房产免税立法与税收公平的归位

房产税法律制度的改革折射的是社会演进与经济发展的必然趋势。经济发展加剧了社会成员间资源占有的不公平,但是房产税法律制度的发展却并没有弥合资源分配的不公平,反而在多元利益的指导下出现了三种维度的不公平：政府与市场之间的不公平、中央与地方之间的不公平以及居住者和投机者之间的不公平。刚性的税法常常为社会、经济所不融,免税的设计恰好可以弥补税法柔性的不足,在确保财政收入的情况下兼顾社会公平的维护,这也是深化财税体制改革背景下税法变革的秩序要求。房产税法律制度的变革应以量能课征为依据,以税收中性为准绳,区分房产的普遍性与特殊性,达成税收公平的改革效果。     

A Necessary Condition for the Strong Oracle Property

A problem of using a non‐convex penalty for sparse regression is that there are multiple local minima of the penalized sum of squared residuals, and it is not known which one is a good estimator. The aim of this paper is to give a guide to design a non‐convex penalty that has the strong oracle property. Here, the strong oracle property means that the oracle estimator is the unique local minimum of the objective function. We summarize three definitions of the oracle property – the global, weak and strong oracle properties. Then, we give sufficient conditions for the weak oracle property, which means that the oracle estimator becomes a local minimum. We give an example of non‐convex penalties that possess the weak oracle property but not the strong oracle property. Finally, we give a necessary condition for the strong oracle property.     

Lassoing the Determinants of Retirement

This article uses Danish register data to explain the retirement decision of workers in 1990 and 1998. Many variables might be conjectured to influence this decision such as demographic, socioeconomic, financial, and health related variables as well as all the same factors for the spouse in case the individual is married. In total, we have access to 399 individual specific variables that all could potentially impact the retirement decision. We use variants of the least absolute shrinkage and selection operator (Lasso) and the adaptive Lasso applied to logistic regression in order to uncover determinants of the retirement decision. To the best of our knowledge, this is the first application of these estimators in microeconometrics to a problem of this type and scale. Furthermore, we investigate whether the factors influencing the retirement decision are stable over time, gender, and marital status. It is found that this is the case for core variables such as age, income, wealth, and general health. We also point out the most important differences between these groups and explain why these might be present.     

Variable selection in additive quantile regression using nonconcave penalty

This paper considers variable selection in additive quantile regression based on group smoothly clipped absolute deviation (gSCAD) penalty. Although shrinkage variable selection in additive models with least-squares loss has been well studied, quantile regression is sufficiently different from mean regression to deserve a separate treatment. It is shown that the gSCAD estimator can correctly identify the significant components and at the same time maintain the usual convergence rates in estimation. Simulation studies are used to illustrate our method.     

表面摩擦驱动收卷的玻纤布卷驱动力特征

与传统股权相比,扶贫股在出资、股权类型、权利内容、收益分配、退出机制、风险防范等方面形成了许多创新做法,但存在制度回应弱、效益吸引力不够、相关利益协调不足、长效的收益分享机制缺失、平台治理参与局限等深层次问题。据此,应立足中国实践,在集体股的框架内,明确扶贫股的法律属性,以集体股制度创新为路径,从制度层面规范扶贫股。     

对知识产权国际保护的反思——从公共健康角度

当前,知识产权保护的国际化,实际上就是发达国家知识产权制度的国际化.在全球不同背景下强制性地运用单一制度必然会出现不和谐的声音,全球性的公共健康危机凸显了这种冲突,引发舆论对知识产权国际保护合理性的探讨.知识产权与健康权都是社会承认的基本人权,其中任何一种在特定的背景中都有自身的价值,但并非所有的人权都是并列的.当全球有数以万计的人正在遭受公共健康威胁时,孰重孰轻的问题就不言而喻了,应当使公共健康与知识产权国际保护已经失衡的天平回归平衡.     

国家投资科研项目成果的知识产权归属探讨

通过对国家投资产生的科研成果现状的分析以及与国外的相关政策的对比,讨论在不同的情况下,有可能发生的知识产权归属争议;其次,讨论在职务发明、非职务发明、有合同约定、没有约定等情况下怎样理顺权属关系。并对今后知识产权在归属方面的发展趋势作了较为深入的探讨。国家的法律或者政策应该在有效地处理和化解来自各方的权属 纠纷和矛盾,充分调动国家、集体和个人的积极性,鼓励在知识经济条件下努力创造出更多、更有价值的知识产权方面,发挥更大的作用。     

网络犯罪的法理分析和立法思考

随着计算机和信息网络的普及,人类的交流更加方便和快捷。与此同时,网络犯罪也呈现出复杂多样的形态,且危害性日益严重。令人忧虑的是,由于我国法律体系建设的滞后,对一些新型的网络犯罪行为的定罪还存在无法可依的现象。笔者试就几种主要的网络犯罪行为进行分析,并在此基础上对网络立法问题提出一些初步的意见。     

“第三部门”视野下的福建集体林业产权制度改革

福建集体林业产权制度改革进入第二阶段后,随着广大林农自治能力的逐步提高,市场和政府不能涵盖的林业生产领域方面出现了"第三部门".本文对"第三部门"的出现、现状及其存在的问题进行了经济分析,并在此基础上,提出要加强对"第三部门"的制度支持与约束,完善提高"第三部门"自身参与能力的政策措施.