论就业导向视野下的酒店管理专业工学结合人才培养模式——瑞士络桑GLION INSTITUTE OF HIGHER EDUCATION教学计划借鉴

通过对瑞士洛桑GLION INSTITUTE OF HIGHER EDUCATION专业教学计划的考察和研究,提出酒店管理专业的教学计划,对就业导向视野下的高等职业教育工学结合人才培养模式研究,具有借鉴意义和指导作用。     

力学视角的地方政府绩效评估路径研究

根据力学公式W=FS演化出了新的等式AW=AF·AP,评估功用AW(appraisal -work)等于评估力AF(appraisal-force)乘以评估路径AP(appraisal-path).在这一等式的框架下,从力学的角度,以评估路径为线索和中心,阐述了什么是评估路径,分析了评估路径的影响因素及其关联因素评估力.     

Asymptotic normality of wavelet estimator for strong mixing errors

In this paper, we consider a non-parametric fixed design regression model based on strong mixing sequences. We use a new tool presented in the literature recently for the weighted sum estimate, and establish the asymptotic normality of a wavelet estimator for an unknown regression function.     

Statistical properties of Rechtschaffner designs

Rechtschaffner designs are saturated designs of resolution V   in which main effects and two-factor interactions are estimable if three-factor and higher order interactions are negligible. Statistical properties of Rechtschaffner designs are studied in this paper. Best linear unbiased estimators of main effects and two-factor interactions are given explicitly and asymptotic properties of correlations between these estimators are studied as well. It is shown that designs recommended by Rechtschaffner [1967. Saturated fractions of 2ⁿ$2^n$ and 3ⁿ$3^n$ factorial designs, Technometrics 9, 569–576] are not only A-optimal but also D-optimal. Comparisons of Rechtschaffner designs with other A- and D-optimal designs of resolution V are also discussed.     

A Bayesian approach to the statistical analysis of device preference studies

Drug delivery devices are required to have excellent technical specifications to deliver drugs accurately, and in addition, the devices should provide a satisfactory experience to patients because this can have a direct effect on drug compliance. To compare patients' experience with two devices, cross-over studies with patient-reported outcomes (PRO) as response variables are often used. Because of the strength of cross-over designs, each subject can directly compare the two devices by using the PRO variables, and variables indicating preference (preferring A, preferring B, or no preference) can be easily derived. Traditionally, methods based on frequentist statistics can be used to analyze such preference data, but there are some limitations for the frequentist methods. Recently, Bayesian methods are considered an acceptable method by the US Food and Drug Administration to design and analyze device studies. In this paper, we propose a Bayesian statistical method to analyze the data from preference trials. We demonstrate that the new Bayesian estimator enjoys some optimal properties versus the frequentist estimator.     

区域经济集团化与全球贸易自由化的新视角

区域经济集团化对全球贸易自由化的影响不能一概而论 ,而是因区域经济集团内各成员的生产分工与贸易性质不同而有别 ,如果一个区域经济集团的建立是为了更好地发挥规模经济的效应 ,且集团内贸易以行业内贸易为主 ,那么这个集团将是开放的 ,它将促进贸易自由化的进程 ;如果一个区域经济集团是为获取比较优势 ,且其内部贸易形式主要为行业间贸易 ,那么这样的集团将是封闭的、排外的 ,会阻碍全球贸易自由化的进程。     

开放--中国历史的逻辑演进

当资本主义把一个分散的世界变成为一个统一的世界的时候,中国的封建王朝置身事外,一次次失去与世界同步的机遇.孙中山提出了开放主义的口号,但他无法带领中国走向世界.只有在中国共产党的领导下,在改革开放的战略方针指引下,中国才真正溶入世界发展的大潮中.历史经历了一个被迫开放、呼喊开放到主动开放的逻辑过程.     

Copula Density Estimation by Total Variation Penalized Likelihood

Copulas are full measures of dependence among random variables. They are increasingly popular among academics and practitioners in financial econometrics for modeling comovements between markets, risk factors, and other relevant variables. A copula's hidden dependence structure that couples a joint distribution with its marginals makes a parametric copula non-trivial. An approach to bivariate copula density estimation is introduced that is based on a penalized likelihood with a total variation penalty term. Adaptive choice of the amount of regularization is based on approximate Bayesian Information Criterion (BIC) type scores. Performance are evaluated through the Monte Carlo simulation.     

投资组合视角下机构投资者治理行为分析:一个权变的观点

作为独立于管理层与股东之外的第三方力量，机构投资者在提高公司治理水平方面一直被国内外学者和政府监管部门寄予厚望。然而，目前公司治理领域有关机构投资者治理角色研究尚存在有效监督、无效监督、战略合谋三种争论。为回答机构投资者在公司治理中究竟发挥何种作用的问题，文章以企业两类代理成本为切入点，从投资组合角度重新审视了机构投资者的治理行为，并结合不同内外情境解释了其参与治理行为的权变观点。基于委托代理理论和有限注意理论，利用2013-2017年我国沪、深A股上市公司样本数据。通过定义监督型机构投资者，从投资组合权重与投资组合集中度两个维度，采用固定效应回归模型实证检验了机构投资者对公司两类代理成本的影响，并运用工具变量法对结果进行稳健性检验，同时结合公司内外不同情境，借助分样本检验辩证分析了机构投资者的治理行为差异。研究结果表明：投资组合作为机构投资者分散风险的投资行为模式，在参与治理的过程中表现出了"双刃剑"效应，监督型机构投资者与投资组合集中度在降低大股东与中小股东之间第二类代理成本的同时，却以提升股东与管理层之间的第一类代理成本为代价。进一步从外部市场环境与内部高管、控股股东三个方面，发现机构投资者在不同情境下的治理行为存在差异，具体表现为在欠发达地区与存在强权高管的上市公司内，机构投资者加剧第一类代理成本的现象表现得更为明显；而公司内支持型控股股东的存在，则会加强机构投资者对第二类代理成本的抑制作用。上述研究运用权变的观点，实现了从以往关注机构投资者"持股数量"向"投资组合集中度"研究的创新性转变，在丰富机构投资者研究视角的同时，为以权变观点看待机构投资者治理行为的合理性提供依据。研究一方面能够帮助上市公司通过引入监督型机构投资者进行管理创新，提升其治理水平实现高质量发展；另一方面也为证监会创新监管模式，运用权变的观点充分认识机构投资者的治理行为，制定分类引导异质机构投资者的相关文件提供理论参考。