论外层空间活动争端的解决机制

联合国制定的有关外空条约及原则宣言对和平解决外层空间争端做出了原则性的规定。但这些规定本身存在着一些问题。对于如何构建外层空间活动争端的解决机制存在着不同的构想。各国应当共同努力,在现有的争端解决机制的基础上,对外层空间活动争端 的解决做出补充和完善。     

无边落木萧萧下——读《野鬼的年代》

平行关系是国家谱系与社区空间发生关联的机制线索。然而,这个包围社区的外来的国家魅影,替换为户外的陌生的野鬼的造访,说是一种“国家的谱系学”。在这样的时代条件下,野鬼是一种空间的中介,弥合了社区与国家之间的物理关系,人们在喂养、哺育的生育经验中既诓骗鬼,又招待鬼,直到将其送走……正如作者所说：驱邪仪式是一种精妙的精神艺术。驱邪仪式负担着责任与压力、威胁与恐惧,也许,与傈倮坡的人一同加入送行的路线,为的是接受特殊的仪式治疗,放开记忆之手。     

Joint product assortment,inventory and price optimization to attract loyal and non-loyal customers

In this paper, we analyze the emerging retail practice of carrying a combined product assortment consisting of both regular “standard” products and more fashionable and short-lived “special” products. The purpose of this practice is to increase store traffic by attracting heterogeneous classes of customers, which drives up sales of standard products due to the potential cross-selling effect. Customers who are primarily attracted by special products will also buy some standard products. In this context, we analyze three decisions that are crucial for a retailer׳s commercial success: the product assortment, the inventory levels and the pricing. We propose an optimization model and an iterative heuristic to analyze the trade-offs between the combined product assortment, the inventory level and the price per product when there is limited shelf space. Using numerical experiments, we show that our heuristic can be trusted and that its accuracy improves when the number of products increases. Our findings indicate that to attract more customers for standard products, a retailer may benefit from carrying low priced special products which, if considered in isolation, would be non-profitable. As the cross-selling effect decreases, a retailer should focus more on the standard assortment by increasing its size and decreasing the prices. However, introducing special products and ignoring the cross-selling effect may decrease a retailer׳s profitability. We show that the introduction of special products involves more than just choosing the right specials for non-loyal customers but impacts the global assortment planning, the standard products and the products pricing.     

Policy Space: What,for What,and Where?

This article examines how developing countries can use, and enlarge, existing policy space, without opting out of international commitments. It argues that: (i) a meaningful context for policy space must extend beyond trade policy and include macroeconomic and exchange‐rate policies that will achieve developmental goals more effectively; (ii) policy space depends not only on international rules but also on the impact of international market conditions and policy decisions taken in other countries on the effectiveness of national policy instruments; and (iii) international integration affects policy space through several factors that pull in opposite directions; whether it increases or reduces policy space differs by country and type of integration.     

广告语篇连贯形成的动态模式分析

指出作为一种特殊的交际形式,广告语篇具有隐含性特点,因此,其连贯也呈现出鲜明的特征,即其连贯是隐性的;广告语篇连贯的形成过程是一个语言使用者不断建立心理空间的动态过程。     

浅谈民族地区人才培养和使用

人才的成长和人才作用的发挥 ,其作用不仅需要个人的努力 ,而且需要一定的物质条件 ,更需要一种能激励人才成长和发展的社会文化氛围。为此 ,必须改变传统的人才观念 ,坚持任人唯贤的原则 ,改革一切不合理的规章制度 ,建立积极、公开、平等、有效的人才竞争机制 ,使人才个性和才能都得到充分的发展和施展。     

花儿会:二元结构下的特定时空--试作花儿会上回族群众的角色转换的分析

回族群众在花儿会上,不同于日常世俗生活的表现说明,花儿会是回族社会生活中二元结构下的特定时空。在这个特定时空里,回族群众完成了角色转换,以弥合现实生活和精神心理上的矛盾。     

纳西族空间观念之色彩表象

空间是抽象的 ,只有对它们进行具体的表象 ,才能将抽象还原成具体。无论在纳西族民俗中 ,还是在其他民族的民俗中 ,色彩常常成为对空间方位进行表象的具体手段之一。由色彩所表象的空间不仅决定着民俗活动的性质 ,也规范着民俗活动的形式与内容。本文从前空间、原空间等方面对纳西族民俗中空间的色彩表象作了介绍和分析     

Temporal Disaggregation: Methods,Information Loss,and Diagnostics

This research provides a generalized framework to disaggregate lower-frequency time series and evaluate the disaggregation performance. The proposed framework combines two models in separate stages: a linear regression model to exploit related independent variables in the first stage and a state–space model to disaggregate the residual from the regression in the second stage. For the purpose of providing a set of practical criteria for assessing the disaggregation performance, we measure the information loss that occurs during temporal aggregation while examining what effects take place when aggregating data. To validate the proposed framework, we implement Monte Carlo simulations and provide two empirical studies. Supplementary materials for this article are available online.     

网络空间的重组与分化：以微信朋友圈为例

在网络化时代引发的诸多变迁中,社会空间的生产变革具有独特的意义。区别于工业社会的社会空间,网络空间呈现出独有的空间特征：缺场空间的“脱域”特质,蕴含网络权力逻辑的流动性,兼为民主政治领域和私人交往领域的赛博空间。微信朋友圈从空间的视角维系和重塑了网络社会的社会关系,并在其发展中不断生产着社会性的空间,塑造了个体化趋势和圈子文化并存、公共空间和私人空间属性兼备、虚拟空间和现实空间融合与再生产的社会空间。微信朋友圈以中国化的方式生产出本土性的互联网公共空间,彰显了网民的能动性,创造了别样的空间生产逻辑和公共价值。