基于设计艺术学的三维CG课程建设

三维CG课程既为学习设计艺术提供强有力的技术工具,也对学生的思维方式产生重要影响。应当把这门课程的建设作为一项系统工程,在正确的目标定位基础上,根据不同专业和不同专业方向的实际需要,理顺课程的知识体系、精心选择合适的教学内容与教学方法,营造良好的学习环境,使之成为一门精品课程,并以此推进设计艺术学科的数字化提升。     

能源约束对经济增长的“阻尼效应”研究——以重庆市为例

工业化和城市化加剧了经济发展对能源的依赖性,使经济增长受能源约束的影响日益突出。在对生产函数一般性设定的基础上,推导了能源约束对经济增长阻尼效应的测算公式;通过建立扩展的C-D生产函数和CES生产函数模型,运用偏最小二乘(PLS)回归方法对生产函数进行估计,实证检验重庆市1978—2011年能源约束对经济增长的阻尼效应。研究发现:在C-D和CES生产函数中,能源约束对经济增长的阻尼系数分别高达5.06%和4.53%,阻尼效应非常显著,证实了经济发展对能源消耗的强依赖性。为此,从产业结构调整、能源结构调整、技术创新和人力资本开发等方面,提出了促进经济发展转型、实现经济增长与节能减排协调发展的对策建议。     

Dollar appreciation,deficit stimulation,and the new protectionism

This article probes whether contemporary U.S. protectionism arises from an appreciating dollar. It concludes that (a) an enrich-thy-neighbor policy of upvaluation has transformed the current U.S. economic recovery into an engine of global recovery; (b) flexible exchange rates continually equilibrate the balance of payments as evidenced in changed domestic—relative to foreign—prices, as well as in capital movements induced by interest-rate differentials resulting from exchange-rate shifts; and (c) flexible exchange rates automatically alter so as to maintain a country's competitive position in the world economy even when facing deficits at home and abroad.     

COMMON COMPONENTS OF RISK AND UNCERTAINTY ATTITUDES ACROSS CONTEXTS AND DOMAINS: EVIDENCE FROM 30 COUNTRIES

Attitudes towards risk and uncertainty have been indicated to be highly context‐dependent, and to be sensitive to the measurement technique employed. We present data collected in controlled experiments with 2,939 subjects in 30 countries measuring risk and uncertainty attitudes through incentivized measures as well as survey questions. Our data show clearly that measures correlate not only within decision contexts or measurement methods, but also across contexts and methods. This points to the existence of one underlying “risk preference”, which influences attitudes independently of the measurement method or choice domain. We furthermore find that answers to a general and a financial survey question correlate with incentivized lottery choices in most countries. Incentivized and survey measures also correlate significantly between countries. This opens the possibility to conduct cultural comparisons on risk attitudes using survey instruments.     

研发能力、市场竞争与上市物流企业创新绩效提升 ——基于TOE框架的组态分析

通过整合TOE框架,以80家上市物流企业为样本,利用模糊集定性比较分析法fsQCA,研究上市物流企业产生高与非高创新绩效的组态路径,分析三重层面因素影响上市物流企业创新绩效的驱动和抑制路径。结果发现,在5条产生高创新绩效和4条产生非高创新绩效的组态路径中,均存在三重层面之间的替代关系。其中,高创新绩效有“创新-竞争驱动型”“研发-竞争驱动型”“三重层面并驱型”和“结构-竞争驱动型”4种不同模式,且在4种模式中均存在市场竞争势力的共性因素;企业研发能力和市场竞争势力均为核心变量,在促进上市物流企业创新绩效中发挥着至关重要的作用。     

Posting Signs on the Bog: Fixing and Unfixing H.D., Imagiste

This article aims to reassess the modernist poet H.D.'s early poetry and to challenge certain critical readings of the early poetry in relation to H.D.'s expression of self. It argues that H.D.'s Sea Garden should not be dismissed as a false start, as a place where H.D. was trapped in a restrictive imagist aesthetic, but that the dramatic lyric as used in this collection of poetry enabled her to explore her bisexual self in multiple and multiplying (not split) selves, as both in a state of flux and as enduring through time. It examines H.D.'s work alongside other writers such as Tennyson and Woolf, drawing out common metaphorical structures and patterns and suggests that Woolf and H.D. in particular, were producing literary forms and representations which provide a radical challenge to processes of categorization—a challenge to the notion of category itself.     

中间品贸易自由化如何影响企业研发投入：来自我国微观企业层面的证据

为探究中间品贸易自由化对企业研发投入产生的影响,我们利用关税数据、2000-2006年的规模以上的工业企业数据、中国海关产品层面的贸易数据共三套数据,将其合并后,先后采用基准固定效应、倾向得分匹配法和双重差分倾向得分匹配法进行检验,得到一致估计结果：中间品贸易自由化的不断推进有效地促进了企业研发投入。随后,我们利用逐步检验法估计中介效应,探讨了中间品贸易自由化影响企业研发投入的机制路径,结果表明中间品贸易自由化可以通过侵蚀企业利润、提高企业出口规模和加剧市场竞争间接促使企业提高研发投入,带动产业转型升级。本文的结果可以为中国当前的贸易自由化政策提供参考依据。     

融资结构、创新阶段与企业创新投入

认为激励技术领先企业的突破性技术创新和先进适用技术在技术相对落后企业的推广和应用,是目前科技创新研究的重点和热点.从企业资本结构角度入手,分析不同融资渠道对企业创新投资决策的影响,并研究企业所处创新阶段对上述关系的调节.认为处于较高创新阶段的企业,其股权融资占比与创新投入呈正相关关系;处于较低创新阶段企业的债权融资占比与技术创新投入呈正比;除"创造技术阶段"企业外,营运资本对企业R&D投资均体现出显著的平滑作用,并提出了相关的政策建议.     

苏北农村地区老年人生命质量及影响因素分析

目的：了解江苏省北部地区农村老年人生命质量状况及其影响因素,为相关政策的制定与执行提供参考依据。方法：采用欧洲五维健康量表（EQ-5D量表）和自制调查问卷,对苏北四市农村地区1 889名老年人进行调查,分析农村老年人生命质量状况,探讨其影响因素。结果：苏北农村地区老年人EQ-VAS平均得分为（71.3±16.7）分,老年人对其行动能力、自我照顾能力、焦虑或抑郁的评价较高,满意率分别为75.2%、83.2%和78.2%;而对疼痛或不舒服以及日常生活能力的评价相对较低,满意率分别为56.2%和72.9%。年龄、经济收入、婚姻状况、患慢性病情况、居住方式等均可影响老年人生命质量状况。结论：苏北农村地区低收入、独居的空巢老年人需要更多关怀,政府应加强农村老年居民慢性病健康管理,完善农村社会保障制度,为老年人提供一个健康和谐的养老环境。     

Social pressure in the stadiums: Do agents change behavior without crowd support?

Social pressure may have relevant consequences in many contexts but it is hard to evaluate it empirically. In this paper we exploit a natural experiment in soccer to provide clear evidence of its effects. We aim to study how social pressure from the crowd in a stadium affects both players and referees. While in normal matches crowd support may be correlated to a host of variables affecting the outcome of interest, we exploit the fact that after the health emergency for the Covid-19 pandemic in 2020, soccer matches in top European Leagues have been allowed only behind closed doors, that is, without spectators in the stadiums. We use data of first and second division of five major European Leagues (Germany, Spain, England, Italy and Portugal) for the last 10 seasons and compare – using a differences-in-differences analysis – several outcomes (determined by players’ performance and referees’ decisions) of matches played with crowd support to the same outcomes when matches were played without crowd. We find considerable effects of the pressure from the crowd: while with the support of the crowd a considerable home advantage emerges in various measures of performance (points, goals, shots, etc.), this advantage is almost halved when matches are played behind closed doors. Similar effects are found for the behavior of referees: decisions of fouls, yellow cards, red cards and penalties that tend to favor home teams in normal matches, are much more balanced without the crowd pressing on referees. The evidence we provide strongly supports the idea that social pressure has intense effects on agents’ behavior.