新中国成立70年来我国体育发展的经验启示及未来路径

采用文献资料和逻辑分析等研究方法，回顾新中国成立70年来我国体育发展历程和主要成就，总结历史经验为更好地发展中国体育事业提供智力支持。其发展历程可分为建国初期旧体育改造与人民"新体育"建设、社会主义建设初期的体育发展道路初探、"文革"时期的停滞不前与缓慢恢复、改革探索期的目标探究与路径探寻、改革建制期的体制改革与方式转型，以及改革攻坚期的体育强国新征程六个阶段。总结认为：我国体育发展的成功经验在于"四项坚持"，即坚持为人民服务的宗旨；坚持中国特色社会主义体育发展道路；坚持普及与提高相结合的发展方针；坚持改革创新的发展动力。步入改革攻坚的新时代，体育事业发展要始终坚持以下路径：加快体育强国建设步伐，提高体育在社会主义现代化建设中的战略地位；着力于发展攻坚的重点，解决中国体育发展不平衡不充分的首要问题；贯彻和落实"全民健身"和"健康中国"两大战略，满足人民群众幸福生活的根本追求；正确处理全民健身、竞技体育、体育产业和体育文化四者之间的关系和位置，克服倚轻倚重的苗头或弊端，促进各类体育事业融合发展。     

湖南杜鹃花属一新种

 Rhododendron shimenense Q. X. Liu et C. M. Zhang (Ericaceae) is described asnew from Hunan Province, China.     

研发费用加计扣除优惠强度、研发投入强度与企业价值R D Deduction Intensity,R D Intensity and Firm Value 王芸 陈蕾

研发费用税前加计扣除优惠政策是当前我国重要的技术创新优惠政策之一,目的是促使企业加大研发投入和自主创新能力的提升。以2011-2013年创业板高新技术企业所享受的加计扣除优惠政策为研究对象,选取托宾Q值作为企业价值的代理变量,考察企业享受加计扣除优惠政策是否能够提升企业价值。研究发现：加计扣除优惠强度可以显著提高企业价值;研发投入强度对加计扣除优惠强度与企业价值的关系起到了正向调节作用,特别在研发投入强度超过5%时,加计扣除优惠政策对企业价值的促进作用更加显著。研究结果为加计扣除优惠政策如何促进企业提高研发投入强度提供了有力证据。     

Dynamic Stackelberg games under open-loop complete information

Stackelberg games, which play extremely important roles in such fields as economics, management, politics and behavioral sciences, can be modelled as a bilevel optimization problem. There exist extensive literatures about static bilevel optimization problems. However, the studies on dynamic bilevel optimization problems are rather scarce in spite of the importance in explaining and predicting some phenomena rationally. In this paper, discrete time dynamic Stackelberg games with open loop complete state are revisited. An example, which comes from law field, is presented as an open-loop Stackelberg game to illuminate the rangy application of game theory. A property based on Bellman's equation is proposed without any restriction about inner point solution for open-loop Stackelberg games in this work. Moreover, we point out that open-loop Stackelberg games perform no better than both feedback and closed-loop dynamic Stackelberg games with complete information, which seems quite valuable to explain some social and economic phenomena.     

Contests for cooperation—A new approach in German innovation policy

A new approach in German innovation policy organizes contests of proposals for developing innovation networks. Based on an overview of the different programs, we investigate the advantages and problems of such an approach. We find that this type of policy may have a relatively large impact and can, therefore, be regarded as a rather efficient instrument of innovation policy. Compared to conventional policies, administration of the program is a much more critical issue. The contest approach may stimulate learning effects on the side of the administration but may also require a high degree of flexibility. The main disadvantage is the additional time that is required for conducting the contest. As a distinct ‘picking the winner’ approach, the contest approach is not suited as a means for achieving a leveling-out of regional welfare.     

赫斯特指数的分析与应用

基于重标极差(R／S)分析基础上的赫斯特指数(H)是用来描述和标度传统的有效市场假说(EMH)是否成立的一个指标，本文以我国深圳成分指数为研究对象，通过对深成指的赫斯特指数的研究，结果表明该股票指数遵循有偏的随机游走(分形布朗运动)而非传统的随机游走模式。     

榆林窟第25窟T形榜子再探

敦煌石窟中书写藏汉文字的T形榜子颇具时代特征,榆林窟第25窟八大菩萨曼荼罗造像中的T形榜子更具研究价值,有三个方面的问题需作研究:1.为什么榆林第25窟T形榜子仅出现在八大菩萨曼荼罗造像中?2.为什么该T形榜子中未写藏文?3.为什么主尊T形榜子中汉文题名清净法身卢舍那佛,而与主尊本身的大日如来形象不合?