大学计算机专业“基础原理”课的教学探讨

本文针对现代大学生学习计算机专业“基础原理”课程存在的种种客观问题,通过分析这些问题找出其中原因,并介绍对这些问题所采取的解决方案。教学实践表明,这些方案对学生学习“基础原理课”起到了较好的效果,提高了这类课程的教学质量。     

美国农业保护政策简介

农业是美国所有产业中竞争最激烈的产业之一 ,农业的激烈竞争主要是由进入“门槛”低所致。在 1981到 1990年期间 ,美国联邦政府花在农业上的补贴超过 2 50 0亿美元。价格补贴是美国农业保护政策的基础 ,成本补贴又使因价格补贴导致的市场过剩更加严重。对农民采取直接收入补贴政策的好处在于 :该政策能在不引起市场价格和农业产出扭曲的情况下 ,保证农民收入能达到一定水平     

高管持股与企业价值——基于利益趋同效应与壕沟防守效应的经验研究

本文以深交所78家民营上市公司为样本,从利益趋同效应和壕沟防守效应两方面研究了高管持股与企业价值的关系。与目前大多数相关研究不同,本文在计量高管持股比例时包括了高管人员通过间接方式持有的公司股权。本研究发现,高管持股比例不同引起的利益趋同效应和壕沟防守效应导致高管持股与企业价值之间呈显著的非线性关系。当高管持股比例在8%—25%之间,高管持股的壕沟防守效应占主导,而小于8%或大于25%时,高管持股的利益趋同效应占主导。研究结论对以激励为主要目的或以股权结构优化为主要目的的高管持股方案提供了经验证据。     

Myths and realities about input subsidies in sub‐Saharan Africa

Using a recent public expenditure dataset, this article proposes a ‘reality check’ of the level and composition of input subsidies in nine African countries between 2006 and 2013. Results show that input subsidies (1) received close to 35% of agricultural‐specific expenditure on average and (2) cover a variety of interventions, including investments in capital, such as on‐farm irrigation, and in on‐farm services, such as inspection or training. Further, the figures show that input subsidies tended to become entrenched in agricultural budgets over time, leading to sub‐optimal execution rates, and were primarily funded by the national taxpayer, while donors invested more in public goods. Findings confirm that input subsidies crowded out other spending categories likely to be more supportive of long‐term agricultural development objectives. The article concludes that the political economy of input subsidies should be directed to making more concrete efforts to attain a better balance of public expenditure on agriculture. Furthermore, policy‐makers should aim to increase the efficiency and policy coherence of input subsidies, since merely abolishing them is likely to be unfeasible in the short term.     

Corporate statement serving as information subsidies in the product-harm crisis

This study explores the attributes of a crisis statement which influence its utility as an information subsidy in the process of product-harm crises in China. Through investigating and analyzing 92 statements released in times of product-harm crises, the results show that the form in which the statement is released, and the length of the statement have significant effects on whether the statement will be quoted fully or partially by the news media.     

家电下乡政策的消费效应评估——基于全国221个村庄的4年跟踪调查

以全国221个村庄所获得的4年调查数据作为研究基础,对"家电下乡"政策的消费效应予以评估和分析。调查表明,家电下乡政策消费效应的最大特征是农民消费需求的释放,其中包括全国消费总额的上升,户均消费额增幅达到8成,全国各地消费总量和户均消费数量的增加。但家电下乡政策的消费效应在实践中也遇到了持续性疲软的难题,如农民收入的限制作用,农民购买下乡产品比重偏低,政府补贴额和补贴程序不足,政策宣传和解说不到位。为了使家电下乡政策的消费效应持续起效,必须不断完善政策,使家电下乡政策的实惠真正落实到农民身上。     

Conflicts of Interest in Academic Research: Policies,Processes, and Attitudes

Few studies have examined academic researchers' understandings of or attitudes toward conflict of interest policies even though these understandings and attitudes represent a crucial component of both compliance and educational efforts. This study reports the results of a large-scale, cross-sectional survey of research faculty at the nine campuses of the University of California regarding their understandings of and attitudes toward campus conflict of interest policies. We gathered information on their general assessments of investigators with financial ties to industry sponsors and reactions to the process of implementing conflict of interest policies at their respective campuses. We surveyed 1,971 faculty members from the nine-campus University of California system and had 779 responses (39% response rate). The sampled faculty were in the ten departments with the most number of financial disclosures at each campus. We utilized the WebSurveyor software to create a secure, online, 21-item survey. Our study reveals faculty with complex, sometimes contradictory, feelings about academic-industry relationships and highlights perceived gaps in policy and process. Most respondents were concerned about unlimited financial relationships, but a sizable number also viewed campus policies as irrelevant. Some expressed considerable anger over the process of policy implementation, rejecting the policies on the basis of professional and individual self-determination and moral integrity. Our study suggests the need for renewed efforts to encourage awareness of the relevance of conflict of interest policies for all faculty, new efforts to increase understanding of the situational nature of conflicts of interest, and a reexamination of the processes of policy implementation at the campus level.     

中国的地位身份分析——兼论中国国家利益诉求范围

只有在充分认识自身实力的基础上与国际社会中其他国家进行比较,国家的实力地位身份才能正确定位。通过纵向和横向比较,中国的地位身份可以界定为:快速崛起的具有影响力的发展中社会主义大国,但中国的国家利益诉求和辐射范围仍然以亚太区域为主。     

我国新型农村社会养老保险经济支持能力研究

老农保的失败让人们对新农保充满期待的同时也存有几分担忧,他们担心农民的经济承受力。更怕财政不堪重负。为坚定领导层试点、推广新农保的信心和决心,加快新农保发展步伐,本文在测算新型农村社会养老保险的经济负担的基础上,对农民个人和政府两方面的经济支持能力进行分析,认为只要制度设计合理,农民个人和政府是有能力承担这部分支出的。     

利益集团与社会管理:挑战与出路

利益集团显性化是当前我国经济社会发展过程中的一个突出现象。与阶级阶层分化相比,集团利益分化有着不同的特点。它的产生客观上要求一种新的社会管理方法来协调和化解不同集团间的利益分歧、矛盾和冲突。当前,我国尚处于"有利益集团现象,但无利益集团政治"的阶段。既有的利益集团管理仍沿袭社团管理的理念和方法,本质上是政治控制型管理和精英吸纳型管理在利益集团问题上的应用,不能适应我国集团利益分化的现状和特点。为此,要改革现有的社团管理体制,并构建与社团管理体制相衔接的利益集团管理。