农民工工资支付法治化问题研究——基于对《保障农民工工资支付条例》的解读

《保障农民工工资支付条例》(以下简称《条例》)是我国当前面对农民工工资支付出现的新问题制定的一套具有规范化、权威性和有效性的法律保障机制。从农民工工资支付法治化保障机制的制度特点来看,《条例》的主体责任更加明确化,处罚方式强调规范化,监管过程具备严密化,监管主体呈现多元化。《条例》采取全程协同监管手段消除“灰色治理”的“梗阻”,用“法律红线”落实并明确各方的法律主体责任,以细化规定的方式打通工资支付的“绿色通道”,从而能够保障《条例》的有效落实。为了更好地保障农民工的切身利益,《条例》主要从实践逻辑层面上落实法治化保障措施:明确不同监管主体在监督检查领域中的职能定位,对用人单位实行严格的资格认定与法律责任制,在监管领域中始终关注劳有所得的民生问题。     

The effect of small sample on optimal designs for logistic regression models

Asymptotic methods are commonly used in statistical inference for unknown parameters in binary data models. These methods are based on large sample theory, a condition which may be in conflict with small sample size and hence leads to poor results in the optimal designs theory. In this paper, we apply the second order expansions of the maximum likelihood estimator and derive a matrix formula for the mean square error (MSE) to obtain more precise optimal designs based on the MSE. Numerical results indicate the new optimal designs are more efficient than the optimal designs based on the information matrix.     

Diagnostics of multiple group influential observations for logistic regression models

In this paper, two new multiple influential observation detection methods, GCD.GSPR and mCD*, are introduced for logistic regression. The proposed diagnostic measures are compared with the generalized difference in fits (GDFFITS) and the generalized squared difference in beta (GSDFBETA), which are multiple influential diagnostics. The simulation study is conducted with one, two and five independent variable logistic regression models. The performance of the diagnostic measures is examined for a single contaminated independent variable for each model and in the case where all the independent variables are contaminated with certain contamination rates and intensity. In addition, the performance of the diagnostic measures is compared in terms of the correct identification rate and swamping rate via a frequently referred to data set in the literature.     

“省直管县”改革能否提升县级财力水平?

将“省直管县”财政体制改革作为拟自然实验，基于全国县级面板数据，利用可有效校正选择偏差问题的 PSM-DID 方法构造“反事实”状态，估计改革对县级财力水平的平均处理效应。结果显示: 改革增加了人均本级财政收入，却减少了人均转移支付水平，且下降幅度较大，致使人均财政总收入减少，表明“省直管县”改革不但无法提升，甚至会在一定程度上恶化县级财政状况。东、中部地区的平均处理效应与全国类似，上述结论具有比较好的稳健性。此外，还进行了影响机制检验，地级市与县、县与县之间的财政竞争以及省对各市、县的协调机制会在一定程度上影响财政体制改革的效果。     

PCA likelihood ratio test approach for attributed social networks monitoring

Abstract

One of the most important factors in building and changing communication mechanisms in social networks is considering features of the members of social networks. Most of the existing methods in network monitoring don’t consider effects of features in network formation mechanisms and others don’t lead to reliable results when the features abound or when there are correlations among them. In this article, we combined two methods principal component analysis (PCA) and likelihood method to monitor the underlying network model when the features of individuals abound and when some of them have high correlations with each other.     

The quantile-based flattened logistic distribution: Some properties and applications

In this paper, the quantile-based flattened logistic distribution has been studied. Some classical and quantile-based properties of the distribution have been obtained. Closed form expressions of L-moments, L-moment ratios and expectation of order statistics of the distribution have been obtained. A quantile-based analysis concerning the method of matching L-moments estimation is employed to estimate the parameters of the proposed model. We further derive the asymptotic variance–covariance matrix of the matching L-Moments estimators of the proposed model. Finally, we apply the proposed model to simulated as well as two real life datasets and compare the fit with the logistic distribution.     

Grandparents providing care for grandchildren and employment status of grandparents in South Korea

This study examines the association between providing care for grandchildren and the economic status of grandparents, focusing on the employment status. This study asks two questions. First, is providing care for grandchildren related to Korean grandparents’ employment status? Second, are the intensities of providing care for grandchildren related to grandparents’ employment status? In examining these research questions, this study focuses on gender and caregiving intensity. The findings suggest that providing care for grandchildren was associated with Korean grandmothers’ employment status. In addition, there are different relationships between providing care for grandchildren and grandparents’ employment status according to the caregiving intensities.     

基于ACC支付模式的供应链金融模型研究

在零售商存在资金不足和顾客需求随机情况下，以报童模型为基础，针对变质品构建了供应链金融问题和ACC支付模式（提前支付Advance、现金支付Cash和信用支付Credit）相结合的零售商订货模型，即零售商与供应商、融资机构合作条件下的模型。研究表明，零售商会随着最优订货批量和最低期望成本的增加和降低趋势，进而调整订货量，从而规避供大于求的风险，最终降低总的期望成本。同时供应商可以适当调整支付比例，让零售商来分担坏账和商品变质风险。     

工伤保险赔偿责任研究 ——以劳务派遣用工为切入点

劳务派遣作为一种灵活的用工形式,受到我国各类用人单位的青睐和广泛运用。2013年《劳动合同法》修订弥补了我国劳务派遣制度上的不足,但由于起步时间较晚,加上制度的复杂性,存在工伤赔偿制度的责任划分不清晰、工伤保险待遇先行支付具体操作存在困难、异地劳务派遣工伤保险制度执行不明确等方面的问题。我国需要从确立《劳动合同法》中派遣单位与用工单位的具体责任分担制度、完善劳务派遣工伤待遇先行支付规定、明确异地保险制度相关规定等方面入手,进一步完善工伤保险制度在劳务派遣用工中的适用,有效保护被派遣劳动者的合法权益。     

农用承包地流转意愿的实证研究--基于福建省六地市农户问卷调查

从农户意愿角度，以福建省农民的农用承包地为研究对象，对影响农户承包地流转的因素进行分析，通过实地调查和问卷调查的形式收集到影响农户流转承包地的样本数据，并对通过建立二元Logistic模型对各个因素的显著性进行检验。通过实证研究发现，户主受教育程度、户主的职业、农户家庭的人口、家庭的收入主要来源、承包地面积和农户流转承包地的租金水平是农户流转承包地的显著性影响因素，其中户主受教育程度、家庭的收入主要来源、承包地面积和租金水平是正向影响，户主的职业和农户家庭的人口是负向影响。根据研究的结论提出相应的政策建议。