公共教育、社会保障与收入分布

本文使用一个世代交叠模型揭示了公共教育与社会保障调节收入分布的作用机制。研究发现,公共教育能够有效地缩小家庭教育投资差距,从而降低收入差异;社会保障则通过减少低收入家庭的劳动供给、增加其有效家庭教育时间来降低收入差异。本文的数值模拟结果显示,在同样的支出水平下公共教育调节收入差异的能力比社会保障更强。并且当存在财政预算约束时,从降低收入差异的角度来看,若财政预算规模较低则应当将资金优先用于公共教育;若财政预算规模较高则应当在公共教育与社会保障之间保持平衡。     

Income inequality,unemployment, and poverty in Nigeria: a vector autoregressive approach

The main features of poverty are low levels of consumption and income, a fact‐of‐life in most African countries. This paper analyzes the fundamental trends of per capita income, government capital expenditure, the human development index, and the rate of unemployment in the Nigeria. A vector autoregressive model finds that: A reduced unemployment rate improves human development and consequently reduces poverty. As growth in public capital expenditure rises, unemployment falls and the human development index improves. Therefore, infrastructure‐based policies, which initially reduce unemployment, will also improve the living conditions of Nigerians in the end.     

Trade and financial liberalization with asymmetric information in bank financing

We investigate trade and financial openness in a small developing country where entrepreneurs need bank financing to operate in an import‐competing sector but banks do not observe their ability. This informational asymmetry causes adverse selection of low‐ability individuals into entrepreneurship and also prevents poor but able individuals from being entrepreneurs. We find that trade opening improves national welfare, but a tax is needed on foreign financial capital. Trade opening reduces an income gap between the rich and the poor, while financial opening affects this income gap ambiguously.     

对我国个人所得税税制设计的改进建议

我国现行个人所得税的税制设计,在一定程度上制约着其功能的发挥。应从简化税制,改进计征模式,合理确定扣除标准等方面对其做进一步改进。     

Ontology and Feminist Theorizing

There are large research, policy, and economic gaps between the ways US researchers and policy makers address the work/family bind amongst middleclass professionals and poor lone mothers. This is clearly seen in US welfare reform, an important piece of work/family legislation in the 1990s. The new rules make the work/family binds worse for low-income, poor mothers and do not alleviate poverty. With its clear expectation that poor mothers be employed, the legislation opens up new avenues to revamp low-wage work for breadwinners and to socialize the costs of caring for family. Closing the literature gap may help to close the policy gap, which, in turn, would promote more income equality.     

Must we choose? European unemployment, American inequality, and the impact of education and labor market institutions

In the last 15 years, two equilibria have arisen in the advanced world. On the one hand, wage dispersion has widened in those countries where unemployment has remained low (with cyclical variations). On the other hand, wherever income inequality has remained unchanged, unemployment has shot upwards. To account for these distinct patterns, we develop a political–economic model showing that, controlling for the skills of the population, the effects of technological and trade shocks (that have affected OECD nations) that are contingent on the institutional rules in place. Economies with generous unemployment allowances adjust through subsidized unemployment. By contrast, low levels of social protection lead to less unemployment but wider wage dispersion. The level of qualifications of the labor force determines the extent of the adjustment for a given institutional arrangement. We derive, in turn, the institutional structure of each country from the political conditions in place at the time of the shock. The empirical part successfully tests the model for the sample of European regions and US states.     

收入和流动性风险约束下家庭金融资产选择的实证研究

本文采用SCF数据,运用TOBIT模型从实证的角度研究收入风险和流动性约束对投资者资产选择的影响。研究结果表明：控制其他变量的影响之后，收入风险的增加会使得投资者降低对风险资产的需求．预期未来流动性的约束也减少投资者的风险资产投资比例。接着本文采用分类回归及将风险资产投资比例概念由狭义转变为广义，得到的结论都和前面的研究一致。最后．本文采用迭代LAD回归技术所得到的结果也证明了本模型的结论具有稳健性。     

教育对地区内收入差距的贡献:来自上海微观数据的考察

作为人力资本的一个度量,教育对于收入差距的贡献一直受到广泛的关注,但却研究不够.本文借助上海市1431户家庭的微观数据,估计了一个包含教育变量的收入决定函数,然后在基于回归分析的收入差距分解框架内,运用最新发展起来的夏普里值过程(Shapley Value Approach),分解出了教育对于收入差距的贡献大小.通过比较发现,与地区间差距的情形不同,教育对于地区内收入差距而言是最重要的影响因素.     

陕西省城乡居民收入差距的实证分析

自1981～2005年的25年间,以5年为一个考察期,对陕西省城乡居民平均绝对收入差距、平均相对收入差距进行考察和分析,发现在5个考察期中,陕西城乡居民平均绝对收入差距呈现指数增长的趋势,平均相对收入差距也在不断的上升。笔者认为只有不断对二元制度进行一元化改革和调整,以及在对农业方面进行持续和力度足够投资的基础上,才能在根本上缩小陕西城乡居民收入差距,缓解由城乡收入差距带来的各种社会矛盾,从而有利于和谐陕西早日实现。     

INCOME DISTRIBUTIONS IN INPUT-OUTPUT MODELS

The analysis of income distribution (ID) has traditionally been of prime importance for economists and policy-makers. However, the standard input–output (I–O) model is not particularly well equipped for studying current issues such as the consequences of decreasing access to primary inputs or the effects of specific redistributive policies. This paper addresses this gap in the existing literature. We propose that IDs can excellently be studied by restructuring the I–O relations. A new coefficients matrix is defined, the so-called augmented input coefficients matrix. This matrix is the sum of the intermediate input coefficients matrix and newly constructed matrices of sector-specific input coefficients that represent the existing distribution of income. We show that shifts in the distribution can be modelled by attributing weights to these matrices and vary these according to system-specific rules. Numerical illustrations based on the existing literature are given throughout the paper.