流动性约束和不确定性状态下的预防性储蓄研究-中国城乡居民的消费特征分析

该文利用我国城乡时间序列数据,对城乡居民的消费特征做了新的探索.我们对引入预期收入增长的对数线性欧拉方程和二阶泰勒近似的欧拉方程进行了估计,结果说明,当期收入仍是决定我国居民消费的主要因素,消费的随机游走假说不成立;城镇居民比农村居民有更强的预防性储蓄动机.1990年代中期以来持续走低的收入增长率直接抑制了消费需求的增长,而仍然偏紧的流动性约束和日益增强的不确定性增大了预防性储蓄动机.     

TAXES,INCOME, AND RETIREMENT SAVINGS: DIFFERENCES BY PERMANENT AND TRANSITORY INCOME

This article examines the determinants of and benefits from saving for retirement in tax‐preferred accounts by permanent and transitory income levels. We find that higher incomes (both permanent and transitory) are associated with a greater probability to contribute and larger contributions. We also find that tax benefits for retirement savings increase strongly with income, although the increase is slightly smaller when taxpayers are ranked by their permanent (rather than current) income. In addition, we find that a large portion of the benefits from the Saver's Credit go to taxpayers who would not be eligible based on their permanent income. Finally, we find that recent tax changes (including the introduction of the Saver's Credit) significantly increased contributions among low‐income households, although the effect was centered among those with only transitorily low income. (JEL H24, H31, E21)     

Housing Market and Current Account Imbalances in the International Economy

This paper presents a two‐sector, two‐country model showing that inflation in the housing market, a low personal savings rate, and a construction investment boom can contribute to a large current account deficit. In the model, demand by a group of households in the domestic country is constrained by the availability of collateral. This implies more procyclical debt capacity because constrained households can borrow against the increase in the value of their houses during an expansion. A higher degree of financial liberalization and development helps constrained households reach higher loan‐to‐value ratios, thus relaxing their borrowing constraints. The resulting higher net worth and lower need for savings imply a worsening current account.     

INCOME,CONSUMPTION AND SAVING IN URBAN AND RURAL INDIA*

The main purpose of the study is to determine the savings potential of urban and rural households in India and in the process determine the possible savings and consumption functions separately for urban and rural areas. Four different possible functions have been used for determining the savings behaviour of the households both at the aggregate level and at the per capita level. The rural households, according to the results, have an extremely low rate of saving with income elasticity of saving of less than unity. For the urban households on the other hand, the income elasticity of saving is high enough to suggest the possibilities of considerably high savings potential. To understand the consumption behaviour of these households, the long-run and the short-run marginal propensities to consume and the marginal propensities to consume out of‘permanent’ or ‘normal’ income and ‘transitory’ income have been worked out. For the urban sector none of these give encouraging enough results and the analysis has been extended to examine whether other factors like prices and household assets are of any significance. Whereas for the rural sector, Milton Friedman's theory of ‘permanent’ or ‘normal’ income is somewhat substantiated, other factors like ‘transitory’ income, prices and assets appear to inthence urban consumption behaviour though no single one of them substantially enough. A negligible effect of ‘permanent’ income on urban consumption behaviour is, on the other hand, very clearly suggested by the results. Household consumption and savings have next been projected using the above results to determine the possible levels for the next three years. The results suggest that the rate of domestic savings likely to be achieved by the end of the Third Five Year Plan (1965–66) falls short of the targets laid down.     

PORTFOLIO ALLOCATION IN THE FACE OF A MEANS‐TESTED PUBLIC PENSION

We investigate whether households adjust their asset portfolios just prior to retirement in ways that are consistent with maximizing eligibility for a means‐tested public pension. We utilize detailed micro data for a nationally‐representative sample of Australian households to estimate a system of asset equations which are constrained to add up to net worth. Our results provide little evidence that healthy households or couples are responding to the incentives embedded in the means tests determining pension eligibility by reallocating assets. While there are some differences in asset portfolios associated with having an income near the income threshold, being of pensionable age, and being in poor health, these differences are often only marginally significant and are not clearly consistent with the incentives inherent in the Australian age pension eligibility rules. Any behavioral response to the incentives inherent in the age‐pension means test appears to be predominately concentrated among single pensioners who are in poor health.     

林业重点工程对样本农户收入不平等影响的分解与分析

本文采用15个案例县的1995—2006年3 096个样本数据分析林业重点工程对农民收入不平等及其影响程度的作用机理。研究结果显示:(1)在1995—2006年的12年间,样本农户的收入结构发生了重大变化,林业重点工程补贴收入提高了8.03个百分点;(2)林业重点工程补贴收入对样本农户收入的基尼系数的贡献呈现上升态势,从1995年的0.330 7%上升到2006年的3.794 1%;(3)林业工程收入格局与国家工程区域规划有密切关系,工程政策的影响更为显著。因此,适当调整林业重点工程政策可以更好地实现农村扶贫的目标。     

The Pattern of Household Savings During a Hyperinflation: The Case of Urban China in the Late 1980s

This paper presents evidence on household savings in urban regions of the Chinese provinces Sichuan and Liaoning, based on data from the State Statistical Bureau's Urban Household Survey for the late 1980s. In this period the Chinese economy was subject to extensive reforms that resulted in rapid economic growth followed by extremely high inflation. The high inflation rates gave the households strong motives to switch from financial savings to purchase of consumer durables, which also appear to be consistent with the structure of the observed data. By providing empirical evidence on the relative importance of savings by lower, middle and upper income groups for single-child families and for all households, this study also discusses whether savings decisions depend on the level of household income. Single-child families are focused, not only because of their growing dominance in the current Chinese society, but also to control for the effect of demographic disparities.     

ENDOGENOUS BUSINESS CYCLES: THE INFLUENCE OF CHARACTER TRAITS*

This article deals with how business cycles can occur, in light of character traits which influence individual behaviour in an economy. We assume an overlapping generations model in which every consumer has identical instantaneous utility which is additively separable with respect to time. The parameters of utility here include character traits which influence the choice between consumption and savings. In this situation, young individuals choose between current consumption and current savings which lead to future consumption in their old age. Individual character traits, which appear both in the shape of utility functions and in evaluations about utility in the future, affect these choices. And since these choices determine savings, individual character traits can eventually determine how our economy moves. Focusing on the relationship between individual character traits and savings formation, we demonstrate that endogenous business cycles with two periods can occur, in an economy comprised of individuals who opt for current consumption and who are careless in relation to future events, like Aesopian grasshoppers, and in other cases they do not.     

Do Consumers Learn from Their Own Experiences?

It is natural to think that a household may learn from its own experiences and subsequently increase savings. This paper tests empirically the hypothesis that Japanese households learn from their experiences of large expenditure and increase their targets for precautionary savings after such experiences. The results imply that households raise their targets for precautionary savings by 4–5 percent of annual income in response to such experiences. Moreover, data are consistent with the argument that targets for savings affect actual savings. Assuming this holds, the results in this paper suggest that consumers may increase their actual savings following large expenditure.     

Optimal mixed taxation,credit constraints,and the timing of income tax reporting

We study optimal income and commodity tax policy with credit‐constrained low‐income households. Workers receive an even flow of income during the tax year, but report their incomes and make tax payments (receive transfers) at the end of the year. They spend their disposable income on multiple commodities over the year. We show that differentiated subsidies on commodities can be optimal even if the Atkinson–Stiglitz Theorem conditions apply. When the optimal policy leaves low‐income households with binding credit constraints, it may be optimal to subsidize differentially the good that they consume in higher proportion. Uniform subsidies would also relax the credit constraint, but would be more costly to the government since they would equally benefit unconstrained households. Numerical examples suggest that commodity tax differentiation increases with basic needs and with the interest rate at which government borrows.     

THE DISTRIBUTION OF WEALTH IN URBAN CHINA AND IN CHINA AS A WHOLE IN 1995

The composition, inequality and determinants of wealth among households in urban China in 1995 are studied. In addition, we compare the wealth distribution in urban China with the wealth distribution in rural China and present the first estimates of inequality in the distribution of household wealth in China as a whole. The results show that housing wealth makes up a large part of net worth in urban China. Most urban Chinese households keep a bank account; debts are unusual. A household's net worth is strongly related to its income and location. Net worth is more unequally distributed among urban households than among rural households. However, compared to the situation in most industrialized countries, net worth in urban China and in China as a whole appear to be rather equally distributed.     

EDUCATION AND THE NATIONAL WEALTH OF THE UNITED STATES*

Human capital theory has motivated a great many empirical investigations into the relationship between education and earnings potential. These studies test refinements of the theory, but do not attempt to value education for the economy as a whole. This study develops series which track human wealth and its educational components for the United States from 1946 to 1980. Three related educational time sequences emerge: (1) schooling wealth, the present value of the current and future contributions of the existing schooling stock to national income; (2) net change in schooling wealth, the amount added to present value in that year; and (3) schooling investment, the present value of the future contributions of the new schooling conducted in that year. One important lesson of this exercise is that the last two series can be quite different as a result of the pattern of appreciation and depreciation of human wealth over the lifetimes of individuals. Moreover, education increases the age of peak human wealth and thus should shorten the period during which individuals save for retirement. This phenomenon may induce a demographic cycle in the nation's savings rate, especially evidenced with the aging of the baby-boom cohort. The magnitudes of the human and schooling wealth estimates are large when compared to financial wealth. For a 4 percent rate, the period-wide average for human wealth is five times-and schooling wealth 2.6 times-the Federal Reserve Board's measure of household net worth. These estimates are naturally sensitive to the discount rate chosen, but show that the gap between human and financial wealth has been widening and that the value of schooling provided in any year greatly exceeds its cost. Schooling represents a form of saving whose value is several times the conventional measure of saving.     

THE SIZE DISTRIBUTION OF INCOME DURING INFLATION

This paper analyzes the effects of inflation on the size distribution of income, making use of a microsimulation model. It goes beyond earlier analyses not only in the use of microdata but also in the types of inflation modeled. Two different income concepts are used, one the money income concept of the U.S. Census Bureau and the second, called Accrued Comprehensive Income, based on the concept of income as consumption plus the change in net worth. The results of the simulation inflations are presented graphically, as the ratio of real income with inflation to real income without, by income class. The analysis concludes that the income concept chosen is crucially important. While low income households suffer modest losses and middle income households are largely unaffected, whatever income concept is used, the effects on upper income households are extremely sensitive. With a simple money income concept, the well-to-do appear to benefit from inflation but a broader concept reverses this effect. A policy to negate the distributional effect of inflation would benefit primarily the upper income households. Similarly, macroeconomic policies designed to reduce inflation at the price of slower growth and greater unemployment would not aid lower income groups to a significant degree.     

Nonlinear taxation of income and education in the presence of income-misreporting

We study the joint design of nonlinear income and education taxes when the government pursues redistributive objectives. A key feature of our setup is that the ability type of an agent can affect both the costs and benefits of acquiring education. Market remuneration of agents depends on both their innate ability type and their educational choices. Our focus is on the properties of constrained efficient allocations when educational choices are publicly observable at the individual level, but earned income is subject to misreporting. We find that income-misreporting (IM) affects the optimal distortions on income and education and shed light on the reasons for it and mechanisms through which it is done. We show how and why IM strengthens the case for downward distorting the educational choices of low-ability agents. Finally, we find that IM provides another mechanism that makes commodity taxation useful.     

MACROECONOMIC AND REDISTRIBUTIONAL EFFECTS OF CONSUMPTION TAXES IN THE USA*

This paper studies the effect of an increase in consumption taxes using a dynamic general equilibrium model of overlapping generations calibrated to the US economy. When the proceeds are used to reduce income taxes, the reform raises the aggregate capital and labour supply in the long run. Workers increase labour supply immediately in response to the reform, while consumption rises only gradually. The tax reform also transfers wealth from old consumers to young consumers. As a result, while future generations experience significant welfare gains, current generations, particularly old consumers, tend to experience sizable welfare losses. When the proceeds are used for a lump‐sum transfer, the aggregate capital and labour both decrease in the long run. This reform is welfare‐improving for the current low‐income households.     

SOCIAL ACCOUNTS AND THE DISTRIBUTION OF INCOME: THE MALAYSIAN ECONOMY IN 1970

Although the functional and institutional distributions of income are integrally connected to individual living standards and other development policy objectives, these dimensions are rarely given prominence or even accommodated within standard national accounting frameworks. This paper summarizes research on the estimation of a social accounting matrix (SAM) for Malaysia for 1970 in which the distribution of income between different factors and socio-economic groups is identified. It is the latest of a series of case studies involving some of the authors and is, perhaps, the most detailed of its kind. The study departs from the United Nations SNA guidelines at various points. The SNA basically proposes a commodity balance approach to national income accounting. In giving equal emphasis to income/outlay accounts as to the production accounts, the present study has brought together data from two major primary sources: a household expenditure survey and a production survey. Their combination poses several problems which are discussed in the paper. It leads to an integrated picture, in matrix form, of the interrelationships between income distribution and production structure in the Malaysian economy. Both the factor and household accounts in our SAM are disaggregated according to race and the geographic distinction between Peninsular and East Malaysia, with an urban/rural split within Peninsula Malaysia. The Peninsula labor force is further disaggregated by education level, while its households are then subdivided according to the employment status of main income earners. Arguments for and against these choices are presented. Some other aspects of the study can be noted. First, the distinction drawn between East and Peninsular Malaysia is desirable not only because of the inherent interest of the regions but also because of large differences in data availability and hence in estimation methods. Secondly, to complete our SAM it was necessary to estimate inter-household transfers, being the institutional analogue of inter-industry commodity flow. And finally an attempt has been made to impute the labor component of unincorporated business income. These, then, are the major problems which had to be overcome in our attempt to quantify the generation, distribution, and redistribution of income within Malaysia in a SAM framework.     

CONCEPT AND DEFINITION OF INCOME IN THE NATIONAL ACCOUNTS

It is a truism that the national accounts have engendered their own concept of income which is different from other contexts such as business accounting, taxation or welfare analysis. Less known are the principles on which this income concept is based. This article is an attempt to specify such principles, investigating in particular the role of the transaction principle, and to derive an income concept therefrom. The crucial point of the argument is whether or not it is appropriate within the system of the national accounts to assign an income to sectors other than the households. The theory is applied to some practical questions which have been discussed in the process of the revision of the SNA.     

THE NON-CONSTANCY OF EQUIVALENCE SCALES

Comparisons of households of differing composition are usually achieved through the use of equivalence scales. It is well known that the choice of scales can have considerable impact on the conclusions drawn from studies of welfare and poverty. There is a considerable literature on the theoretical issues relating to equivalence scales, but applied work on income distribution and related areas almost invariably takes scales to be constant irrespective of income. This paper focuses on the relation of scale to income, by applying theoretical analysis to some simple household types. The conclusion is that scales are not constant and that current practice should be changed.     

THE ECONOMIC STATUS OF THE ELDERLY: BEWARE OF THE MEAN*

Current discussion contains widely contradictory statements about the economic status of the elderly in the United States. One can read that poverty among the elderly has been eliminated, and that it remains one of the most serious problems facing the country today. This paper discusses different ways of measuring economic status, and attempts to show how authors can reach such divergent conclusions, and support them with readily available data. The U.S. Census data on personal income generally exclude in-kind benefits, and treat family size in a straightforward though unsophisticated manner. This paper shows that alternative treatments of these issues can have significant effects on indices of the economic status of the elderly. Whether or not in-kind benefits are included in the definition of income, which in-kind benefits are included and how they are valued change the conclusions dramatically. Even more important is whether the income data are presented by household or per capita (or with some intermediate divisor, using equivalency scales), since elderly households are the smallest of any age category. This paper makes 3 points. One is that there has been significant progress in the economic status of the elderly over the past several decades, although the extent of the improvement is subject to debate. But the second is that summary statistics about the elderly, such as the above, may conceal more than they reveal. The diversity of the elderly is key. Beware of the mean. Finally, there is no one correct way to measure well-being. Different methodological approaches can be chosen and justified, and the choices made alter the conclusions significantly.     

经济转型下的中国城镇女性就业、收入及其对家庭收入不平等的影响

本文利用1988、1995和2002年的中国城镇家庭收入调查数据,旨在比较改革的渐进期(1988—1995年)和深化期(1995—2002年),城镇已婚女性的就业和就业收入对家庭收入差距的影响。我们发现在两个时期,已婚女性的就业明显下降,其就业收入都起到了缩小家庭收入差距的作用。在改革渐进期,已婚女性就业收入缩小家庭收入差距的作用不断加强;而在改革深化期这一作用是下降的。和改革渐进期相比,已婚女性就业收入的变化在改革深化期成为了缩小家庭收入差距的重要原因。