One of us? Reaction formation and inclusion as a strategy in the ethnic state

Many states question how to manage burgeoning migration. This is particularly problematic for ethnic states whose foundation myths imagine the state as the home for the nation. In this paper, we argue that ethnic states engage a type of defense mechanism, ‘reaction formation’, as part of migration policy to distract attention from threats to the claimed ethnic homogeneity that undergirds the reason for the state's existence. Using Israel as a case of a planned ethnic state, we show how a state develops a spectrum of membership models to incorporate ‘others’ into the nation-state. We suggest that Israel could conceivably devise some arrangement to incorporate the several hundred thousand labor migrants currently resident there. We argue that the state is reluctant to recognize these migrants as ‘Israeli’ because to do so would reveal a hidden truth: Israel may be becoming more Israeli than Jewish and, thus, the recognition of labor migrants and their children provokes questions about Israel's very reason for existence, that is, being a Jewish state.     

The Effect of Product Development Restructuring on Shareholder Value

This article examines the effect of product development restructuring (PDR) on shareholder value. The results are based on a sample of 165 announcements made during 2002–2011. PDR announcements are associated with an economically and statistically significant positive stock market reaction. Over a two‐day period (the day of the announcement and the day preceding the announcement), the mean (median) market reaction is 1.63% (0.87%). The market reaction is generally positive regardless of the PDR purpose or action. Although the market reaction is more positive for higher R&D intensity firms, it is not directly affected by the firm's prior financial performance or whether the firm's primary PDR objective is to increase revenues or cut costs. However, the interaction between the firm's prior financial performance and its primary PDR objective is significant. For firms that are financial outperformers, the market reaction is more positive if the firm's primary PDR objective is to increase revenues. For financial underperformers, the market reaction is more positive if the firm's primary PDR objective is to cut costs.     

市场反应对盈利预测信息后续披露行为的影响——基于中国沪深A股的经验证据

以2006--2009年为研究窗口,选取在沪、深交易所上市的公司（仅限于发布业绩预告的上市公司）作为样本进行实证研究。结果表明：管理者在自愿披露盈利预测时并非仅仅因为好消息或坏消息来决定披露意愿,还要考虑市场是否合理反映了先前披露的信息;管理者首次披露盈利预测习性越早,其披露盈利预测意愿越强。     

低浓度三分子模型局域定态耗散结构

考虑反应物 A的反应和扩散机制 ,研究了低浓度三分子模型局域定态耗散结构 .结果表明 ,在低浓度条件下局域化学振荡和化学波现象也可能产生     

论民族文化互动的特点及本质

民族间的文化互动无时不在,然而对文化互动的特点及本质的认识经历了一个历史过程。本文从文化运作的实质出发,分析了文化互动的特点,提出了文化互动的耦合运作的观点。进而对丈化互动的本质进行探讨,认为文化互动是一个对等的持续过程,是一个从无序到有序的不断调适过程,是民族间相互吸收相互借鉴的过程,
从而形成了“你中有我,我中有你”的人类不可孤立存在的局面。     

"多学科渗透教学法"的探索与实践

本文提出了多学科渗透教学法。初步的探索与实践表明,多学科渗透教学法可以激发学生的学习兴趣,开阔学生的视野,丰富学生的知识,提高学生的整体素质,取得较好的教学效果。     

关于我国企业竞争活动反应特性的相关关系研究

本文通过对竞争活动特性的实证分析论证了竞争反应数量及竞争反应迟延与各竞争特性、企业性质以及部分行业之间的关系。结论认为:一项竞争活动影响竞争者的数量以及该活动对于竞争者的战略重要性与竞争反应数量和速度呈正相关关系;战略活动和高竞争执行条件与竞争反应数量和速度呈负相关关系,相反,战术活动和低竞争执行条件却与竞争反应数量和速度呈正相关关系;国有企业对于竞争活动的反应无论从速度和数量上都低于私有企业。     

基于高校知识三角的产学研协同创新实证研究——自组织视角

产学研协同创新体现了系统集成的思想,本文以协同学为基础,从自组织理论视角分析了高校创新能力在产学研协同创新过程中的动态演化规律。研究表明:复杂性科学可以有效地解决公共管理问题的不确定性,本文以具有自组织特征的"B-Z"反应模型为基础,建立了高校知识生产能力、知识传播能力和知识转移能力构成的Logistic模型,通过稳定性分析与仿真模拟,讨论了高校三个能力子系统在产学研协同创新过程中的演化规律,并进一步确定了主导能力要素的序参量模型,并且对我国31所高校在产学研协同创新过程中的演化规律进行了验证性实证分析。本文的研究为我国研究型大学通过调整内部能力结构促进产学研协同创新提供了定量的分析视角与科学的政策讨论依据。     

上市公司经营业绩在动量效应形成中的作用

为探讨上市公司经营业绩在动量效应形成中的作用,通过利用产业与资本市场的资产定价模型分解股票收益,按照三种收益水平构造动量投资组合并考察收益在持有期的表现,结果发现,经营业绩的横截面差异是形成动量与反转效应的必要条件;股票市场交易行为在不同时期对经营业绩的反应过度和反应不足促成了收益的动量与反转效应的形成。     

试述化学反应速率与温度的关系

论述了化学反应速率与温度的关系,推导了可逆放热反应的最佳反应温度与转化率的一般关系,讨论了可逆放热催化反应的最佳反应温度不仅与转化率有关,还与催化剂的活性大小有关。