我国网络游戏政府监管的归口问题

近30年来我国网络游戏政府监管可分为4个时段:1990年代,监管主体初步形成;2000-2004年,多部门监管权之争;2005-2008年,文化部和新闻出版总署两部门监管地位凸显;2009年至今,文化部和新闻出版总署两部门监管范围厘清。网络游戏政府监管的归口问题具有复杂性,政府监管政策应在尊重实践的基础上,有更多科学的顶层设计。     

独立董事异质性与商业银行经营 绩效实证研究

异质性已成为独立董事研究一个新的切入点.独立董事职业背景异质性能够给银行决策带来更多资源便利,兼职数异质性能够给董事会带来更高的监管效率,性别异质性能够给银行治理带来不同的效果,它们均对银行绩效产生显著的正向效应,而独立董事任期异质性则对银行绩效产生显著的负向效应.     

Nonparametric regression in a statistical modified Helmholtz equation using the Fourier spectral regularization

In this paper, we deal with the Cauchy problem for the modified Helmholtz equation. We consider two models of data: the bounded variance model and the i.i.d. model. The trigonometric estimators of nonparametric regression is applied to solve the problem. In addition, the general forms of regularization parameter corresponding to the pointwise mean squared error and the mean integrated squared error are discussed in detail. The minimax rate convergence corresponding to the bounded variance model is also presented. In the i.i.d. model, we construct the asymptotic confidence interval for the solution of the problem. Finally, we give some numerical experiments and discuss the obtained results.     

青年农民工春节返乡“闪婚”的行为逻辑分析——基于豫西南D村的个案研究

基于田野调查,考察了D村青年农民工春节返乡“闪婚”现象,通过对该婚恋模式程序性仪式的展示,力图全面透视当地青年农民工“闪婚”这一婚恋模式的实践背景和行为逻辑,以及在这种行为逻辑背后所彰显的子辈权利意识兴起与父权衰落的农村家庭代际关系变迁。     

Simultaneous variable and factor selection via sparse group lasso in factor analysis

This paper considers variable and factor selection in factor analysis. We treat the factor loadings for each observable variable as a group, and introduce a weighted sparse group lasso penalty to the complete log-likelihood. The proposal simultaneously selects observable variables and latent factors of a factor analysis model in a data-driven fashion; it produces a more flexible and sparse factor loading structure than existing methods. For parameter estimation, we derive an expectation-maximization algorithm that optimizes the penalized log-likelihood. The tuning parameters of the procedure are selected by a likelihood cross-validation criterion that yields satisfactory results in various simulation settings. Simulation results reveal that the proposed method can better identify the possibly sparse structure of the true factor loading matrix with higher estimation accuracy than existing methods. A real data example is also presented to demonstrate its performance in practice.     

论中国古代"杂文"的文体特征

杂文名称内涵复杂,这不但表现在杂文之"杂"上,而且杂文之"文"也义域广泛.杂文从文类泛称到文体专称有一个复杂的演变过程,这使得其命名方式和分类特征都体现出中国古代文体分类的矛盾和困惑.作为文体专称意义上的杂文是在宋明总集的编纂过程中定型的,基础是以唐宋八大家为主的古文杂文创作,而编选体例和文类设置上则与<文选>和<文心雕龙>有很深的渊源.中唐以降,古文中杂文在内容功能、语言风格、表现方式以及题目篇幅上都有其独特的文体特征.     

Longitudinal Tracer Studies: Research Methodology of the Middle Range

This article reviews the longitudinal tracer study in the context of the researcher–practitioner relevance gap. It proposes the tracer as a methodological middle-range approach that takes account of relevancy and which involves practitioners in the research process. An ESRC research project about hoshin kanri (policy deployment) is used as an example to explain the longitudinal tracer study approach. The methodological approach is consistent with middle range theory and thinking, and involves skeletal prior theory, tags, a practitioner network, and continuous reflexivity. It is concluded that the longitudinal tracer study can be a useful middle-range solution to help close the researcher–practitioner gap.     

产权、地区环境与新企业所得税法实施效果——基于中国上市公司的企业税负研究

以上市公司为样本,实证分析了新税法实施前后产权之间和地区之间企业税负差异的变化。结果表明：新税法有效缩小了产权之间和地区之间企业的实际税负差异,达到了其公平税负的预期效果。地区环境对新税法缩小产权税负差异具有影响,市场化程度越高的地区,新税法实施后产权之间的税负差异越小。从而为新企业所得税法的进一步完善和税制改革提供参考和建议。     

基于SWOT分析的河北文化经济发展战略研究

从新时期河北文化经济发展的重要性出发,用SWOT方法系统分析现阶段河北文化经济发展具有的优势和劣势、面临的机会和威胁,有助于建构河北文化经济发展的策略体系,提出了从完善文化市场、协调文化供需、创新发展内容、健全管理体制等方面入手建构河北文化经济发展的策略.