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Abstract. Based on data from the German Socio-Economic Panel (GSOEP), this paper analyzes the dynamics of equivalent income in East and West Germany in the years following reunification. Special emphasis is given to the separation of permanent and transitory components, the persistence of transitory shocks and their implications for the persistence of poverty and inequality. The results suggest that in West Germany, between 52 and 69 per cent of cross-sectional income inequality was permanent, and that poor individuals stayed in poverty for two years on average. In East Germany, the share of the permanent component in overall income inequality rose continuously from 20 per cent in 1990 to 72 per cent in 1998, reaching a level near the one that prevailed in West Germany during the same period. The rising importance of time-invariant components in East German incomes was also reflected in expected poverty durations which slightly increased from 1.47 years in 1990 to 1.67 years in 1998.  相似文献   

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This paper evaluates the household food security situation in Kenya in terms of access to food. We apply a quadratic almost ideal demand system (QUAIDS) model to nationally representative household survey data from Kenya, and estimate and interpret price and expenditure elasticities as indicators of household sensitivity to market shocks. Our estimation results show positive expenditure elasticities, close to unity, while all compensated and uncompensated own-price elasticities are negative and smaller in magnitude. A complementary welfare analysis shows high compensated variations in the long run, ranging between 34% and 131% across food groups. This suggests that rising relative food costs have led to deterioration of the food security situation in Kenya, and the most severely affected households seem to be those that rely on informal markets and reside in rural areas. To improve food security, targeted income support could be a more effective policy than price support, given the much higher estimated expenditure elasticities.  相似文献   

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This paper reviews some of the econometrics problems faced when estimating a rational addiction model of Becker and Murphy using panel data. This is illustrated with three empirical applications. The first application looks at cigarette consumption using macro panel data on American states over time. The second application looks at liquor consumption using macro panel data on American states over time. The third application uses micro-panel data on Russian alcohol consumption.  相似文献   

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We employ covariance structure models to decompose the cross-sectional variance of male wages in Germany into its permanent and transitory parts. We find that the steep growth of cross-sectional inequality during the early 2000s is predominantly driven by transitory factors.  相似文献   

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Abstract This paper attempts to provide a synthetic view of varied techniques available for performing inference on income distributions. Two main approaches can be distinguished: one in which the object of interest is some index of income inequality or poverty, the other based on notions of stochastic dominance. From the statistical point of view, many techniques are common to both approaches, although of course some are specific to one of them. I assume throughout that inference about population quantities is to be based on a sample or samples, and, formally, all randomness is due to that of the sampling process. Inference can be either asymptotic or bootstrap based. In principle, the bootstrap is an ideal tool, since in this paper I ignore issues of complex sampling schemes and suppose that observations are IID. However, both bootstrap inference and, to a considerably greater extent, asymptotic inference can fall foul of difficulties associated with the heavy right‐hand tails observed with many income distributions. I mention some recent attempts to circumvent these difficulties.  相似文献   

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Work and life satisfaction depend on a number of pecuniary and non-pecuniary factors at the workplace and determine these in turn. We analyze these causal linkages using a structural vector autoregression approach for a German sample of the working populace from 1984 to 2008, finding that workplace autonomy plays an important causal role in determining well-being.  相似文献   

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Out‐of‐pocket health expenditures in Australia are high in international comparisons and have been growing at a faster rate than most other health costs in recent years. This raises concerns about the extent to which out‐of‐pocket costs have constrained access to health services for low income households. Using data from the ABS Household Expenditure Survey 2003–2004, we model the relationships between health expenditure shares and equivalised total expenditure for categories of out‐of‐pocket health expenditures and analyse the extent of protection given by concession cards. To allow for flexibility in the relationship we adopt Yatchew's semi‐parametric estimation technique. This is the first detailed distributional analysis of household health expenditures in Australia. We find mixed evidence for the protection health concession cards give against high out‐of‐pocket health expenditures. Despite higher levels of subsidy, households with concession cards do not have lower out‐of‐pocket expenditures than non‐cardholder households except for the highest expenditure quintile. Cards provide most protection for GP out‐of‐pocket expenditures.  相似文献   

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The main objective of the analysis in this article is to do a health economic study of a preventive program that may influence the risk of hip fractures for people age 65 and older. The analysis of health promoting measures aimed at the prevention of hip fractures shows that there is a large potential for reducing costs and achieving significant health benefits within the older groups of the population. Prevention of hip fractures in the best cities seems to be cost-effective because it dominates a situation without any prevention. This implies a reduction in the total costs for society and an improvement in the quality of life and life expectancy.  相似文献   

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Health care expenditure and economic growth: Quantile panel-type analysis   总被引:1,自引:0,他引:1  
This study uses international total health care expenditure data of 31 countries from 1986 to 2007 for exploring the causality between an increase in health care expenditure and economic growth. The empirical procedure is divided into two parts. The first is the panel regression analysis and the second is the quantile regression analysis. The estimation of the panel regression reveals that, expenditure growth will stimulate economic growth; however, economic growth will reduce expenditure growth. With regard to the estimation of quantile regression, when economic growth is quantile, in countries with low level of growth, the influence of expenditure growth on economic growth is different. In countries with medium and high levels of economic growth, the influence of expenditure growth on economic growth is positive; when health care expenditure growth is quantile, the influence of economic growth on expenditure growth is more different.  相似文献   

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This paper aims at investigating the role of different types of proximity on the technological activity of a region within the context of a knowledge production function, where R&D expenditure and human capital are the main internal inputs. We thus assess to what extent the creation of new ideas in a certain region is enhanced by knowledge flows coming from proximate regions. In particular, we examine in detail different kinds of proximity by combining the usual geographical dimension with the institutional, technological, social and organizational proximity. The analysis is implemented for an ample dataset referring to 276 regions in 29 European countries (EU27 plus Norway, Switzerland) over the last decade. Results show that human capital and R&D are clearly essential for innovative activity with the former being much more effective in driving the production of knowledge. As for the proximity and network effects, we find that technological proximity outperforms the geographic one, whilst a limited role is played by social and organizational networks. As a result, the first policy message is that European regions still need to focus on policies aimed at increasing the endowments of well-educated labour force and therefore their knowledge base. Furthermore, we need innovation policies based on each region's specific innovation potential, due to the existing differences in geographical, cognitive, institutional, social and organizational structures and networks.  相似文献   

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This paper considers the use of alternative welfare metrics in evaluations of income inequality in a multi‐period context. Using Norwegian longitudinal income data, it is found, as in many studies, that inequality is lower when each individual's annual average income is used as welfare metric, compared with the use of a single‐period accounting framework. However, this result does not necessarily hold when aversion to income fluctuations is introduced. Furthermore, when actual incomes are replaced by expected incomes (conditional on an initial period), using a model of income dynamics, higher values of inequality over longer periods are typically found, although comparisons depend on inequality and variability aversion parameters. The results are strongly influenced by the observed high degree of systematic regression toward the (geometric) mean, combined with a large extent of individual unexpected effects.  相似文献   

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This paper addresses the impact of smoking restrictions in workplaces and educational establishments, cigarette price measures and various psychosocial indicators on cigarette demand, controlling for demographic and socio-economic factors. The data used for the analysis are collected via questionnaire that was administered in personal-in home interviews. A two-part model of cigarette demand [Cragg, J. G. “Some Statistical Models for Limited Dependent Variables with Application to the Demand for Durable Goods,” Econometrica, 39, 5, 1971, pp. 829–44.] is estimated. According to the estimations, cigarette price measures do not influence cigarette demand. On the contrary, smoking restrictions in workplaces and educational establishments and most of the psychosocial variables are found to affect cigarette demand considerably.  相似文献   

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Abstract .  Using German panel data, we investigate how well individuals predict their own future life satisfaction. The context is the decade following the 1990 reunification of Germany, which provided a large shock to the future prospects of the inhabitants of the former East Germany. We find that the majority of East Germans significantly overestimated the satisfaction gains from reunification in the years immediately after transition, but by 1994 had converged on correct aggregate expectations. Some evidence of micro-heterogeneity in the prediction errors is found by age and education. For West Germans, we find some initial over-optimism, although less than for East Germans.  相似文献   

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Prior to the last three decades, regular surveys on household income were rare or non-existent in many developed countries, making it difficult for economists to develop long-run series on income distribution. Using taxation statistics, which tend to be available over a longer time span, I propose a method for imputing the incomes of non-taxpayers, and deriving the underlying distribution of income. Because taxation statistics are typically disaggregated by gender, it is possible to derive separate income distribution series for men and women in countries where individuals file separately. I show that over the past four decades, the distribution of adult male incomes and the distribution of family incomes are highly correlated. Applying this method to Australia, I develop a new annual series for inequality from 1942 to 2001. Inequality fell in the 1950s and the 1970s, and rose during the 1980s and 1990s – a pattern similar to that in the UK.  相似文献   

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This paper presents a model of the intergenerational transmission of education and marital sorting. Parents matter both because of their household income and because their human capital determines the distribution of a child's disutility from making an effort to become skilled. We show that an increase in segregation has potentially ambiguous effects on the proportion of individuals that become skilled in the steady state, and hence on marital sorting, the personal and household income distribution, and welfare. We calibrate the steady state of our model to UK statistics. We find that an increase in the correlation of spouses in their years of education will bring about a small increase in the proportion of skilled individuals when the relative supply of skilled individuals is variable at the family level and a decrease when this supply is fixed. Ex-ante utility (of an unborn individual) increases in the first case and decreases in the second. The welfare effect of increased sorting is negative for unskilled individuals and positive for skilled individuals. Increased segregation always leads to an increase in welfare inequality between skilled and unskilled individuals.  相似文献   

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This paper estimates, using a large panel data set from rural Bangladesh, the effects of health shocks on household consumption and how access to microcredit affects households’ response to such shocks. Households appear to be fairly well insured against health shocks. Our results suggest that households sell livestock in response to health shocks and short term insurance is therefore attained at a significant long term cost. However microcredit has a significant mitigating effect. Households that have access to microcredit do not need to sell livestock in order to insure consumption. Microcredit organizations and microcredit therefore have an insurance role to play, an aspect that has not been analyzed previously.  相似文献   

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This paper investigates the performance of the tests proposed by Hadri and by Hadri and Larsson for testing for stationarity in heterogeneous panel data under model misspecification. The panel tests are based on the well known KPSS test (cf. Kwiatkowski et al.) which considers two models: stationarity around a deterministic level and stationarity around a deterministic trend. There is no study, as far as we know, on the statistical properties of the test when the wrong model is used. We also consider the case of the simultaneous presence of the two types of models in a panel. We employ two asymptotics: joint asymptotic, T, N →∞ simultaneously, and T fixed and N allowed to grow indefinitely. We use Monte Carlo experiments to investigate the effects of misspecification in sample sizes usually used in practice. The results indicate that the assumption that T is fixed rather than asymptotic leads to tests that have less size distortions, particularly for relatively small T with large N panels (micro‐panels) than the tests derived under the joint asymptotics. We also find that choosing a deterministic trend when a deterministic level is true does not significantly affect the properties of the test. But, choosing a deterministic level when a deterministic trend is true leads to extreme over‐rejections. Therefore, when unsure about which model has generated the data, it is suggested to use the model with a trend. We also propose a new statistic for testing for stationarity in mixed panel data where the mixture is known. The performance of this new test is very good for both cases of T asymptotic and T fixed. The statistic for T asymptotic is slightly undersized when T is very small (≤10).  相似文献   

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