企业社会责任履行视角下的林业投资特点及模式

基于企业社会责任内涵和实现机制的分析,指出林业投资和社会责任履行的耦合性,体现在林业投资综合效益和社会责任内涵及林业投资自身与社会责任投资的一致性上。分析了林业投资的特点和综合效益,实例测算表明林业投资的生态和社会效益远超经济效益,印证了林业投资是企业履行社会责任的可行方式。分析了社会责任履行视角下不同企业的林业投资模式,指出林业企业可结合战略性社会责任和林业核心社会责任,参与与其能力相匹配的投资项目;非林企业可以基于社会责任投资理念参与商业性林业投资项目,基于回应性社会责任投入参与公益性林业投资项目。建议政府通过创新林业经营模式、完善社会责任制度建设和加强社会舆论宣传,引导林业和非林企业加大林业投资。     

专题：当代美学的政治转向

现代美学的诞生是一个在艺术、哲学、政治三者之间混杂的存在。但长期以来,美学的主要危机在于,它几乎一直被作为自律性的艺术理论而备受指责,而其与西方现代性筹划之间的混杂关系也多被视作政治浪漫派的乌托邦梦想。因此,现有的审美政治思考一般以“美学”作为反向的起点,其中,以韦尔施为代表的认识论美学、以法兰克福学派为核心的否定美学、以审美意识形态批判为基础的后现代文化研究和马克思主义美学,构成了“反美学”的主要路径,同时也形成了审美政治的几种基本关系模式。近年来的回归美学的思潮,再次将美学推至浪漫主义和哲学美学的原生性场景,一种以平等为核心的审美共同体视域将成为审美政治的新的理论生长点。     

古道、古文、古式:宋代文学复古的方式

宋代的文学复古和儒学复兴是一个统一的文化运动,都是以恢复和绍述儒家文化为明确的主题的。在这样的文化语境下,宋代文人的理论和创作的实际情况尽管复杂,但从复古的方式上看,主要就是内容上对“道”的极端强调、语言形式上崇尚质朴平淡、体裁上重视散体文和古体诗等。     

重审教育现代化进程中的人文向度

作为外力冲击下的被动型现代化,中国教育现代化进程带有明显的追赶心态,失却了本土文化自觉,承载着过重的外在功利负荷。重温本土意义上的教育现代化探索之路,审视教育本体并聚焦人的健康成长,探寻科学教育与人文教育的辩证关系,有助于理性反思教育现代化进程中的人文向度,以期为当代教育改革提供必要的历史借鉴。     

考虑学习效应的可复用物流容器供应链的最优运作决策研究

本文研究了单个制造商通过可复用物流容器将产品送至单个零售商的闭环供应链,在可复用物流容器回收处理后得到的数量小于发出时数量的条件下,本文考虑可以通过工人操作过程中存在的学习效应来降低可复用物流容器的丢弃率。本文构建了两个模型：模型1未考虑维修中心工人操作过程中存在的学习效应,可复用容器的丢弃率为随机变量;模型2考虑维修中心工人在操作过程中存在学习效应,使得可复用物流容器的丢弃率不断降低。通过定量分析确定了最小联合库存总成本下的最优运行周期、货物配送次数以及可复用容器配送次数。结果表明,在任一供应链参与者不采取降本措施的情况下,仅考虑工人在操作过程中存在的学习效应就可以起到降低容器丢弃率、节约总成本的效果。此外,本文还分析了制造商可以支付给工人的最大维修费用,为企业的成本投入预算提供决策依据。     

The origin of semilingualism: Nils-Erik Hansegård and the cult of the mother tongue

‘Semilingualism’ is one of the most questionable theories produced in the language sciences. Yet, little is known about its origins. We present a critical account of the history of semilingualism, tracing its roots in the work of Nils Erik Hansegård, (1918–2002), inaugural chair of Sámi at Umeå University (1975–1979), who developed a theory of semilingualism (halvspråkighet) in the 1960s. We show how Hansegård theorized semilingualism using ideas from Nazi German linguistics, producing an unforgiving theory of linguistic pathology directed at minoritized bilinguals in Sweden's far north.     

Extreme value and cluster analysis of European daily temperature series

Time series of daily mean temperature obtained from the European Climate Assessment data set is analyzed with respect to their extremal properties. A time-series clustering approach which combines Bayesian methodology, extreme value theory and classification techniques is adopted for the analysis of the regional variability of temperature extremes. The daily mean temperature records are clustered on the basis of their corresponding predictive distributions for 25-, 50- and 100-year return values. The results of the cluster analysis show a clear distinction between the highest altitude stations, for which the return values are lowest, and the remaining stations. Furthermore, a clear distinction is also found between the northernmost stations in Scandinavia and the stations in central and southern Europe. This spatial structure of the return period distributions for 25-, 50- and 100-years seems to be consistent with projected changes in the variability of temperature extremes over Europe pointing to a different behavior in central Europe than in northern Europe and the Mediterranean area, possibly related to the effect of soil moisture and land-atmosphere coupling.     

中国商品期货回报与现货价格变化测度研究——基于便利收益模型的视角

本文基于便利收益模型(CYM)的视角推导出商品期限结构、期货回报并对期货回报进行分解。选取我国三个商品期货交易所相关数据作为样本,对我国商品期货回报与现货价格变化进行测度研究。研究发现,在样本期内,商品期货回报和现货价格变化之间不存在密切关系;以展期收益或预期现货价格变化为条件的商品风险溢价具有时变性;平均展期收益反映了现货价格变化对风险溢价的预期偏离;期货期限结构、便利收益和展期收益准确地预测了现货价格变化。上述研究结果为我国商品期货回报与现货价格变化的测度和管理以及商品期货投资决策设计提供了一些有帮助的理论借鉴和操作性较强的方法选择。     

The origins of the public debt of Italy: Geographically dispersed interests?

In this paper we reconstruct the macro regional government deficits of Italy and find that the aggregate deficit resulting from our estimates captures quite well the entire dynamics of the Italian national public deficit. This new data set shows that the ultimate cause of the accumulation of public debt of Italy lies in the extraordinary fiscal imbalance of the Southern regions. The new data allow us to test empirically a simple Common Pool model, augmented by a variable measuring the political influence of each macro region in the Government, to verify the existence of a geographically dispersed interests issue for the Italian case. Our measure of political influence turns out to significantly explain the regions’ deficits also when controlling for population and income gaps. In addition, using a J-test approach, we find that including the predictions of the Common Pool–Pork Barrel regional model into a general model of the Italian national deficit turns out to greatly increase its explanatory power. The results call for deep institutional reforms of the fiscal decentralization so far implemented in Italy.     

基于量价关系的股票价格分布模型探析

基于量价关系,用交易量的分布解释收益率的分布情况。分别探讨了预期交易量、非预期交易量与收益率之间的关系,发现交易量和收益率有明显的正相关关系;收益率对预期交易量以及非预期交易量都有解释作用,但无论是预期交易量还是非预期交易量对收益率都没有显著的解释作用,但是从统计量分布上看,前者的分布能够解释后者的分布。