Public–private wage differential and gender gap in Latin America: Spoiled bureaucrats and exploited women?

This paper uses a rich collection of household surveys to investigate the wage differential between the public and private sectors in 13 Latin American countries. It also studies how the sector of employment affects the gender wage gap. Contrary to what is commonly thought, it is found that, in the majority of Latin American countries, there is a premium associated with working in the public sector. It is also found that the premium is often higher for women than for men but that this difference does not compensate for the wide gender gap.     

中国改革的历史进程评析

改革之前几次调整的中断是因为当时计划经济有其存在的合理性。从1978年开始的改革是社会主义基本矛盾运动的必然要求,其取得巨大成就的原因是因为把握了社会主义制度自我完善的改革性质,选择了渐进式的发展方略。迈入新世纪,改革处于攻坚阶段,我们要清醒地认识矛盾和困难,知难而进,进一步处理好改革、发展与稳定、公平与效率、经济体制改革与政治体制改革的关系,为实现社会主义现代化的目标而不懈努力。     

Comparison of Separable Components in Different Samples

Abstract.  Imagine we have two different samples and are interested in doing semi- or non-parametric regression analysis in each of them, possibly on the same model. In this paper, we consider the problem of testing whether a specific covariate has different impacts on the regression curve in these two samples. We compare the regression curves of different samples but are interested in specific differences instead of testing for equality of the whole regression function. Our procedure does allow for random designs, different sample sizes, different variance functions, different sets of regressors with different impact functions, etc. As we use the marginal integration approach, this method can be applied to any strong, weak or latent separable model as well as to additive interaction models to compare the lower dimensional separable components between the different samples. Thus, in the case of having separable models, our procedure includes the possibility of comparing the whole regression curves, thereby avoiding the curse of dimensionality. It is shown that bootstrap fails in theory and practice. Therefore, we propose a subsampling procedure with automatic choice of subsample size. We present a complete asymptotic theory and an extensive simulation study.     

A class of partially linear single‐index survival models

The authors define a class of “partially linear single‐index” survival models that are more flexible than the classical proportional hazards regression models in their treatment of covariates. The latter enter the proposed model either via a parametric linear form or a nonparametric single‐index form. It is then possible to model both linear and functional effects of covariates on the logarithm of the hazard function and if necessary, to reduce the dimensionality of multiple covariates via the single‐index component. The partially linear hazards model and the single‐index hazards model are special cases of the proposed model. The authors develop a likelihood‐based inference to estimate the model components via an iterative algorithm. They establish an asymptotic distribution theory for the proposed estimators, examine their finite‐sample behaviour through simulation, and use a set of real data to illustrate their approach.     

家族制企业之利弊与对策

家族制企业是我国经济的重要组成部分,它的存在有着历史必然性,显示出强大的生命力.家族制企业在市场竞争中表现出无可比拟的优势,使它日益强大;但同时我们也要清楚地看到家族制企业的劣势,分析利弊,创立适合的管理模式,促进家族制企业的发展.     

从传统反法到海上争霸─—中古英国对外关系的演进

１１－１７世纪英国对外关系的演进，经历了一个由与法国争夺领地的传统战争到与欧陆海上强国争夺海洋霸权的过程，表现出古代封建王室外交向近代资产阶级国家外交转变的特征。这一转变是封建盛、晚期政治、经济、文化等诸因素共同作用的结果。它对这一时期英国及西欧大陆各主要国家的发展产生了重大影响，为近代欧洲和世界关系格局的形成奠定了基础。     

论公共行政学的范式转型

从19世纪末到如今,公共行政学在一个多的世纪的发展过程中,经历了几个不同的发展阶段,对此,有学者称之为范式的转型。当然,也有学者认为,公共行政学还没有从根本上超出管理行政的范式。在我们看来,就公共行政学本身来讲,它的确还没有出现范式的根本转型。然而,同传统的行政观念或思想相比,它已是对传统行政观念或思想的一种根本转型。目前,全球行政改革运动的深入、持续发展表明,公共行政学范式的真正转型已具备了一定的现实基础和前提。     

基于Lennard-Jones和Soft-Sphere势能模型的流体传递性质分子动力学模拟比较

利用分子动力学模拟计算传递性质方法，采用Green-Kubo关系式基于Lennard-Jones势能模型和Soft-Sphere势能模型模拟了速度相关函数、压力张量相关函数、热流相关函数以及它们对应的传递系数，讨论了Lennard-Jones势能分子间吸引力和Soft-Sphere势能“软度”对流体传递性质的影响．     

Panel regression models for measuring multidimensional poverty dynamics

This work concerns the study of poverty dynamics and the analysis of the influencing socio-demographic factors. A fuzzy and multidimensional approach has been chosen in order to define two different poverty measures. A panel regression model has been estimated and particular attention has been paid to the treatment of the unobservable heterogeneity among longitudinal units. The specified model combines autoregression with variance components. The empirical analysis has been conducted using the data set of the British Household Panel Survey (BHPS) from 1991 to 1997. This work was co-financed by Murst funds for the projects “Occupazione e disoccupazione in Italia: misura e analisi dei comportamenti”. The paper is the result of the common work of all the authors; in particular G. Betti has written Sects. 2,5.1 and 5.3.1; A. D’Agostino has written sections 4, 5.2 and 5.4; L. Neri has written Sects. 1, 3, 5.3.2 and 6.     

The ubiquitous angle

Summary.  Previously we used the geometry of n -dimensional space to derive the paired samples t -test and its p -value. In the present paper we describe the 'ubiquitous' application of these results to single degree of freedom linear model hypothesis tests. As examples, we derive the p - and t -values for the independent samples t -test, for testing a contrast in an analysis of variance and for testing the slope in a simple linear regression analysis. An angle θ in n -dimensional space is again pivotal in the development of the ideas. The relationships between p , t , θ , F and the correlation coefficient are also described by using a 'statistical triangle'.