluntary private pension schemes participation for a Central and Eastern European (CEE) country, namely Slovakia. Savings for retirement in the supplementary pension schemes are positively associated with financial literacy after controlling for a set of relevant socio-economic variables. One additional correctly answered financial literacy question leads to a 5.6 percentage points increase in the probability of having a voluntary pension savings plan in our ordinary least squares estimates. The causal impact of financial literacy increases to 19.5 percentage points when we address potential endogeneity problems by novel to the literature instrumental variables.     

The Displacement Effect of Public Pensions on the Accumulation of Financial Assets*

The generosity of public pensions may depress private savings and provide incentives to retire early. While there is plenty of evidence supporting the latter effect, there remains considerable controversy over whether public pensions crowd out private savings. This paper uses international micro‐data sets collected over recent years to investigate whether public pensions displace private savings. The identification strategy relies not only on cross‐country differences in generosity but also on differences in the progressivity or non‐linearity of pension formulas across countries. We estimate that an extra dollar of pension wealth depresses accumulated financial assets around the time of retirement by 22 cents. An extra 10,000 dollars in public pension wealth reduces the average retirement age by roughly one month, which implies an elasticity of years of retirement with respect to pension wealth of 0.15.     

On the Asset Allocation of a Default Pension Fund

We characterize the optimal default fund in a defined contribution (DC) pension plan. Using detailed data on individuals' holdings inside and outside the pension system, we find substantial heterogeneity within and between passive and active investors in terms of labor income, financial wealth, and stock market participation. We build a life‐cycle consumption‐savings model, with a DC pension account and an opt‐out/default choice, that produces realistic investor heterogeneity. Relative to a common age‐based allocation, implementing the optimal default asset allocation implies a welfare gain of 1.5% during retirement. Much of the gain is attainable with a simple rule of thumb.     

Communicating the need for additional savings in the face of retiree health benefit cutbacks.

In preparing for retirement, employees need to consider not only their pension benefits but also the challenge of financing their retirement health care needs. Various trends evolving in our society indicate that future retirees will be increasingly dependent on their own retirement savings. Evidence suggests that employees are not fully aware of the significance of health costs in retirement and must be educated to the need to save for retiree health care expenses. This article discusses the issues of Medicare reduction and retiree health benefit cutbacks and the relative communication and education challenges such issues pose to employers.     

Longevity risk, retirement savings, and financial innovation

Over the last couple of decades unprecedented increases in life expectancy have raised important concerns for retirement savings. We solve a life-cycle model with longevity risk, which can be hedged through endogenous saving and retirement decisions. We investigate the benefits of financial assets designed to hedge the shocks to survival probabilities. When longevity risk is calibrated to match forward-looking projections, those benefits are substantial. This lends support to the idea that such hedging should be pursued by defined benefit pension plans on behalf of their beneficiaries. Finally, we draw implications for optimal security design.     

论社会保障

在对美国社会保障制度改革的政策建议中,彼得·戴蒙德教授主张通过养老金相关参数的调整来适应未来养老基金支出增长的压力,方式是改善养老金待遇标准和税收规则以确保养老基金的精算平衡。其基本观点是:第一,社会保障是退休后收入的基础,是防止贫困和失去保险机会的保障,所以社会保障制度应该建立;第二,因为人们很少自愿进行养老金积累,年金化的强制性公共养老金就非常重要,一是能平衡终生收入,二是能够提供就业激励;第三,公共养老金计划对工人及其家庭,特别是儿童、配偶和遗属有重要保障作用;第四,延迟退休能提高未来的消费,设计合理的待遇累进原则和退休审查制度会有助于增加劳动激励;第五,养老金的代际转移是一种再分配,较多的再分配会对工作生涯形成激励;第六,为实现精算平衡,应引入自动平衡机制来自动调整税率和待遇水平,以减少立法的压力。     

Affordable retirement: light at the end of the tunnel

Compared to previous studies, the 2004 Replacement Ratio Study from Aon Consulting/Georgia State University shows an increase in the amount of income today's workers need at retirement to maintain their preretirement standard of living. After describing the study's replacement ratio findings, the authors estimate lump sums needed at retirement and required adjustments for both nonincreasing annuities and retiree medical expenses. They then describe steps innovative plan sponsors can take to encourage participants to understand and undertake their responsibility to acquire the substantial personal savings needed for a comfortable retirement.     

The tax benefit of income smoothing

A worker can reduce tax liability by contributing to a private pension plan when marginal tax rates are high and withdraw pension benefits when marginal tax rates are low. We quantify the tax benefit of income smoothing through the private retirement system and find that it is negligible. This conclusion is important to households, investment advisers, tax policymakers, and scholars engaged in financial retirement planning.     

University-Provided Retirement Planning Support and Retiree Financial Satisfaction During Retirement: Differences by Gender, Job Classification, and Planning Behavior

Sound financial planning and financial advice is necessary to achieve retirement income adequacy. The shift from defined benefit to defined contribution pension plans and the recent bankruptcy of Enron Corporation underscore the importance of managing retirement accumulation and liquidation risks. This study analyzes the effectiveness and adequacy of institutional-provided information and advice on employees' retirement planning decisions and their satisfaction with financial resources during retirement. Results suggest that retirement planning should begin earlier in an employee's career and that employer-provided retirement information and advice is a highly valued service. Gender, planning practices, job classification, and age are all significant predictors of satisfaction with financial resources during retirement. Targeting women and union employees with retirement information and advice that focuses on allocating contributions using a balanced portfolio approach should result in significant increases in satisfaction with financial resources during retirement. Regulatory objectives should focus on reducing retirement accumulation and liquidation risks, improving the delivery of professional financial advice to plan participants, and expanding qualified retirement plan choice for all labor force participants. To encourage employer participation in employee retirement planning, employers acting in "good faith" should be federally protected from liability for providing retirement planning information and advice to employees.     

Management of Portfolio Depletion Risk through Optimal Life Cycle Asset Allocation

Members of defined contribution (DC) pension plans must take on additional responsibilities for their investments, compared to participants in defined benefit (DB) pension plans. The transition from DB to DC plans means that more employees are faced with these responsibilities. We explore the extent to which DC plan members can follow financial strategies that have a high chance of resulting in a retirement scenario that is fairly close to that provided by DB plans. Retirees in DC plans typically must fund spending from accumulated savings. This leads to the risk of depleting these savings, that is, portfolio depletion risk. We analyze the management of this risk through life cycle optimal dynamic asset allocation, including the accumulation and decumulation phases. We pose the asset allocation strategy as an optimal stochastic control problem. Several objective functions are tested and compared. We focus on the risk of portfolio depletion at the terminal date, using such measures as conditional value at risk (CVAR) and probability of ruin. A secondary consideration is the median terminal portfolio value. The control problem is solved using a Hamilton-Jacobi-Bellman formulation, based on a parametric model of the financial market. Monte Carlo simulations that use the optimal controls are presented to evaluate the performance metrics. These simulations are based on both the parametric model and bootstrap resampling of 91 years of historical data. The resampling tests suggest that target-based approaches that seek to establish a safety margin of wealth at the end of the decumulation period appear to be superior to strategies that directly attempt to minimize risk measures such as the probability of portfolio depletion or CVAR. The target-based approaches result in a reasonably close approximation to the retirement spending available in a DB plan. There is a small risk of depleting the retiree’s funds, but there is also a good chance of accumulating a buffer that can be used to manage unplanned longevity risk or left as a bequest.     

Pension benchmarks: empirical estimation and results for the United States and Germany

Benchmark replacement rates are a key parameter for retirement plans. Often, a pension level of around 70 per cent of net income during working life is considered as an adequate choice. However, this heuristic value is left unjustified, and data-based benchmarks are limited. In this paper, we propose to estimate a pension-level benchmark based on keeping the living standard achieved during working life constant after retirement. Applying parametric, semi-parametric and non-parametric estimation methods to data from the United States and Germany, we find that a net pension income of around 100 per cent of the last net working-life income, plus or minus 10 percentage points, is required to keep the living standard constant. However, we also find that the outcome of the exercise can depend on how ‘living standards’ are measured.     

Pension benefits, wealth accumulation, and capital market equilibrium: a life cycle hypothesis-based dynamic model

This paper examines the impacts of pension benefits on capital asset pricing in conjunction with wealth accumulation and retirement, and derives and tests a dynamic capital asset pricing model (CAPM) within the framework of a life cycle hypothesis-based dynamic model. The life cycle hypothesis-based dynamic model maximizes the expected utility of the individual's lifetime wealth in a continuous time process. An optimal solution of the individual's wealth path, incorporating the ages of retirement and death, is obtained and, based on the optimal wealth path, an analysis of comparative dynamics is pursued. The dynamic CAPM is then derived from the optimal wealth path; simulation and nonparametric tests are undertaken to evaluate the performance of the dynamic CAPM as compared to the traditional model which does not consider the impacts of pension benefits and the static model that incorporates the effects of pension benefits. The test results suggest that the proposed dynamic CAPM closely states the expected rate of return for a capital asset; that the new dynamic CAPM is preferable over the static model that is preferable over the traditional model; and that the three models considered are statistically distinguishable from one another.     

Worries and plans as individuals approach retirement

The primary objective of an employment-based retirement plan is to provide a secure and adequate income for workers throughout retirement. In the defined contribution (DC) framework, asset accumulation is a means to the end, but not the end. Drawing retirement income from savings and paying for health care expenses in retirement are the two issues that concern individuals the most as they approach retirement. This article examines the attitudes of near-retirees regarding these risks and their plans for managing them. The author discusses how DC plan design can have a major impact on how individuals convert their retirement savings to retirement income; differences in survey responses between those who have consulted a financial advisor or other financial professional and those who have not; and the role of trust in implementing advice.     

Retirement income decisions: the silent generation speaks

Survey findings indicate that members of the Silent Generation--those born between 1933 and 1945, and perhaps the last ones to rely heavily on a defined benefit pension plan--feel confident that they will have enough money to live comfortably to at least the age of 85. Yet, many are at risk of outliving their retirement assets. They overestimate their Social Security payouts and the likelihood that they will work in retirement, and they underestimate their postretirement expenses, especially health care. Many lack safeguards against overspending and do not understand their longevity risk. The Silents' experiences in preparing for and living in retirement may offer some valuable lessons to be learned by the baby boomers and the generations that follow as they plan for a financially secure future.     

Florida's Pension Election: From DB to DC and Back

During the year 2002, the State of Florida's 600,000 public employees were given the choice of converting their traditional defined benefit (DB) pension plan into an individual‐account defined contribution (DC) plan with full control over asset allocation and investment decisions. To mitigate some of the risk and uncertainty in the decision, the State granted each employee electing the DC plan an additional option to switch back (i.e., change their mind once) at any point prior to retirement. This option has been labeled the 2nd election by the State and the cost of reentry is fixed at the accumulated benefit obligation of their pension entitlement, which is the present value of the life annuity. Our article presents some original analytic insights relating to the optimal time and financial value of this unique 2nd election. Although our model is deterministic in nature, we believe that it provides a number of intuitive insights that are quite robust. Our results can be contrasted with Lachance, Mitchell, and Smetters (2003) . We estimate that the increase in retirement wealth that arises from having the 2nd election is equivalent to at most 30 percent in future value, and only when utilized optimally. Furthermore, for most State employees above the age of 45, the 2nd election has little economic value because the DB plan dominates the DC plan from day one. Of course, it remains to be seen what percent of Florida's 600,000 employees will elect to behave rationally with their newfound pension autonomy.