The optimal portfolio for the two-pillar mandatory pension system: the case of Poland

In the recent decade, there has been observed across the Central and Eastern European states the regulatory trend towards the increase of the non-financial (first) pension pillar size at the expense of the financial (second) pillar. It tends to question the consequences of this shift for the future retirement benefits. Applying the portfolio approach we address this issue by running a series of simulations to find out how to allocate pension contributions between both pillars in an optimal way. Our study contributes to the existing literature as follows. First, we do not perform the assessment of the predetermined regulatory solutions, but we look for an optimal one. Moreover, we allow our optimal rule to be time-varying, if necessary, which would be a true novelty in this research area. Second, we do not base our estimates on historical trends; rather, we apply the long-term economy’s projection to account for the society’s ageing impact, which is a crucially important factor for the solvency of the pension system. Adapting some of the simulation assumptions to fit the Polish case, our results confirm that current regulations underestimate the role of the capital pillar and the optimal allocation between both pillars should be time-varying.     

浅析农村妇女在婚姻家庭中土地财产权益及法律保护

土地是农民生存和发展的根基,土地问题是解决当前"三农"即农村、农业、农民问题的核心.土地制度的建立完善和实施直接关系到国家农业产业的发展和农村社会、经济秩序的稳定.农村妇女由于传统习惯和文化素质的影响对土地的依赖性更强,所以对农村妇女土地权益的保护更为重要.《婚姻法》修正后对夫妻财产制度作了许多新的规定,特别是第39条第2款,"夫或妻在家庭土地承包经营中享有的权益等,依法应当予以保护"的规定,是婚姻法对夫妻财产制度的一个新的突破.目前,农村妇女土地权益受侵害的现象比较严重和突出,在一定程度上扰乱了农村的经济秩序和社会秩序,因此,关注农村妇女权益保护,对解决农村妇女土地承包权问题是非常必要的.     

浅谈少数民族地区的刑法适用

我国是一个统一的多民族国家,根据各民族政治、经济、文化各方面的特点,以及少数民族同胞的居住特点和不同的风俗习惯,结合我国少数民族地区刑法适用应遵循的思想原则,提出我国少数民族地区变通适用刑法应当考虑的几个问题.     

美国公共预算改革的途径:管理、政治和法律

公共预算是通过分配有限资源来实现人类各种不同目的的公共行政活动,目前是公共行政的核心所在。为解决如何分配资源的问题,美国公共预算领域产生并发展了多种预算研究途径,戴维.H.罗森布鲁姆将它们归纳为管理途径、政治途径与法律途径。本文试图从该视角入手,以此对美国公共预算改革进行历史的回顾,探析公共预算改革的发展趋势,从而阐明在实践中运用各种预算理论解决不同预算问题的可行性和必要性。     

Law without justice: The dilemmas of formalization and fairness in the legalistic organization

There is growing evidence of a litigation mentality rampant in organizations, which has created a legalistic mindset in many managers. Increasingly, managerial decisions are becoming dominated by a concern for what is legally defensible at the expense of broader social considerations such as justice and fairness. The papers in this special issue explore how this legalistic mindset has created new organizational and social dilemmas, and situations of law whithout justice.     

用反木桶定律探析邮政物流的利益点

从管理学木桶定律的角度,分析了邮政物流发展所具有的优势,探讨了邮政体制改革后邮政物流发展的利益点。     

New Technology in Unionized Firms: Advantages of Mandatory Bargaining

U.S. Labor Law currently allows employers whose work forces are unionized to introduce new technologies without bargaining over the decision to do so. This forces unions to adopt inefficient strategies when negotiating collective bargaining agreements in an effort to minimize the impact of technological change on their members. Allowing unions to bargain over the decision to introduce new technologies would obviate their having to resort to these inefficient strategies. In addition, it might increase the likelihood of employees suggesting alterations in production processes that would increase the rate of technological change. For these reasons, this article advocates amending U.S. labor law to require employers to bargain over the introduction of new technologies.     

历史与现在——国际商法的演进对我们的启示

文中对国际商法从古代商法、中世纪商人法到近代商法国内化以及现代商人法的历史演进过程进行研究,并从纵向和横向的角度解读了国际商法的发展带给我们的启示。     

A note on the projection properties of Hadamard matrices obtained by the first Payley construction

We show that the projections on four factors of an arbitrary orthogonal array of strength 2 allow the estimation of main effects and two-factor interactions when all other effects are assumed to be zero, if those projections satisfy the bounds given by Weils theorem. The only exceptions are the Hadamard matrices of orders 16 and 24. A consequence is again the estimability of main effects and two-factor interactions for the projections on four factors of the first Payley construction for arbitrary run size.     

金融发展理论:一个文献综述

在麦金农和萧之后 ,2 0世纪 80年代末 ,现代金融发展理论在利用现代金融理论和内生经济增长理论重构自己的理论基础之后 ,已经成为一个包括发展中国家和发达国家金融发展问题的一般理论。本文依照金融发展理论的发展脉络系统评述了这一领域的主要文献 ,介绍了最新研究进展。