基于资源风险的战略联盟结构模式选择

综合考虑各种资源的特性以及从风险产生的基础和决定风险的根本因素是公司投入的 资源的角度,提出将资源和风险整合,分析战略联盟的结构模式选择问题. 通过对资源、风险、 战略联盟的结构模式分类,建立了反映资源—风险—结构模式选择三者间关系的概念模型及 其相关的判断假说,并运用因子分析及结构方程的方法对所提出的假说进行验证. 研究结论认 为:资源、风险和战略联盟结构模式的选择偏好之间确实存在着紧密的联系. 公司管理者对战 略联盟结构模式选择偏好受到管理者对未来公司在战略联盟中风险的主观评价的影响,而公 司对战略联盟投入的资源是影响公司对风险主观评价的重要因素.     

On Modeling Wood Formation Using Parametric and Semiparametric Regressions for Count Data

Understanding how wood develops has become an important problematic of plant sciences. However, studying wood formation requires the acquisition of count data difficult to interpret. Here, the annual wood formation dynamics of a conifer tree species were modeled using generalized linear and additive models (GLM and GAM); GAM for location, scale, and shape (GAMLSS); a discrete semiparametric kernel regression for count data. The performance of models is evaluated using bootstrap methods. GLM was useful to describe the wood formation general pattern but had a lack of fitting, while GAM, GAMLSS, and kernel regression had a higher sensibility to short-term variations.     

非使役化中英语动词的语义选择研究

非使役化中,从使役动词到作格动词的转换,原生及物动词同时受到三种语义选择限制:其一,动词包含"使役义([+cause])"特征;其二,动词是动态动词,表示状态变化;其三,动词的外因可以通过句法(为降级题元,充当介词的补语)或语用(为暗指题元)手段判别.     

切换电容器用接触器选用探讨

文章针对并联电容器接入电网时产生的巨大电流容易造成接触器触头熔焊问题,提出设计专门的切换电容器用接触器,并探讨了设计和选用切换电容器用接触器时应满足的几个条件和原则.     

Waiting time to exhaust lottery numbers

Questions related to lotteries are usually of interest to the public since people think there is a magic formula which will help them to win lottery draws. This note shows how to compute the expected waiting time to observe specific numbers in a sequence of lottery draws and show that surprising facts are expected to occur.     

Simultaneous structure estimation and variable selection in partial linear varying coefficient models for longitudinal data

Partial linear varying coefficient models (PLVCM) are often considered for analysing longitudinal data for a good balance between flexibility and parsimony. The existing estimation and variable selection methods for this model are mainly built upon which subset of variables have linear or varying effect on the response is known in advance, or say, model structure is determined. However, in application, this is unreasonable. In this work, we propose a simultaneous structure estimation and variable selection method, which can do simultaneous coefficient estimation and three types of selections: varying and constant effects selection, relevant variable selection. It can be easily implemented in one step by employing a penalized M-type regression, which uses a general loss function to treat mean, median, quantile and robust mean regressions in a unified framework. Consistency in the three types of selections and oracle property in estimation are established as well. Simulation studies and real data analysis also confirm our method.     

清代词学文献的整理和研究

清代词学理论文献的主要形式有词话、词选、论词诗词、词律词韵、序跋批注、书札专论文等。本文分别评介了清代词学文献诸种形式的特点以及近年来学界研究的进展。     

《美国悲剧》：从克莱德的三段感情经历看其伦理选择

《美国悲剧》描述了其主人公克莱德为了追求上流社会生活,不惜牺牲爱情和尊严,最终因杀人而被判死刑的人生悲剧。从文学伦理学批评角度解读《美国悲剧》,分析克莱德在与霍旦斯、罗伯塔和桑德拉三段感情交往中的伦理选择,及其中所呈现出的兽性因子与人性因子的斗争过程,能够更加清晰地看到克莱德悲剧的内在本质。     

我国农业现代化的现实水平及战略选择

农业现代化的实现,不仅是一个现代生产要素引入和技术进步的过程,同时还是要素优化配置和制度创新的过程。这一进程是一个由量变到质变的复杂转化过程。在现代市场经济条件下,农业现代化的水平以及所而临的主要矛盾与在传统计划经济条件下是不相同的。因此,我国农业现代化而临适合我国国情的战略选择。     

论家族企业发展中的技术选择及其社会控制

家族企业的勃兴是我国当前一个重要的经济现象。技术选择及其社会控制是关系到家族企业能否适应激烈的市场竞争，实现可持续发展的关键环节。处于发展初期的我国家族企业还存在相当的局限性，在技术选择中具有诸多不甚完善的特征。家族企业发展中在技术选择方面应特别注意四个方面的问题，另外，对家族企业技术选择和运用进行社会控制是很有必要的。