仓库物资装卸最优性方案的选择

军队后方仓库是军用物资装备的储备基地，是军队物流系统的一个重要环节。如何利用现有条件，提高日常乃至战时仓库的收发、存储能力和工作效率，是提高军队后勤保障能力的一个重要课题。本文对仓库物资装卸中的几个主要技术经济指标进行探讨分析。     

创业女性:要事业还是要家庭?

对这个问题的回答，无外乎三种答案：一是更看重事业；二是更看重家庭；三是家庭和事业兼顾。     

东亚经济一体化与粤台经贸关系探讨

2005年4月以来,台湾各界纷纷访问大陆;而“连宋”访问大陆后,台湾当局的政治取向仍不明朗,其后果将会是阻碍两岸经贸关系的发展,使台湾经济面临着边缘化的可能。当前,粤台双方应该顺应时代潮流,加强经贸合作,推动两岸经济一体化,尽快融入东亚区域经济整合的格局之中。     

Improved estimation of portfolio value‐at‐risk under copula models with mixed marginals

Portfolio value‐at‐risk (PVAR) is widely used in practice, but recent criticisms have focused on risks arising from biased PVAR estimates due to model specification errors and other problems. The PVAR estimation method proposed in this article combines generalized Pareto distribution tails with the empirical density function to model the marginal distributions for each asset in the portfolio, and a copula model is used to form a joint distribution from the fitted marginals. The copula–mixed distribution (CMX) approach converges in probability to the true marginal return distribution but is based on weaker assumptions that may be appropriate for the returns data found in practice. CMX is used to estimate the joint distribution of log returns for the Taiwan Stock Exchange (TSE) index and the associated futures contracts on SGX and TAIFEX. The PVAR estimates for various hedge portfolios are computed from the fitted CMX model, and backtesting diagnostics indicate that CMX outperforms the alternative PVAR estimators. © 2006 Wiley Periodicals, Inc. Jrl Fut Mark 26:997–1018, 2006     

贯彻钢铁产业政策走科学发展之路

时光荏苒，钢铁行业不知不觉又沐浴在2006年的春光之中。从2004年以来国家陆续出台宏观调控政策，到2006年年初的平衡过渡，钢铁行业跨越了由风声鹤唳到有惊无险的历程。     

长丰模式：实现品牌回报产生复合效益

2005年的中国电视节目（包括电视剧）市场已经渐入“整合营销时代”的佳境，电视节目的制作者、投资者不再单纯追求资金回报，而是更加关注电视节目与商业品牌以节目及相关活动为平台，通过整合营销传播手段实现品牌回报、产生复合效益。     

外贸生意难做是价格竞争引起的吗

外贸生意越来越难做了。如何看待这种现象？有人说，这是由于在高度竞争压力下的角色变形；也有人说．为了减少成本．大家都走捷径．最终导致恶意价格竞争。还有人说．企业不论大小．核心问题是要发展．增强市场竞争的能力。[编者按]     

默认盗版——软件商不愿意说出口的营销策略

如果我说有些国际名的软件商默认盗版，甚至鼓励盗版，一般人可能不太相信。但这却是一个事实，不仅是事实，而且是软件商非常成熟的一种营销策略。本正是要揭示这一商业秘密，并分析这一营销战略的利弊及由此造成的社会影响。     

Continuous extension of preferences

We consider the problem of extending preferences from a subset of a commodity space to the entire space. It is a simple consequence of the Tietze extension theorem that continuous preferences can be extended if they are defined on closed subsets of a normal space and are representable by utility functions. We show the following: If the space is a non-separable metric space, then extension of preferences is not always possible. In fact for (path-connected) metric spaces, extension property, utility representation property, and separability are equivalent to each other.