A structural dynamic microsimulation model of household savings and labour supply

A structural model of the household is described that represents current best-practice in the analysis of savings and labour supply responses to the policy environment. Care has been taken in specifying the model so that it represents an appropriate basis for the analysis of incentive effects to policy change, and for exploring the empirical support for alternative structural assumptions. Matching the model to survey data for the UK reveals some interesting puzzles in relation to the timing of retirement.     

Social security, retirement age and optimal income taxation

It is often argued that implicit taxation on continued activity of elderly workers is responsible for the widely observed trend towards early retirement. In a world of laissez-faire or of first-best efficiency, there would be no such implicit taxation. The point of this paper is that, when first-best redistributive instruments are not available, because some variables are not observable, the optimal policy does imply a distortion of the retirement decision. Consequently, the inducement of early retirement may be part of the optimal tax-transfer policy. We consider a model in which individuals differ in their productivity and their capacity to work long and choose both their weekly labor supply and their age of retirement. We characterize the optimal non-linear tax-transfer that maximizes a utilitarian welfare function when weekly earnings and the length of active life are observable while individuals' productivity and health status are not observable.     

Optimal Social Insurance and Health Inequality

This paper integrates into public economics a biologically founded, stochastic process of individual aging. The novel approach enables us to quantitatively characterize the optimal joint design of health and retirement policy behind the veil of ignorance for today and in response to future medical progress. Calibrating our model to Germany, our analysis suggests that the current social insurance policy instruments are set close to the (constrained) socially optimal levels, given proportional contribution rates for health and pension finance, the equivalence principle in the pension system, and a common statutory retirement age. Future progress in medical technology calls for a potentially drastic increase in health spending and a higher retirement age without lowering the pension contribution rate. Interestingly, from an ex ante point of view, medical progress and higher health spending are in conflict with the goal to reduce health inequality.     

Social Desirability of Earnings Tests

Abstract. In many countries, pension systems involve some form of earnings test; i.e. an individual's benefits are reduced if he has labor income. This paper examines whether or not such earnings tests emerge when pension system and income tax are optimally designed. We use a simple model with individuals differing both in productivity and in their health status. The working life of an individual has two 'endings': an official retirement age at which he starts drawing pension benefits (while possibly supplementing them with some labor income) and an effective age of retirement at which professional activity is completely given up. Weekly work time is endogenous, but constant in the period before official retirement and again constant (but possibly at a different level), after official retirement. Earnings tests mean that earnings are subject to a higher tax after official retirement than before. We show under which conditions earnings tests emerge both under a linear and under a non-linear tax scheme. In particular, we show that earnings tests will occur if heterogeneities in health or productivity are more significant after official retirement than before.     

河南省人口可持续发展与全面建设小康

党的十六大提出全面建设小康社会，解决好经济快速稳定增长和控制人口是关键问题之一，人口可持续发展追在眉睫。河南省人口可持续发展的关键是解决好人口数量多、素质低下，人口产业结构变化缓慢，老龄化速度加快等阻碍全面建设小康社会的严重问题。对策是：河南省要控制人口数量，提高人口质量。     

On the Fairness of Early-Retirement Provisions

Abstract. A crucial parameter for increasing the retirement age is the early-retirement discount of the public pension system. Critics of the present German system argue that the downward adjustment of the pension for early retirees is too small compared with a 'fair' system and thus encourages early retirement. We discuss several notions of 'fairness' of early-retirement provisions and propose a concept called 'distributive neutrality', which states that the ratio between total benefits and total contributions should not depend systematically on the individual's ability. By applying this concept to the German retirement benefit formula and taking empirically estimated relationships between annual income (as a proxy for ability), life expectancy and retirement age into account, we show that at the present discount rate of 3.6% per year there is redistribution from low to high earners, which, surprisingly, could be attenuated by raising the discount rate.     

Public pension programmes and the retirement of married couples in Denmark

In this paper we study the economic determinants of the joint retirement process of married couples. We propose a tractable dynamic discrete choice model for retirement decisions which allows for non-trivial saving behaviour. We estimate the model on a 1% sample of Danish couples of potential retirement age drawn from a population-based administrative register. The introduction and subsequent reforms of a publicly financed early retirement programme provide us with variation in the data to insure identification of the parameters of interest: the elasticities of participation/retirement with respect to income flows. Our estimates imply a significant asymmetry in the sensitivity of retirement behaviour of men and women with respect to variation in their own, or their spouse's, income flows.     

Framing of economic news and policy support during a pandemic: Evidence from a survey experiment

We examine how news outlets’ communication of macroeconomic information affects policy support during the COVID-19 crisis. In our survey experiment based on a representative sample from Germany, respondents are exposed to an expert forecast of GDP growth. Individuals either receive no information, the baseline forecast, or real-world media frames of the same forecast. We find that positive framing of economic growth increases policy support. This effect is stronger for respondents with more pessimistic macroeconomic expectations. Negatively framed economic news are perceived as more credible and hence less surprising in times of recession, not translating into political opinion.     

Increasing life expectancy and optimal retirement in general equilibrium

We analytically assess the effects of changes in longevity on the interest rate, the consumption-savings behavior, and the optimal retirement decision within a dynamic general equilibrium setting. We derive a simple sufficient condition for which the optimal retirement age always increases with life expectancy. Numerical assessment reveals that for realistic parameter values that reflect the situation in industrialized countries, the optimal retirement age indeed increases with life expectancy and the sufficient condition tends to be fulfilled. Together with the fact that the actual retirement age did not increase in industrialized countries over the last decades, while there have been large improvements in longevity, this leads us to conclude that strong monetary and institutional incentives for early retirement exist and these counteract the effects of increasing life expectancy. Our policy conclusion is that the retirement age should be partially linked to life expectancy and that incentives for early retirement should be removed.     

延迟退休会提高社会福利水平吗?

文章基于延迟退休可能带来就业挤出和闲暇损失的现实背景,在动态一般均衡世代交叠模型框架下通过引入异质性消费者并根据中国经济校准主要参数,在控制延迟退休对中国劳动力市场冲击影响的基础上,模拟分析了延迟退休政策对企业职工福利水平的长期影响。研究分析表明：(1)无论是采用保持现有的缴费率不变的政策方式还是保持养老金待遇不变的政策方式,延迟退休均能提高城镇企业职工的社会福利水平———第一种政策会增加社会福利3.66%,第二种政策会增加社会福利1.1%;在保持养老保险缴费率不变的情况下,从长期看,延迟退休5年会使社会福利最大化。(2)最优的退休年龄与劳动力市场状态息息相关,如果当前就业形势严峻,最优退休年龄需要相应降低。     

Sick of work or too sick to work? Evidence on self-reported health shocks and early retirement from the BHPS

We follow individuals as they retire using discrete-time hazard models applied to a stock sample from 12 waves of the British Household Panel Survey. We use a generalised ordered probit model to explore the existence of reporting bias and to purge the self-reported measure of health of this bias. This model takes into account the possibility that anticipated retirement may influence reporting of health. There is evidence that health shocks are a determinant of retirement age. This is the case for both men and women and is observed for both health limitations and a measure based on latent health status derived from the generalised ordered probit model. While the size of the health effect varies according to how we measure health, the relative effect is large compared to the other variables, and in particular when compared to the effects of private pensions. However numerical simulations show that this high hazard ratio interacts with the, relatively low, incidence of new health limitations among the age group of interest to generate only a modest number of excess early retirements. Further, our results do not show evidence that the health status of their partner affects the hazard of early retirement for both men and women. Having an employed partner does reduce the hazard of early retirement.     

How real people make long-term decisions: The case of retirement preparation

Large variations in retirement wealth are common, with some households accumulating hundreds of thousands of dollars and others accumulating next to nothing. We examine to what extent formal planning or simple rules of thumb contribute to these differences in wealth accumulation. In particular, we investigate whether those who follow simple rules of thumb or those who come up with more complete plans accumulate more wealth than those who take an unsystematic approach. We test this empirically using a specifically designed survey about retirement preparation. We find that people who rely on a rule of thumb behave like literal planners. However, people without any systematic approach save substantially less. Our results, taken together with evidence from psychology, suggest that financial planning advice based on simple rules of thumb may be helpful for those who currently take no systematic approach.     

人口红利转变、老龄化与提高退休年龄

中国人口生育水平的下降和平均预期寿命的延长,导致原来的人口红利出现了转变的趋势,也造成了老龄化负担的加剧。在这种情况下,实行提高退休年龄的政策具备了某种可能性,因为人口红利的逐渐消失和劳动力供求的逆转可能成为提高退休年龄的推力,而养老金制度的老龄化危机则成为提高退休年龄的拉力。在现实条件下,考虑这一政策对城镇就业的冲击以及劳动力异质性的影响,应该实施渐进缓慢、逐步提高退休年龄的政策。     

当前经济形势下关于延长退休年龄的思考

当前,中国人口老龄化问题越来越突出。适当延长退休年龄,可以缓解人口老龄化,增加劳动力供给,减轻养老保险基金支出。但是,严峻的就业形势却是不争的事实。是否需要延长退休年龄呢？在总结前人研究的基础上认为：2010—2020年将是中国延长退休年龄的良好时机。因而,在理论上和政策上应当为延长退休年龄作相应的准备。     

Employer pay policies, public transfers and the retirement decisions of men and women in Denmark

The empirical retirement literature measures individual responses to variations in income flows due to public transfers, private individual or employer-provided pensions. We estimate a model accounting for the incentive effects from these sources. A dynamic structural model is extended to allow both individual and employer heterogeneity. This is applied to a Danish matched panel of workers and establishments, spanning a period of reforms to a public early retirement programme. Employer-specific compensation is found to be an important determinant of work and retirement income flows. Employer effects on retirement age are only found among sub-samples where access to public transfers is limited.     

An increase in the retirement age in China: the regional economic effects

China’s pension system is in need of comprehensive reform. One measure on which we focus is to increase the retirement age. It is likely that a change in retirement age will have significantly different effects across China’s regions. Interregional disparities are already very substantial in China and it will be important to know how changes in pension arrangements will affect disparities. We consider four policies to increase the retirement age from 60 to 61. They differ according the use made of the extra revenue generated by the policy. All four policies increase welfare and reduce the interregional welfare gap.     

Structural Change in Rural Croatia—Is Early Retirement An Option?

Structural change in agriculture, although often connected with social hardship of uncompetitive small-scale farms and a loss of tradition, is inevitable. It is the basis for successful rural development. We discuss whether early retirement schemes (ERS) are a good value for public money in terms of the necessary adaptations of the farming sector in the course of economic development, and if they are an option for the EU candidate country Croatia. In Croatia, the small scale farm structure leads to widely uncompetitive farms. A study on farmers’ socioeconomic situation as well as actual and expected reactions to policy support is based on results of a household survey. The sample includes farm households from two Croatian regions: The peri-urban Zagreb county and the typically rural region of Bjelovar-Bilogora. Despite unfavourable economic conditions and insufficient farm incomes, rural people are often reluctant to give up farming. We present results on the age structure, income and production structure of farms and farmers’ likely reactions on ERS. We discuss incentives which push farmers to leave the farming sector and ask in which direction farm families plan their future. We conclude with a synthesis of the theoretical advantages and disadvantages of early retirement schemes and link them with possible outcomes in the Croatian case.     

A theory of reverse retirement

The retirement system is usually regarded as giving a fair reward for a long working career. However, only workers who have a sufficiently long life benefit from that reward, but not workers who die prematurely. To re‐examine the fairness of retirement systems under unequal lifetime, this paper compares standard retirement (i.e., individuals work before being retired) with—hypothetical—reverse retirement (i.e., individuals are retired before working). We show that, under standard assumptions, an economy with reverse retirement, once in place, converges towards a unique stationary equilibrium. At the normative level, we show that, when labor productivity declines with age, reverse retirement cannot be optimal under the utilitarian criterion (unlike standard retirement), whereas reverse retirement can be optimal under the ex post egalitarian criterion (giving priority to the worst‐off in realized terms). Finally, we show that there exists a set of policy instruments that allow a government to organize a successful transition from standard to reverse retirement.     

Anchors,endorsements, and preferences: A field experiment

This study investigates how access to political endorsements affects stated preferences for an environmental public good in Switzerland. We developed a contingent valuation survey questionnaire with two valuation questions, the first formulated as a (hypothetical) policy referendum, the second an open-ended WTP question. For the referendum question we solicited endorsements from a range of political parties and relevant interest groups. We then conducted a split-sample mail-survey experiment in which a table listing the endorsements was included with a subsample of the questionnaires. Access to the policy endorsements significantly affected the responses to the open-ended willingness-to-pay question.     

Equilibrium unemployment and retirement

We first propose some new empirical evidence on the fact that the labor market conditions matter for the retirement decision at the individual level: we investigate whether unemployed workers retire before employed workers, other things being equal. Our main objective in this paper is then to propose an equilibrium unemployment approach to retirement decisions that allows us to derive the positive and normative features of retirement decisions when search and matching frictions are considered. Two main conclusions emerge: the retirement decision of unemployed workers depends on the labor-market frictions whereas that of employed workers does not; the existence of search externalities makes the retirement age of unemployed workers intrinsically suboptimal. Considering Social Security policy issues, we show that the complete elimination of the implicit tax on continued activity is not necessarily welfare-optimizing in a second best world where the labor market equilibrium suffers from distortions.