中国代际核算体系的建立和对养老保险制度改革的研究

代际核算方法是 2 0世纪 90年代出现的分析财政问题和代际平衡问题的新方法。本文建立了中国的第一套代际核算体系 ,并利用代际核算体系分析了中国的养老保险体系。考虑到中国的实际情况 ,本文对传统的代际核算体系进行了以下扩展 :首先 ,传统的代际核算体系将人口按照年龄和性别分类 ,而我国无论是税收体系还是养老保险体系 ,城乡差别都比较大 ,因此我们将人口按照年龄、性别和城乡三个维度分开 ;第二 ,由于我国的社会保障体系不是全民覆盖 ,因此我们在考虑社会保障体系的缴费和支付时 ,需要考虑覆盖面的变化。核算结果表明我国城乡不平衡很严重 ,城镇人口到 55岁 (其中女性到 50岁 )时代际帐户就为负值 ,而农村人口要到 85岁 (其中女性到 90岁 )代际帐户才为负值。我国的代际不平衡也较为严重 ,按照不同的生产率增长率和贴现率的假设 ,我国未来代的代际帐户值比 2 0 0 2年新出生一代高 66%到 1 0 2 %。而如果我们采用延长退休年龄的政策 ,代际不平衡情况可以得到很大改善 ,未来代的代际帐户值比 2 0 0 2年新生代高 43 %到 81 %。而如果不对机关事业单位的养老保险制度进行改革 ,代际不平衡状况将更加严重 ,未来代的代际帐户值比现存各代高出 78%到 1 1 5%。     

SOME INEFFICIENCY IMPLICATIONS OF GENERATIONAL POLITICS AND EXCHANGE*

This paper explores the implications of generational selfishness in a model in which each generation has its own government. Such selfish generational governments will potentially distort the economy along a number of dimensions. One is the monopolization of factor supplies; another is the under- or overprovision of durable public goods. We demonstrate that selfish generations may place sizable marginal taxes on their factor supplies in order to monopolize their factor markets. We also show that selfish generations will provide inefficient levels of durable public goods both at the local and national levels. Finally, we demonstrate that generational inefficiencies can arise even in models of cooperative bargaining because of the first-mover advantage of earlier generations.     

Intergenerational consequences of gradual pension reforms

Balancing the government budget in an aging economy may require adjusting gradually pension benefits. Such policy change can take two forms: adjusting the accrual rate (the rate at which individuals built-up pension entitlements while working) or the indexation rate (the rate a which accrued entitlements are linked to nominal wage growth). We compare the consequences of such gradual policies across cohorts. We identify a fundamental generational trade-off between democracy and equality. In particular, we show that for Belgium, 80% of the population alive at the time of the reform prefers the accrual to the indexation reform, with the implication that the youngest half of the population would bear 85% of the total adjustment cost. The indexation reform provides more generational equality because the phasing in over time has larger base and thus benefit cut can be smaller per capita. We then consider other reforms improving the generational equality, showing that all those reforms fail to gain majority support. Finally, considering labor incentives, we show that the indexation reform is also more efficient than the accrual reform. Efficiency meets generational equality.     

Pollution and life expectancy: How environmental policy can promote growth

This article investigates the influence of environmental policy (EP) on growth in an AK-type growth model, when finite lifetime is introduced and the link between pollution and life expectancy (through the detrimental impact of pollution on health) is taken into account.Using an overlapping generations model à la Blanchard [Blanchard, O. (1985). Debt, deficits and finite horizon. Journal of Political Economy, 93:223-247], we demonstrate that finite lifetime introduces a “generational turnover effect” which modifies the influence of the EP on growth. Thus, when lifetime is finite and independent from pollution, we show that the “generational turnover effect” limits the detrimental impact of the EP on growth, if agents smooth their consumption over time. When pollution negatively influences life expectancy through health, we demonstrate that the “generational turnover effect” is magnified and that the EP and growth have an inverted U-shaped relationship in the steady-state. In this case, we show that the environmental policy is more likely to promote growth (i.e. it stimulates growth for a wider range of environmental taxes) when the impact of pollution on health is important and/or public expenditures in health are low. Finally, using numerical simulations, we find that for the value of parameters that we have chosen, the EP will be more likely to promote growth when agents smooth consumption over time.     

THE SELECTION OF POLICIES FOR BALLOT INITIATIVES: WHAT VOTERS CAN LEARN FROM LEGISLATIVE INACTION

This paper models the process through which proposals are placed on the ballot as initiatives. Importantly, proposals that reach the ballot were not enacted by the legislature. We show that this fact has important consequences for the type of policy proposals that reach the ballot: as the legislature would enact any proposal that increases everyone's utility (in expectation), proposals that reach the ballot must be bad for some segment of the population. We partition the population into voters who would benefit from a group's proposal and those who would not and show that voters can use the legislature's inaction to obtain a better estimate of the initiative's expected value. In particular, we show that voters that are not in the sponsoring group infer that proposals that become initiatives have negative expected value and that the expected value of an initiative is decreasing in the size of the group that sponsors it.     

Is the Green Solow Model Valid for $$\hbox {CO}_{2}$$ Emissions in the European Union?

This paper addresses the \(\hbox {CO}_{2}\) emission patterns of the European Union from 1950 to 2010, and examines the validity of the Green Solow model, which simulates \(\hbox {CO}_{2}\) emissions growth by including only Solow forces and assuming emission intensity growth to be exogenous and constant. This study verifies that an environmental Kuznets curve (EKC) trajectory exists for per capita \(\hbox {CO}_{2}\) emissions in the European Union, that emission intensity growth is decreasing over time, and that the decreasing intensity growth reflects variations of the dependent variable in the specifications of the Green Solow model. The critique by Stefanski (On the mechanics of the Green Solow model. OxCarre Research Paper 47, OxCarre & Laval University, Oxford, 2013) of the Green Solow model assumption of exogenous and constant intensity growth is validated. The EKC is defined as the emissions plotted against income and emission intensity is defined as the ratio of emissions to income. The EKC and emission intensity share identical definitions and similar transition trajectories over time. The transition of the EKC trajectory and decline in emission intensity growth began before worldwide attention was focused on global warming.     

Mapping technological development using patent citation trees: an analysis of bogie technology

We create a generational patent citation tree to reveal the development of bogie technology in the high-speed rail industry. We cull the information in patent citations to reveal the generational development of bogie technology by analysing patent titles, patent publication dates and patent-granting regions. We then measure the development of bogie technology by calculating its technological development on-orbit rate and by mapping the stages of technological development and its regional diffusion. The results show that bogie technologies are in a period of sustained growth and this period of sustained growth will remain. Technological development is accelerating and this acceleration will persist, although the global dispersion of technology lags behind in scope and speed.     

Generational accounts for Belgium: fiscal sustainability at a glance

This paper uses generational accounts to analyse the long term sustainability of Belgian public finances. We derive age-profiles of detailed tax and expenditure categories from micro data and microsimulation models, and plug them into a long run demographic projection. We assess fiscal long term sustainability under current fiscal and budgetary policy for the base year 2010, and perform simulations of counterfactuals to determine the relative contribution of the most important factors of the long run unsustainability. This update of the generational accounts for Belgium shows that, not unexpectedly, the budgetary situation in Belgium violates the intertemporal budget constraint and hence is unsustainable in the long run. The current level of explicit debt, however, only plays a minor role in explaining this sustainability problem. Ageing and the related increase in age related expenditures are the main drivers of the long run fiscal imbalance and the high level of implicit debt. We disentangle the Belgian generational accounts into their regional components and show that the major explanation for regional differences in generational accounts is not divergent demographic projections, but the wide differences in socio-economic situations, as revealed by the region specific age-profiles.     

What can we Learn from Generational Accounts for the United Kingdom?

This paper considers the relevance of a set of generational accounts in informing policy debate in the UK. With regard to transparency, Generational Accounts can, under sensible assumptions, provide a useful summary statistic to supplement our analysis of government policy. Interpreting differences in the accounts across groups as measures of the incidence or redistributiveness of existing or proposed policies is more problematic. With respect to UK pension reform, within-cohort differences raise important issues. Finally we argue that past pension reforms have been characterised by inaccurate forecasts as opposed to a lack of understanding of the generational incidence of proposed policy.     

GENERATIONAL ACCOUNTING—AN AUSTRALIAN PERSPECTIVE

This paper presents a set of generational for Australia, following the approach developed in the U. S. by Auerbach, Gokhale and Kotlikoff. In Contrast to the Auerbach et al. , results for the U. S., the generational accounts presented here do not imply that a disproportionately high fiscal burden will have to be borne by future generations in Australia. In the paper, generational accounts are used to estimate intergenerational redistribution related to policy changes in the area of public retirement pensions.     

Generational Accounting in the UK

This paper presents the first set of generational accounts for the United Kingdom. We find that under our baseline scenario, in which pensions are price indexed and health expenditure grows modestly, the imbalance in UK generational policy is small when compared with other leading industrial countries like the United States, Japan, and Germany. However, under an alternative policy scenario, where all social benefits are wage-indexed and health care spending is increased, there is a larger fiscal bill left for future generations to pay. In this case, achieving generational balance would require much stronger medicine.     

中国城镇养老保险制度改革的收入分配效应

在公共养老保险制度下,可以通过调整养老保险的缴费率或养老金计发办法来影响参保人一生中的养老金纯受益,从而实现代际间和代际内的收入再分配。本文利用中国国家统计局2002年的城市住户调查数据,分别估计城镇参保职工在1997年养老保险制度和2005年最新养老保险制度下的终生养老金纯受益,并以此从代际间和代际内的角度对中国养老保险制度改革的收入分配效应进行定量分析。分析表明:在1997年的改革方案下改革前的养老保险制度中存在的逆向收入转移效果得到改善;但在2005年改革方案下,2002年时40岁以上的群体中存在较明显的逆向收入转移倾向。另一方面,从代际分配来看,1997年改革方案的代际不平衡大于2005年改革方案;在2005年改革方案下各代人的养老金纯受益都有所提高,但这是以养老保险制度的缴费率和养老金计发办法不变,养老财政收支能维持平衡以及参保人在整个工作期间按规定缴费为前提的。     

养老保险与公共财政领域的代际负担——四种测量模型简

以现收现付为例介绍“政府总财政平衡”、“养老金负债净额”、“代际核算”、“隐性税收”四种模型的基本内涵,以及测量人口老龄化对养老保险体系或财政体系收支平衡的影响,认为社会养老保险必然出现代际不公平,人口老龄化对代际负担的影响测量复杂,代际公平应成为研究人口老龄化影响、评价养老保险长期发展的关键。     

Intergenerational policy and the measurement of tax incidence

We evaluate the ability of generational accounting to assess the potential welfare implications of policy reforms. In an intergenerational context policy reforms usually have redistributive, efficiency, and general equilibrium implications. Our analysis shows that when the policy reform implies changes in economic efficiency, generational accounts can be misleading not only about the magnitude of welfare changes, but also about the identity of who wins and who losses. In contrast, the generational accounts correctly identify welfare changes when the policy reform has only a pure intergenerational redistribution component. We illustrate and quantify this issue in the context of widely considered policy reforms (substitution of consumption for labor taxation, and the increase of retirement age) and in a more general context of optimal policy.     

An Incentive Contract With Asymmetric Information

This Paper considers the problem of designing an optimal incentive contract between a retailer and a manufacturer when the former has private information about demand and its own cost. Based on a multi-period framework, we show that the incentive franchise contract can bring about the fist-best outcome of vertical integration when the retailer has complete information about consumers' preferences. [L42, D8]     

家族企业代际传承影响企业经营绩效的路径*——基于跨代转型创业与继承人社会资本的视角

本文研究了家族企业代际传承对企业经营绩效的影响路径。基于2004—2015年间已完成代际传承的中国上市家族企业，本文从跨代转型创业视角考察代际传承对企业经营绩效的影响路径，并考察继承人社会资本的调节作用。研究发现：代际传承会导致企业经营绩效下降，跨代转型创业在上述过程中发挥中介作用。同时，继承人的社会资本会加强上述消极影响。跨代转型创业对企业经营绩效的消极影响会逐年减弱，且继承人的社会资本对此消极影响有削弱作用。     

Consumption,Income, and Wealth: Evidence from Age,Cohort, and Period Elasticities

This paper examines the relationship between non‐durable consumption, income, and wealth (housing and financial) allowing explicitly for generational heterogeneity. A framework is proposed to disentangle cohort, age, and period effects and the empirical analysis is based on the U.S. Consumer Expenditure Survey data. We find that there are significant generational differences and the results highlight the range of elasticities implicit in results presented, thus far, by age groups. Moreover, we find supporting evidence of humped shaped age profiles for the elasticity of consumption with respect to income and the importance of financial wealth for those aged 60+. The framework also allows us to generate cohort profiles which draw attention to the negative role of housing wealth for generation X, and period profiles which reinforce the role of financial wealth for the baby‐boom generation.     

养老保险个人账户调整对我国财政体系代际平衡状况的影响

养老保险体系对财政政策的代际平衡状况有重要影响,我国养老保险个人账户规模缩小至8%可以使代际不平衡状况下降10个百分点,而降低养老基金保值率对改善代际不平衡状况的作用有限。因此我们在缩小个人账户规模后,应该考虑尽快将个人账户“做实”,通过提高养老基金保值率来激励单位和个人参加养老保险。     

Efficient bidding with externalities

We implement a family of efficient proposals to share benefits generated in environments with externalities. These proposals extend the Shapley value to games with externalities and are parametrized through the method by which the externalities are averaged. We construct two slightly different mechanisms: one for environments with negative externalities and the other for positive externalities. We show that the subgame perfect equilibrium outcomes of these mechanisms coincide with the sharing proposals.     

Meaningful Measures of the Current Account

Since the conventional current account uses cash-flow accounting, it is potentially devoid of economic meaning. Assessing foreign assets at market values and including expected transfers from abroad, this paper reports two measures of the external surplus that are grounded in economic theory. The first measure is the aggregate generational current account, annual differences in the sum of net foreign assets across all current and future generations. The second measure is the generational profile of net foreign assets in a benchmark year. These ideas are implemented with data from Korea.