《中国训诂学》的学科体系问题--兼与白兆麟先生商榷

20世纪 80年代以来的各家通论性训诂学著作 ,学科体系往往比较粗疏 ,行文重点也略有差异。最近 ,有人对冯浩菲先生《中国训诂学》一书的学科体系提出了质疑。实际上 ,冯书的学科体系有其合理的因素并有鲜明的特色 ,不必妄加指责     

优良学风是培养高质量人才的根本保证

本文从南昌航空工业学院多年来在学风建设方面所做的主要工作和取得的积极成果出发 ,系统地论述了学风建设对人才培养质量的重要作用 ,得出了优良学风是培养高质量人才的根本保证的基本结论 ,并对如何培育优良学风进行了积极的思考 ,提出了相应的对策。     

城管执法权的法制化问题研究

城管集中行使执法权是地方政府为改善横向权力过于分散状况的一种尝试。相对集中处罚权制度为这一做法提供了合法性基础,但这个制度的实现本身也需要法制化,特别是需要完善行政组织法;需要处理好处罚权的相对集中与行政监督检查、强制执行,以及与分散行使的行政许可等权力之间的衔接与协调的问题。从长远看,城管执法的法制化还要特别注意控制城管执法权自我膨胀的倾向。     

试析学报编辑部的编务工作

学报编务工作是编辑工作的组成部分,是保证学报出版质量的重要内容。本文从编务工作的重要性、编务工作的特点、编务工作的作用、编务工作的任务几方面阐述了学报的编务工作。     

Chinese Immigrant Entrepreneurship in Italy’s Coffee Bars: Demographic Transformation and Historical Contingency

Since the Economic Recession in the late 2000s, many neighbourhood coffee bars in Northern and Central Italy have been taken over by Chinese immigrants. This article investigates why neighbourhood bars, which are thought to be at the heart of Italian urban culture, have become a new business niche for Chinese immigrants in spite of overwhelmingly anti-immigrant discourse. By elucidating the political economy of Italy's coffee bar industry and restructuring of its Chinese ethnic economy, it shows how the formation of this new immigrant business niche is a form of historical contingency embedded in a set of structural transformation processes. The broader purpose of the article is to contribute to an understanding of the structural mechanisms of embedded immigrant entrepreneurship and immigrants’ economic incorporation, as well as to debates on the roles of immigrants in the new urban economy and related local cultures of a multi-ethnic European nation-state.     

Inferactive data analysis

We describe inferactive data analysis, so-named to denote an interactive approach to data analysis with an emphasis on inference after data analysis. Our approach is a compromise between Tukey's exploratory and confirmatory data analysis allowing also for Bayesian data analysis. We see this as a useful step in concrete providing tools (with statistical guarantees) for current data scientists. The basis of inference we use is (a conditional approach to) selective inference, in particular its randomized form. The relevant reference distributions are constructed from what we call a DAG-DAG—a Data Analysis Generative DAG, and a selective change of variables formula is crucial to any practical implementation of inferactive data analysis via sampling these distributions. We discuss a canonical example of an incomplete cross-validation test statistic to discriminate between black box models, and a real HIV dataset example to illustrate inference after making multiple queries on data.     

A Bayesian mixture of experts approach to covariate misclassification

This article considers misclassification of categorical covariates in the context of regression analysis; if unaccounted for, such errors usually result in mis-estimation of model parameters. With the presence of additional covariates, we exploit the fact that explicitly modelling non-differential misclassification with respect to the response leads to a mixture regression representation. Under the framework of mixture of experts, we enable the reclassification probabilities to vary with other covariates, a situation commonly caused by misclassification that is differential on certain covariates and/or by dependence between the misclassified and additional covariates. Using Bayesian inference, the mixture approach combines learning from data with external information on the magnitude of errors when it is available. In addition to proving the theoretical identifiability of the mixture of experts approach, we study the amount of efficiency loss resulting from covariate misclassification and the usefulness of external information in mitigating such loss. The method is applied to adjust for misclassification on self-reported cocaine use in the Longitudinal Studies of HIV-Associated Lung Infections and Complications.     

《未成年人保护法》修订应充分体现儿童法和社会法定位

《未成年人保护法》是我国为未成年人赋权并提供特别保护的法律,兼具儿童法和社会法特性,既要充分肯认和体现未成年人的主体地位,又要积极回应未成年人保护的现实需求。2019年公布的《未成年人保护法(修订草案)》在立法理念和体系建构上均有重大突破,但其篇章结构和规范条文尚有待细致研讨和充实调整。以现代儿童保护体系所遵循的家庭首要责任、国家全局责任、社会协作责任内在逻辑为观照,《修订草案》可进一步优化当前铺排不畅的篇章布局,凸显政府保护责任的基础地位,同时在未成年人参与权的具体实现、监护与收养制度的均衡与贯通、网络保护责任主体和网络暴力样态的扩展等方面臻于完善。     

数字内容产品消费扩散与模仿的空间模式——基于空间面板模型的计量研究

数字内容产品具有非实物特征,其网络生产与交易几乎不包含地理距离成本,因而企业需要认识其扩散模式,重新制定与传统方式不同的全域营销策略。此研究借助空间面板数据模型,对某类数字内容产品的省级销售数据进行分析,从消费扩散角度检验了其在网络销售过程中存在的空间相关性与空间固定效应。本文的主要实证发现包括,数字内容产品的网络销售并没有因为物理距离的消失而失去其空间相关性,消费者之间的模仿行为是驱动区域内产品扩散的直接动力,此外,相邻区域间的消费存在着同步增长。     

基于剔除机械效应的资本结构调整速度再检验

关于资本结构调整速度的研究至今仍未获得一致结论的原因之一在于传统的部分调整模型可能存在机械效应。通过对账面资产负债率的会计恒等式进行分解,剔除由资产规模变动引起的机械效应,在此基础上以1998年至2011年中国仅发行A股的非金融类上市公司面板数据为样本,采用两阶段估计法重新检验企业主动的融资行为对资本结构调整速度和均值反转的影响。研究结果表明,在传统的采用资产负债率变动作为因变量的估计下得到的资本结构调整速度约为13%,而剔除由资产规模变动引起的机械效应之后估计得到的调整速度明显下降到5%左右。这意味着在剔除由资产规模变动引起的机械效应后,企业的融资行为仍会引起资本结构的均值反转,但因调整速度很低而使均值反转的趋势不是很明显。