城市居民住房承受能力测度研究——剩余收入视角

借鉴扩展线性支出系统模型确定家庭食品、衣着、家庭设备用品及服务等非住房基本消费支出的基础上,运用剩余收入法测度了2003—2008年武汉市七种不同类型家庭的住房承受能力。剩余收入法测度结果能反映出不同类型家庭住房承受能力的具体差距,显示出武汉市中等偏下收入及以下收入家庭面临住房承受能力问题,并且收入越低住房承受能力问题越突出,结果比传统比率法更具有说服力。而比率法测度显示中等偏上户及以下家庭面临住房承受能力问题,扩大了存在住房承受能力问题的家庭范围。运用剩余收入法可以定量地测度各类家庭住房承受能力的大小和绝对差距,有助于确定城市中低收入家庭住房补贴的对象及标准,制定我国公共住房销售、租赁政府指导价格,促进完善住房保障政策。     

Consumption smoothing in Russia

This paper uses panel data from rounds V–IX of the Russian Longitudinal Monitoring Survey (RLMS) to examine the extent to which households are able to protect their consumption from fluctuations in their income. It is found that consumption is only partially protected from idiosyncratic shocks to income with food consumption being better protected than non‐food consumption expenditures. This suggests that adjustments in non‐food expenditures may be an important component of the risk management tools of Russian households. The analysis also provides evidence on the extent and nature of the coping strategies adopted by households. It is demonstrated that households complement their self‐insurance strategies, of borrowing, adjusting their labour supply, and selling assets, with informal risk sharing arrangements with households within their community. An examination of the role of sample selection confirmed that these findings are quite robust to this potential source of bias. Furthermore, accounting for the role of measurement and imputation errors in the measure of household income revealed that OLS estimates may yield a misleading picture about the extent to which urban and rural households are insured from idiosyncratic income shocks. JEL classification: D1, R2, P5.     

The role of education and household composition for transitory and permanent income inequality–evidence from PSID data

Transitory and permanent shocks to income have been shown to be important determinants of household consumption. This paper shows that there are significant differences in the trends of transitory and permanent income inequality between demographic groups since the 1980s. Using data from the Panel Study of Income Dynamics, educational attainment and the composition of a household are found to play a key role. While permanent inequality increases steadily for educated households, it is flat over large parts of the sample period for the less educated households. Transitory inequality increases for all households headed by couples whereas it is constant for single households. Altogether, permanent shocks account for a larger part of the income variance of educated households whereas transitory shocks are relatively more important for the less educated. These results are able to shed light on the transmission of changes in income inequality to consumption inequality.     

Caste, Inequality, and Poverty in India

This paper analyses inequality and poverty in India within the context of caste‐based discrimination. It does so by decomposing the difference between (caste) Hindu and Scheduled Caste (SC) and Scheduled Tribe (ST) households in: their average household incomes; their probabilities of being in different income percentiles; their probabilities of being at different levels of poverty into: a “discrimination effect”, which stems from the fact that a household's income level, into which its (income‐generating) profile translates, depends on whether it is SC/ST; an “attributes (or residual) effect” which stems from the fact that there are systematic differences between SC/ST and Hindu households in their (income‐generating) profiles. The results, based on unit record data for 28,922 households, showed that at least one‐third of the average income/probability differences between Hindu and SC/ST households was due to the “unequal treatment” of the latter.     

中国城镇居民的财产分配

本文利用住户调查数据对 1 995年的中国城镇住户的财产分配状况进行了经验分析 ,包括对财产分配的差距进行了测量 ,影响财产分配的主要因素进行了估计 ,并将中国城镇住户的财产分配进行了国际比较。与大部分市场经济国家相比 ,中国城镇居民之间财产分配的差距并不大。但是中国城镇居民的财产分配差距超过了收入分配差距 ,而且从长期趋势上可能会出现加速扩大的势头。中国城镇居民之间财产分配的不均等并非全是经济市场化过程的结果。一些不均等的原因来自于传统计划经济遗留下来的分配模式。本文还发现 ,在户主一生中财产积累出现了两个高峰值。这是与正统的生命周期理论不同的。本文还表明了财产分配和收入分配之间的较强相关性。     

Does urbanization reduce rural poverty? Evidence from Vietnam

This paper uses data from household surveys to contribute to the urbanization-poverty nexus literature by assessing the effect of urbanization on income, expenditure, and poverty in rural households in Vietnam. We find that the urbanization process stimulates the transition from farm to non-farm activities in rural areas. More specifically, urbanization tends to reduce farm income and increase wages and non-farm income in rural households. This suggests that total income and consumption expenditure of rural households are more likely to increase with urbanization. Finally, we find also that urbanization helps decrease the expenditure poverty rate of rural households, albeit by a small magnitude.     

The economic relevance of sustainable agroforestry practices — An empirical analysis from Tanzania

This paper investigates the economic relevance of sustainable behavior of agroforestry practices for smallholders using the example of firewood exploitation in rural Tanzania. Three questions are addressed: (1) To what extent do households behave sustainably regarding firewood extraction from agroforestry? (2) Which factors determine the likelihood of households practicing sustainable agroforestry? (3) Are sustainably behaving households better off in terms of income compared to households practicing unsustainable agroforestry? The analysis is based on cross-sectional data of 314 households. A sustainability indicator shows that the share of sustainable households varies between 14 and 41% depending on the underlying wood growth rate. The results of the logistic regression indicate that property rights regarding the ownership of agricultural land and environmental awareness increase the likelihood of sustainable firewood extraction. Empirical evidence from the quantile regression reveals that poorest households generate higher income if they extract firewood unsustainably. The opposite is true for households of upper income percentiles. Thus, the poor are likely to increase environmental degradation to generate more income causing a ‘downward spiral’ of the poverty–environment trap resulting in income losses in the long run. Households with a per capita income of 524 TZS or more manage their tree stocks sustainably.     

The economic importance of non-timber forest products (NTFPs) for livelihood maintenance of rural west African communities: A case study from northern Benin

Non-timber forest products (NTFPs) contribute significantly to a rural household's livelihood in the African semi-arid tropics. This study examines the income from NTFPs and the dependency on these of different socio-economic groups in Northern Benin. Using survey data from 230 households of two villages, we firstly compared incomes of five different ethnic groups being differentiated by their traditional source of livelihood and regional provenance. Secondly, we investigated disparities between three income groups. On average, income from NTFPs accounted for 39% of total household income and had a strong equalizing effect on it. However, the economic relevance of NTFPs differs between households: Poorer households are relatively more dependent on NTFPs in order to fulfill basic needs than wealthier households. However, the latter extract more NTFPs in quantitative terms and have significantly higher cash returns than poorer ones. This is mainly due to a significant greater land holding. Moreover, our study revealed that net income from NTFPs reflects traditional sources of livelihoods of different ethnic groups. In conclusion, both conservation and development strategies should take into consideration the socio-economic context of different beneficiaries of savanna woodland resources in order to apply appropriate measures to poverty reduction.     

Gender roles,labour market participation and household income position

In empirical research on labour supply behaviour, variables like age, education or the household's financial situation as well as economic and demographic characteristics, social attitudes and gender role schemes are believed to influence the annual working hours. This paper starts from the assumption that these determinants work differently according to the poverty level of the household in which the individual lives. Using data from the German Socio-Economic Panel (GSOEP), the paper empirically tests this hypothesis for women and men living in households with a disposable income above the poverty line and of those living in poor households. The results of multiple regression analysis show traditional gender role patterns in labour supply decisions, but only for persons in households with an income above the poverty line.     

Do farmers choose to be inefficient? Evidence from Bicol

Farming households that differ in their ability or willingness to take on risks are likely to allocate resources and effort among income producing activities differently with consequences for productivity. In this paper we measure voluntary and involuntary departures from efficiency for rice producing households in the Bicol region of the Philippines. We take advantage of a panel of observations on households from 1978, 1983 and 1994. Available monthly weather data and survey information on planting times allows us to create household specific measures of weather shocks, which we use in our analysis. We find evidence that diversification and input choices do affect efficiency outcomes among farmers, although these effects are not dominant; accumulated wealth, past decisions to invest, favorable market conditions, and propitious weather are also important determinants of efficiency outcomes among Bicol rice farmers. Our findings suggest that the costs of incomplete formal and informal insurance markets are higher for poorer farmers.     

中国居民消费需求不足原因研究——基于中国城乡分省数据

This paper uses Chinese urban and rural panel data for 30 provinces, autonomous regions and municipalities (except Tibet and Taiwan) on the consumption of Chinese urban and rural households in 1995–2005, by constructiong a random effect model, to analyze the impact of sources of household’s consumption demand on the Chinese economy. The quantitative analysis reveals that the per capita disposable income of households is highly relevant in explaining households’ per capita consumption expenditure, in these eleven years, and that China’s consumption function was fairly stable. On the basis of flow of funds accounts (barter transaction) data in 1992–2004, the paper further reveals that, since 1997–1998, China’s consumer demand remains in the doldrums because of the following distribution and redistribution process of the national income: The Government’s share of total income and disposable income is becoming ever larger, while the share of households is declining. Aside from the result that a rise in the burden of personal tuition has a negative impact on per capita consumption demand for urban households, we have not found that housing reform or medical expenses significantly reduce consumer demand in China. We believe that low household consumption demand is caused mainly by the income redistribution between households, government, and corporations rather than the inequality in income distribution across households.     

Do the Rich Save More? Evidence from Canada

This paper provides new evidence on the long‐standing question of whether more affluent households save a larger fraction of their income. The major difficulty in empirically assessing the relationship between incomes and saving rates is to construct a credible proxy for long‐run income—purged of transitory fluctuations and measurement error. The Canadian Family Expenditure Survey provides us with both unusually good data on savings rates and potential predictors with which we can construct reliable long‐run income proxies. Our empirical analysis suggests that the estimated relationship between saving rates and long‐run incomes is sensitive to the predictor used to proxy long‐run income. Nevertheless, our preferred estimates indicate that, except for poorest households (who simply do not save), saving rates do not differ substantially across predicted long‐run income groups.     

Determinants of food consumption in rural Sierra Leone: Application of the quadratic expenditure system to the consumption-leisure component of a household-firm model

This paper reports the application of a quadratic expenditure system with demographic variables to the household consumption-leisure choice component of a household-firm model. A system of seven commodities is estimated: including five foods, non-food and leisure. Appropriate for such a level of disaggregation a demand system is used, the Quadratic Expenditure System, which allows for a flexible relationship between full income and commodity expenditures without sacrificing parsimony in parameters. Demographic data on households are explicitly incorporated into the model allowing for a richer specification than can be achieved by using per capita variables. The data are from a cross-section survey of households in rural Sierra Leone. Price variation exists by region, permitting estimation of a complete demand system. Engel curves are found to be significantly non-linear, with marginal expenditure on rice, the major staple, declining with higher income. Most foods are found to be reasonably price responsive with sizeable own price substitution effects, declining with higher income. Aggregate labor supply is found to be price inelastic.     

Income segregation and local progressive taxation: Empirical evidence from Switzerland

This study investigates spatial income segregation in fiscally decentralized urban areas. The theoretical part proposes the progressivity of local income taxes as a new theoretical explanation for income segregation. The empirical part studies how income tax differentials across municipalities affect the households' location decisions. I use data from the Swiss metropolitan area of Basel that contains tax information on all moving households in 1997. The location choice of the households is investigated within the framework of the random utility maximization model. Different econometric specifications of the error term structure, such as conditional logit, nested logit and multinomial probit, are compared. The empirical results show that rich households are significantly and substantially more likely to move to low-tax municipalities than poor households. This result holds after controlling for alternative explanations of segregation. Social interactions and distance from the central business district are established as other major factors for income segregation. Households in general tend to choose locations close to other households like themselves.     

Public inputs and child schooling in Brazil

Household data from a one percent sample of the 1970 Brazilian census are used to analyze the effect of public inputs, i.e., the ‘supply’ of schooling, on children's school attainment in Brazil. The household data are combined with measures of school availability and quality derived directly from the same census data; the measures are based on the income and education of schoolteachers in each of 169 different areas of the country. Elasticities of demand with respect to these public inputs are estimated; these elasticities are high in both rural and urban areas. In urban areas, the positive effect of public inputs is greater for children from households with poorer and less-educated parents. In rural areas, the positive effect of public inputs is greater, if anything, for children from households that are relatively better off, at least compared to other rural households.     

Migration and urban poverty and inequality in China

Using data from recent surveys of migrants and local residents in ten cities in 2005, this paper examines how migration influences measurements of urban poverty and inequality in China, and also compares how other indicators of well-being differ for migrants and local residents. Contrary to previous studies that report that the income poverty rate of migrant households is 1.5 times that of local resident households, we find relatively small differences in the poverty rates of migrants and local residents. Although the hourly wages of migrants are much lower than those of local residents, migrant workers work longer hours and have lower dependency ratios and higher labor force participation rates. Including migrants increases somewhat measures of urban income inequality. Significant differences between migrants and local residents are found for non-income welfare indicators such as housing conditions and access to social insurance programs.     

What explains consumption in the very short-run? Evidence from checking account data

This paper investigates consumption behavior within an intertemporal optimization model of the representative household. Our dataset consists of deposits and withdrawals from individual household checking accounts that received paychecks by direct deposit. We construct samples of panel data for households with weekly, biweekly, and semi-monthly pay-periods and form two different measures of consumption for each sample. GMM estimates of structural parameters provide mixed evidence for habit formation or durability and limited support for the permanent income hypothesis. The results instead point to “rule of thumb” consumption under liquidity constraints, where the household consumes its current disposable income each pay-period with possible debt servicing. These findings are uniform with regard to estimation of sub-samples split according to age or household income.     

Estimation of Concentration Measures and Their Standard Errors for Income Distributions in Poland

Measures of concentration (inequality) are often used in the analysis of income and wage size distributions. Among, them the Gini and Zenga coefficients are of greatest importance. It is well known that income inequality in Poland increased significantly in the period of transformation from a centrally planned economy to a market economy. High income inequality can be a source of serious problems, such as increasing poverty, social stratification, and polarization. Therefore, it seems especially important to present reliable estimates of income inequality measures for a population of households in Poland in different divisions. In this paper, some estimation methods for Gini and Zenga concentration measures are presented together with their application to the analysis of income distributions in Poland by socio-economic groups. The basis for the calculations was individual data coming from the Polish Household Budget Survey conducted by the Central Statistical Office. The standard errors of Gini and Zenga coefficients were estimated by means of the bootstrap and the parametric approach based on the Dagum model.     

The surprisingly low importance of income uncertainty for precaution

While it is common to use income uncertainty to explain household saving decisions, there is much disagreement about the importance of precautionary saving. This paper suggests that income uncertainty is not an important motive for saving, although households do have other precautionary reasons to save. Using a question from the Survey of Consumer Finances that asks how much households want for precautionary purposes, this paper shows that expressed household preferences, and liquid savings, are much lower than predicted by standard modeling assumptions. Households rarely list unemployment as a reason to save. Perceived income uncertainty does not affect liquid savings or precautionary preferences. Neither does being in an occupation with higher income volatility. Instead, households seem very concerned with expenditure shocks.     

Air conditioning and electricity expenditure: The role of climate in temperate countries

This paper investigates how households adopt and use air conditioning to adapt to climate change and increasingly high temperatures, which pose a threat to the health of vulnerable populations. The analysis examines conditions in eight temperate, industrialized countries (Australia, Canada, France, Japan, the Netherlands, Spain, Sweden, and Switzerland). The identification strategy exploits cross-country and cross-household variations by matching geocoded households with climate data. Our findings suggest that households respond to excess heat by purchasing and using air conditioners, leading to increased electricity consumption. Households on average spend 35%–42% more on electricity when they adopt air conditioning. Through an illustrative analysis, we show that climate change and the growing demand for air conditioning are likely to exacerbate energy poverty. The number of energy poor who spend a high share of income on electricity increases, and households in the lowest income quantile are the most negatively affected.