东北地区社会保障适度水平分析

本文应用社会保障水平理论与适度水平测算模型 ,对东北三省社会保障支出水平的适度性问题进行了系统分析 ,得出基本结论即保障水平偏低且结构不合理。在此基础上 ,从东北社会保障体制中的缺陷出发分析造成保障水平现状的原因 ,并应用社会保障水平供求平衡理论和社会保障水平效率标准 ,提出了完善社会保障水平的建议和措施。     

山东省社会保障水平及其适度选择

本文立足山东省人口和社会经济发展状况 ,对其现有社会保障水平进行了测算 ,并对其适度状况做出判断与评价 ,进而对山东省的社会保障水平做出适度选择 ,以期确立与社会经济发展相协调的适度社会保障水平 ,促进山东省社会保障制度运行与社会经济发展的良性互动     

江苏农村新型合作医疗保障水平的测定与分析

江苏农村新型合作医疗的实施居全国之先。本文利用相关指标及数理模型对其保障水平及“适度性”进行测定、评估,发现现阶段江苏农村新型合作医疗保障水平低于适度水平的下限值,说明该制度的供给水平不足,呈现“低度”态。要实现江苏农村合作医疗保障水平的总体适度平衡,可以从合作医疗的基金支出与基金供给两个方面采取适度性调控的平衡策略,促使江苏农村医疗保障制度运行与社会、经济发展良性互动。实现江苏地区社会经济的可持续发展。     

从“五普”数据看吉林省人口死亡水平和死亡模式

由 2 0 0 0年人口普查有关吉林省人口死亡状况的数据计算得到的用于衡量人口死亡水平的几个指标显示 ,吉林省总人口死亡率、婴儿死亡率等自建国以来持续降低 ,预期寿命不断增长 ,居民健康水平呈良性发展。但是 ,总人口死亡水平持续降低的同时 ,死亡模式还存在着明显的城乡差异 ,吉林省农村地区的妇幼保健水平以及养老保障工作还有待于进一步加强和提高。     

我国区域城市化发展水平的差异分析

全国第五次人口普查 31个省区的主要数据表明 ,我国的人口城市化水平存在着显著的地区差异。人口数量的变动特点与生产力发展水平 ,特别是人均GDP和投资 ,有着密切的关系。此外 ,统计口径的变化也是一个重要的影响因素。     

80年代以来我国少数民族出生人口性别比与生育水平变化的历史回顾

本文以“四普”、“五普”数据为基础,采用人口间接估计技术对20世纪80年代以来我国少数民族人口的生育水平和出生人口性别比变化的历史过程进行回顾,探讨生育水平下降过程中,出生人口性别比的变化趋势,并以蒙古族、回族和维吾尔族为例进行对比分析,结果表明当生育水平下降到较低水平时与出生人口性别比之间有明显的相关关系。     

Linear Regression for Panel With Unknown Number of Factors as Interactive Fixed Effects

In this paper, we study the least squares (LS) estimator in a linear panel regression model with unknown number of factors appearing as interactive fixed effects. Assuming that the number of factors used in estimation is larger than the true number of factors in the data, we establish the limiting distribution of the LS estimator for the regression coefficients as the number of time periods and the number of cross‐sectional units jointly go to infinity. The main result of the paper is that under certain assumptions, the limiting distribution of the LS estimator is independent of the number of factors used in the estimation as long as this number is not underestimated. The important practical implication of this result is that for inference on the regression coefficients, one does not necessarily need to estimate the number of interactive fixed effects consistently.     

Differences in Retail Inventory Investment Behavior During Macroeconomic Shocks: Role of Service Level

In this article, we analyze how retailers change their inventory investment behavior in response to macroeconomic shocks. We examine if service level, as measured by the ratio of stockout to inventory holding costs, can explain the differences in observed behavior across retailers. We use data on macroeconomic indicators and quarterly filings of US public retailers from 1985 to 2009 to estimate a dynamic model of short‐ and long‐term impact of macroeconomic shocks on inventory investment. Our results show that retailers with a high service level increase their inventory investment significantly more than those with a low service level during expansion shocks. Conversely, retailers with a low service level curtail their inventory investment significantly more than those with a high service level during periods of economic contractions. Thus, we show that the aggregate change in inventory investment documented in prior macroeconomics research is driven by different sets of retailers, as predicted by newsvendor logic. We draw implications of our findings to retailers as well as their suppliers.     

公共服务均等化的区域比较研究——以陕西省基本养老保险省级统筹为例

公共服务均等化的实质在于缩小城乡之间、不同区域之间、不同群体之间的差距。作为基本公共服务的养老保险,其均等化要求在不同区域之间、不同社会群体之间享有的服务水平和质量大体相等。通过实证对比分析,实行基本养老保险省级统筹后,陕西省11个地市间退休职工基本养老金水平差距比省级统筹前大大减少,养老保险公共服务均等化第一阶段的目标初步实现,下一阶段政策的重点在于尽快实行基本养老保险的全国统筹。