A Graphical Tool for Interpreting Regression Coefficients of Trinomial Logit Models

Multinomial logit (also termed multi-logit) models permit the analysis of the statistical relation between a categorical response variable and a set of explicative variables (called covariates or regressors). Although multinomial logit is widely used in both the social and economic sciences, the interpretation of regression coefficients may be tricky, as the effect of covariates on the probability distribution of the response variable is nonconstant and difficult to quantify. The ternary plots illustrated in this article aim at facilitating the interpretation of regression coefficients and permit the effect of covariates (either singularly or jointly considered) on the probability distribution of the dependent variable to be quantified. Ternary plots can be drawn both for ordered and for unordered categorical dependent variables, when the number of possible outcomes equals three (trinomial response variable); these plots allow not only to represent the covariate effects over the whole parameter space of the dependent variable but also to compare the covariate effects of any given individual profile. The method is illustrated and discussed through analysis of a dataset concerning the transition of master’s graduates of the University of Trento (Italy) from university to employment.     

The context of employment discrimination: interpreting the findings of a field experiment

Although field experiments have documented the contemporary relevance of discrimination in employment, theories developed to explain the dynamics of differential treatment cannot account for differences across organizational and institutional contexts. In this article, I address this shortcoming by presenting the main empirical findings from a multi‐method research project, in which a field experiment of ethnic discrimination in the Norwegian labour market was complemented with forty‐two in‐depth interviews with employers who were observed in the first stage of the study. While the experimental data support earlier findings in documenting that ethnic discrimination indeed takes place, the qualitative material suggests that theorizing in the field experiment literature have been too concerned with individual and intra‐psychic explanations. Discriminatory outcomes in employment processes seems to be more dependent on contextual factors such as the number of applications received, whether requirements are specified, and the degree to which recruitment procedures are formalized. I argue that different contexts of employment provide different opportunity structures for discrimination, a finding with important theoretical and methodological implications.     

坚持尊重社会发展规律与尊重人民历史主体地位的一致性——关于党的根本宗旨的哲学思考

把握党的根本宗旨 ,只有从历史规律实现的特殊性上理解人民的历史主体性与从人民的历史主体性上把握历史发展的规律的统一中 ,从马克思主义真理观是与价值观的统一中 ,才能深刻理解“党要始终代表中国最广大人民的根本利益”的真理性 ;实践党的根本宗旨 ,必须在坚持尊重社会发展规律与尊重人民历史主体地位的一致性的基础上 ,坚持为崇高理想奋斗与为最广大人民谋利益的一致性 ,坚持完成党的各项工作与实现人民利益的一致性 ,坚持一切为了人民群众与一切依靠人民群众的一致性。     

论唐湜的诗歌理论

唐湜诗歌评论的理论价值主要凸现在三个方面:一是在新诗的形式问题上,主张寓自由于格律之中,通过节奏与韵律来制约自由化,把自由化与格律化辩证统一起来;二是在新诗的审美追求上,认为新诗诗美的化境是走向意象的凝定;三是对诗歌含蓄美的倡导和肯定。这三个方面对于新诗的建设至今仍有现实意义。     

高速SDRAM控制器设计的FPGA实现

同步动态存储器(SDRAM)控制器通常用有限状态机实现,对于一般的设计方法,由于状态数量多,状态转换通常伴随大的组合逻辑而影响运行速度,因此,SDRAM控制器的速度限制了SDRAM存储器的访问速度。该文从结构优化入手来优化方法,利用状态机分解的思想将大型SDRAM控制状态机用若干小的子状态机实现,达到简化逻辑的目的,不仅提高了速度还节省了资源,对该类大型SDRAM控制器的实现有一定参考意义。     

三螺旋创新模式的理论探讨

基于非线性网状创新模型提出的“三螺旋场”和“三螺旋循环”概念进一步推进了三螺旋创新模式的理论研究。三螺旋场概念旨在解释在大学、产业和政府三股螺旋之间存在的相对独立和彼此作用的本质，说明三螺旋的生成原理、静态表现和动态演化特征。三螺旋的生成原理在于创新过程的非线性本质和多主体特征，静态表现为“内核外场模型”，而动态演化过程则在于纵向进化和横向循环。发生在三股螺旋之间的三螺旋循环揭示了在大学、产业和政府之间以人员、信息和产品流动为特征的相互作用和运行机制。     

电子商务立法的国际比较及对我国的启示

电子商务的迅速发展实质性地改变了传统市场交易的形式。而作为法律调整和规范的主要对象之一，交易形式的变化要求有新的法律规定与之相适应。在国际上，关于电子商务的立法活动已经形成了一种浪潮。而我国的电子商务立法工作却一直进展缓慢。其中有认识上的问题，更主要的是立法经验的不足。借鉴有关国家电子商务立法的先进经验，我国应当尽快建立和完善电子商务法制，这其中包括应当建立关于电子签名、电子商务认证、电子合同、电子支付等方面的法律规则与制度。     

实数域及四元数除环上有平方根的方阵

给出了实数域及实四元数除环上方阵有平方根的充分必要条件．     

企业会计模式的构建

现代企业制度是市场经济的基础,它要求建立与之相适应的会计模式.会计模式的建立受经济环境的制约,又要解决实际问题.在此分析的基础上,重点从客观经济环境和企业特点出发,从会计管理制度制定,会计信息系统设置和会计监督机制建立三大方面构建企业会计模式.     

高校实验室管理与评估

本文阐述了在评估工作的推动下 ,如何加强对实验人员队伍建设、建立和完善各种规章制度的管理 ,并对实验室评估工作做了科学的总结。