中国失业保险制度改革方向:纳入社会救助——基于历史背景与功能定位的分析

失业保险在建立和长期发展过程中,具有缓和劳资矛盾、天然双向平滑经济波动、提供失业保障和平滑个人收入的基本功能。但随着各国劳动保护及福利制度的发展,失业保险在政治和经济方面的功能减弱,且其失业收入损失补偿功能常常引发失业陷阱,于是各国进行了以促进积极就业为导向的改革。中国失业保险制度曾经为经济体制转型起到了“减震器”的作用。随着劳动保护和社会保障制度的发展和政府就业政策的完善,在二元就业结构、户籍制度、公共部门人力资源管理制度及政府承担就业促进任务的影响下,我国失业保险的政治、经济、失业人口收入补偿、就业促进功能未能有效发挥。在比较了若干改革方案后,本文认为,取消失业保险并将其功能并入社会救助体系是新时代背景下我国失业保险制度的最优改革路径。     

The Debt‐Payment‐to‐Income Ratio as an Indicator of Borrowing Constraints: Evidence from Two Household Surveys

Liquidity constraints have been proposed as an important explanation for deviations from the rational expectations/permanent income hypothesis. This paper introduces to the liquidity constraint literature the ratio of a household's debt payments to its disposable personal income, the debt service ratio (DSR). We find that a household with a high DSR is significantly more likely to be turned down for credit than other households. Also, the consumption growth of likely constrained households, identified using the DSR along with the liquid‐asset‐to‐income ratio, is significantly more sensitive to past income than that of other households, confirming the DSR's value in identifying constrained households.     

Heterogeneous Background Risks and Portfolio Choice: Evidence from Micro‐level Data

We construct a set of household‐level background risk variables to capture the covariance structure of three nonfinancial assets and two financial assets. These risks are in general statistically significant and economically important for a household's stock market participation and stockholdings. A one‐standard‐deviation increase in background risks reduces the participation probability by 11% and the stockholdings‐to‐wealth ratio by 4%. The volatilities of labor income, housing value, and business income reduce a household's participation and stockholdings. A household with labor income highly correlated with stock (bond) returns is less (more) likely to invest in stock.     

金融市场参与、风险异质性与家庭幸福

本文研究了金融市场参与对家庭幸福的影响。理论分析显示,金融市场参与通过风险和收益对家庭幸福产生影响。本文运用2015年中国家庭金融调查数据,实证研究了金融市场参与对家庭幸福的影响。为克服内生性,本文选取工具变量,运用极大似然估计发现,家庭参与金融市场会显著提高家庭幸福的可能性。从投资风险的角度进一步研究发现,金融投资的风险异质性对家庭幸福有显著影响:家庭参与低风险金融投资会显著提高家庭幸福,参与高风险金融投资会显著降低家庭幸福。从民间借贷参与中,本文发现家庭参与民间借出款会显著提高家庭幸福的可能性。民间借贷投资风险对家庭幸福的异质性影响也是存在的,高风险借出款对家庭幸福有显著的负向影响。本文为理解家庭金融投资行为与幸福的关系提供了新的证据,可为构建和谐社会提供有益参考。     

Unemployment insurance and incentives

In this paper we present a partial economic equilibrium model of the labor market in which we maximize the workers' expected discounted utility level, while implying a zero expected profit for the firms. The model we use for the labor market takes into consideration transitions between the various states of employment and the time periods spent in each state. The probability distribution of these time periods may be arbitrary, not restricted to being exponential, as is the case for ordinary time-continuous Markov processes. The basic principles and difficulties arising from monitoring problems and moral hazard are discussed. In order to analyze unemployment insurance schemes that include incentives for workers to avoid unemployment, we depart from the simplest form of the principle of equivalence in insurance. Several different alternatives are discussed, all giving rise to partial insurance and thus incentives. We also analyze the effects that early retirement have on unemployment. Here, we include social security benefits in the economic model. Finally, we show that the optimal solutions entail quantity rationing.     

失业保险制度的就业促进效果评估——以内蒙古自治区为例

由于经济发展水平的限制和市场经济体制改革的层次性要求,我国的失业保险制度从建立之初就一直把充分发挥制度的"生活保障"功能作为追求的主要目标,而忽视了失业保险制度的预防失业和就业促进功能。本文以内蒙古自治区为例,运用层次分析法选取了一套较为科学的失业保险制度就业促进效果评估指标,旨在从制度层面分析内蒙古失业保险的就业促进效果。实证研究结果表明,应当建立城镇调查失业率制度、提高失业金替代率、增强就业培训与就业援助的效率、改变参保人群与失业人群错位现象、构建失业保险制度"自动调节机制"、积极探索权力下放和基金投资方式。     

Loss-aversion and household portfolio choice

In this paper we empirically test if loss-aversion affects household participation in equity markets, household allocations to equity, and household allocations between mutual funds and individual stocks. Using household survey data, we obtain direct measures of each surveyed household's loss-aversion coefficient from questions involving hypothetical payoffs. We find that higher loss-aversion is associated with a lower probability of participation. We also find that higher loss-aversion reduces the probability of direct stockholding by significantly more than the probability of owning mutual funds. After controlling for sample selection we do not find a relationship between loss-aversion and portfolio allocations to equity.     

How important is intra-household risk sharing for savings and labor supply?

While it is recognized that the family is a risk-sharing institution, little is known about the quantitative effects of this source of insurance on savings and labor supply. In this paper, we present a model where workers (females and males) are subject to idiosyncratic employment risk and where capital markets are incomplete. A household is formed by a female and a male, who decide on consumption, savings and labor supplies. In a calibrated version of our model we find that intra-household risk sharing has its largest impact among wealth-poor households. While the wealth-rich use mainly savings to smooth consumption across unemployment spells, wealth-poor households rely on spousal labor supply. For instance, for low-wealth households, average hours worked by wives of unemployed husbands are 8% higher than those worked by wives of employed husbands. This response in wives’ hours makes up 9% of lost family income. We also study consumption losses upon an unemployment spell, precautionary savings and the crowding out effects of the public unemployment insurance program on the extent of risk sharing within the household.     

我国股市财富效应对居民消费影响的实证检验——基于生命周期—持久收入理论扩展模型的新视角

基于生命周期-持久收入(LC-PIH)理论,本文建立居民收入、消费支出、股市市值和购房支出几个变量之间的实证检验模型,以研究我国股市的财富效应。选取季度和月度频率数据,测算我国2003~2018年全口径居民消费和2013~2018年乘用车消费的股市财富效应,实证结果发现全口径居民消费主要受收入的影响,股市的财富效应不显著,检验结果符合持久收入说;乘用车消费除受收入的影响之外,股市的财富效应也显著。基于实证结果,并结合发达国家较为普遍存在的财富效应,提出三点建议:一是稳步提高居民可支配收入,是促进我国消费平稳增长、发挥消费拉动经济增长基础性作用的根本;二是要发挥出股市在消费中的财富效应,需改变我国股市长期存在的牛短熊长困境;三是应进一步提高我国居民通过养老金和企业年金等间接渠道参与股市的比重,使养老金、企业年金等长期资金与资本市场形成良性互动。     

Understanding European unemployment with matching and search-island models

To understand European and American unemployment during the last 60 years, we use a search-island model and four matching models with workers who have heterogeneous skills and entitlements to government benefits. When there is higher turbulence, in the sense of worse skill transition probabilities for workers who suffer involuntary layoffs, high government mandated unemployment insurance (UI) and employment protection (EP) in Europe increase unemployment rates and durations. But when there is lower turbulence, high European EP suppresses unemployment rates despite high European UI. Four matching models differ in how they assign unemployed workers to matching functions. That affects how strongly unemployment responds to increases in turbulence. Heterogeneity among unemployed workers highlights the central role of adverse labor market externalities in matching models and reveals that the cost of posting vacancies is the lynchpin of a matching model.     

A theory of the natural unemployment rate and the duration of employment

In this paper, a theory of the natural or equilibrium rate of unemployment is built around a theory of the duration of employment. Evidence is presented that most unemployed workers became unemployed because their previous jobs came to an end; only a minority are on temporary layoff or have just entered the labor force. Thus, high-unemployment labor markets are generally ones where jobs are brief and there is a large flow of newly jobless workers. The model of the duration of employment posits that employment arrangements are the efficient outcome of the balancing of workers' and employers' interests about the length of jobs. Full equilibrium in the labor market also requires that the rate at which unemployed workers find new jobs be efficient. The factors influencing the resulting natural unemployment rate are discussed. Under plausible assumptions, the natural rate is independent of the supply or demand for labor. Only the costs of recruiting, the costs of turnover to employers, the efficiency of matching jobs and workers, and the cost of unemployment to workers are likely to influence the natural rate of unemployment strongly. Since these are probably stable over time, the paper concludes that fluctuations in the natural unemployment rate are unlikely to contribute much to fluctuations in the observed unemployment rate.     

中国失业保险支出水平的测度模型与实证分析

中国失业保险制度应该保持合理的支出水平，衡量标准主要看其是否为失业者提供了适度的收入保障以及是否对就业起到积极的促进作用。本文建立了测量失业保险支出水平的数理模型，根据国外典型国家的经验数据大体确定了失业保险支出水平的适度界限，并对中国现实的失业保险支出水平及其影响因素进行了分析，最后提出了完善失业保险制度以及合理提高失业保险支出水平的政策建议。     

Attitudes Towards Income Risk in the Presence of Quantity Constraints

Considering a consumer with standard preferences, I trace out how quantity constraints on markets impact on relative risk aversion and prudence. I first show how this impact decomposes into a local curvature effect and an endogenously changing risk aversion/prudence effect. Next, I calibrate both effects on relative risk aversion and prudence, using estimates on household demand for durables and labour supply. The calibrations show that commitments to durable goods have large effects on attitudes towards risk. And while small wedges between realised and desired levels of labour supply have only moderate effects, becoming full time unemployed on a 60 per cent unemployment benefit significantly raises risk aversion and prudence.     

Unemployment,Government Spending and the Laffer Effect*

The paper studies the effects of income tax rate changes in a general equilibrium model with frictional unemployment. Laffer curve effects, by which a tax rate reduction may increase the level of government spending or its share in output, are shown to be possible under certain conditions. These are the presence of unemployment benefit payments, government budget balance through fiscal spending adjustment and limited quantitative importance of labour reallocation costs. Endogenous government spending acts as a fiscal accelerator if the fiscal burden of unemployment benefit payments is large, but reduces the employment effects of tax rate cuts if it is low.     

Disability Risk, Disability Benefits, and Equilibrium Unemployment

This paper analyses the labour market and efficiency effects of various kinds of disability policies. It therefore extends Pissarides (1990) model of equilibrium unemployment with disability risk and disability benefits and allows for the improper use of disability schemes by the unemployed. The paper finds that recognition of this improper use can reverse the ranking of policies. In addition, it concludes that disability policies that reduce the participation in disability schemes tend to increase the rate of official unemployment. Only policies that lower the rate of disability shocks succeed to reduce both the participation in disability and unemployment schemes.     

Lost Generations: Long-Term Effects of the COVID-19 Crisis on Job Losers and Labour Market Entrants,and Options for Policy*

This paper discusses the potential long-run effects of large-scale unemployment during the COVID-19 crisis in the labour market on vulnerable job losers and labour market entrants in the United States. The paper begins by contrasting measures of the scale of job loss during the crisis. These measures are paired with estimates from past recessions indicating that the costs of job loss and unemployment can reduce workers’ earnings and raise their mortality for several decades. Focusing only on a subset of vulnerable job losers, the potential lifetime earnings losses from job loss related to the COVID-19 pandemic are predicted to be up to $2 trillion. Related losses in employment could imply a lasting reduction in the overall employment–population ratio. For these workers, losses in potential life years could be up to 24 million. Even at the low range, the resulting estimates are substantially larger than losses in potential life years from deaths directly due to COVID-19. New labour market entrants are at risk to suffer long-term losses in earnings and mortality as well. Based partly on experiences in other countries, the paper discusses potential reforms to short-time compensation programmes and unemployment insurance, which could help limit the short- and long-term harm from layoffs going forward.     

Household Life Cycle Protection: Life Insurance Holdings, Financial Vulnerability, and Portfolio Implications

Using the Survey of Consumer Finances, we examine the life cycle demand for different types of life insurance. Specifically, we test for the consumer's aversion to income volatility resulting from the death of a household's wage‐earner through the purchase of life insurance. We first develop a financial vulnerability index to control for the risk to the household. We then examine the life cycle demand for life insurance using several definitions of life insurance. We find, in contrast to previous research, that there is a relationship between financial vulnerability and the amount of term life or total life insurance purchased. In addition, we find older consumers use less life insurance to protect a certain level of financial vulnerability than younger consumers. Secondly, our study provides evidence that life insurance demand is jointly determined as part of a household's portfolio. Finally, we consider the impact of family members' nonmonetary contribution on the household's life cycle protection decision. Our results provide some evidence that households take into account the value of nonmonetary contribution in their insurance purchase.     

Consumption smoothing and portfolio rebalancing: The effects of adjustment costs

A household's response to income and return shocks depends on the costs of portfolio adjustment. In particular, the extent of portfolio rebalancing and consumption smoothing are influenced by the presence of non-convex portfolio adjustment costs. Suppose bonds can be adjusted costlessly while adjustments to stock accounts entail adjustment costs. Due to these portfolio adjustment costs, the household demands both stocks and bonds. A household can buffer some income fluctuations without incurring adjustment costs and engage in costly portfolio rebalancing less frequently. Using the estimated preference parameters and portfolio adjustment costs, the response to income and return shocks is nonlinear and reflects the interaction of portfolio rebalancing and consumption smoothing.     

人民币汇率波动与收入不平等:影响渠道及应对

本文基于2006—2018年我国28个省份的省级面板数据,探讨了人民币汇率波动对收入不平等产生的影响以及影响渠道。研究结果表明,人民币汇率波动的增加会通过外商直接投资渠道与就业渠道扩大收入不平等。因此,在有序推进人民币汇率市场化、人民币汇率波动逐渐增加的背景下,应稳步推进经济发展与扩大就业,促进外汇市场的发展与完善,加强劳动力市场的建设,完善失业人员培训保障机制,不断提升经济开放程度及教育水平,以避免人民币汇率波动对收入不平等的负面影响。