Channel design,coordination, and performance: Future research directions

The marketing literature has made significant progress toward a better understanding of how firms can effectively design and manage their channels of distribution. However, the complexity of today’s channel systems raises additional issues that remain unaddressed. The purpose of this article is to suggest promising research directions in this domain. We suggest several possible avenues to relate multiple channel design and management to channel-system, channel-relationship, and customer-level outcomes. In particular, we see a great opportunity to integrate multichannel customer management and traditional channel design research. We argue that future research should account for cross-level effects and incorporate variables at more than one relationship level.     

教育活动基本要素之关系探讨

教育者、受教育者和教育内容是教育活动的三个基本要素,这三个要素可以组成几种截然不同的关系,从教育活动的发生、实际展开过程以及追求的目标和结果三个方面来分析,教育者和受教育者的关系仅仅是教育活动的伴生性关系,而受教育者和教育内容才是教育活动的核心关系。     

提高教学质量的主客观条件剖析

提高教学质量是教育事业永恒的主题。本文通过对教学质量的基本概念及特点的论述 ,提出提高教学质量的主观条件主要是人 ,即教师、学生和管理者 ,提高教学质量的客观条件主要有政策条件、经济条件、环境条件、教材条件、教育技术条件和管理条件 ,并且使主、客观条件形成最佳配置 ,发挥最优效果 ,培养出适应新时期要求的高质量人才。     

浅析中小企业信息化建设策略

文章根据中小企业实施信息化的现状和基础管理工作薄弱、观念落后、人才缺乏、员工素质偏低、资金实力有限等特点,提出了中小企业实施信息化建设的五大策略和措施。     

在220kV电力工程施工电流互感器的故障分析

由于使用时间超年限、生产质量以及使用方法不善等原因导致的电流互感器故障,是220kV电力工程施工中极大的安全隐患。电流互感器发生故障最严重的会直接引起爆炸,从而严重威胁施工人员及周边人民群众的生命财产安全。本文将就电流互感器常见的故障进行详细分析,并阐述杜绝隐患的措施与方法。     

Option market making under inventory risk

We propose a mean-variance framework to analyze the optimal quoting policy of an option market maker. The market maker’s profits come from the bid-ask spreads received over the course of a trading day, while the risk comes from uncertainty in the value of his portfolio, or inventory. Within this framework, we study the impact of liquidity and market incompleteness on the optimal bid and ask prices of the option. First, we consider a market maker in a complete market, where continuous trading in a perfectly liquid underlying stock is allowed. In this setting, the market maker may remove all risk by Delta hedging, and the optimal quotes will depend on the option’s liquidity, but not on the inventory. Second, we model a market maker who may not trade continuously in the underlying stock, but rather sets bid and ask quotes in the option and this illiquid stock. We find that the optimal stock and option quotes depend on the relative liquidity of both instruments as well as on the net Delta of the inventory. Third, we consider an incomplete market with residual risks due to stochastic volatility and large overnight moves in the stock price. In this setting, the optimal quotes depend on the liquidity of the option and on the net Vega and Gamma of the inventory.      

Housing prices and the optimal time-on-the-market decision

This paper provides a model for housing prices based on a seller solving the optimal time-on-the market problem. Given the seller’s optimal time-on-the market, analytical expressions are provided for both the expected time-on-the-market and the sales price. These expressions facilitate the computation of comparative statics. Consistent with economic intuition, we show that (i) both the expected time-on-the market and sales price decrease as interest rates increase, (ii) the expected time-on-the market increases and the expected sales price decreases as offer activity declines, and (iii) the expected time-on-the market and expected sales price both increase as the list price increases.     

基于MATLAB的多媒体辅助教学系统构建初探

通过MATLAB的程序设计功能、数值计算功能和图形界面功能来设计及实现微积分中的概念、运算和定理直观演示的相关问题.提出了通过功能设计、算法与程序设计和结构设计,实现一个多媒体辅助教学系统的构建思路.     

On hierarchical competition in oligopoly

In this paper, we consider a hierarchical oligopoly model, in which firms compete on quantities of an homogeneous product. We provide a proof and an interpretation that under the three necessary and sufficient conditions of linear aggregate demand, constant and identical marginal costs, the strategy of leaders at any stage depends neither on the number of leaders who play after nor on the number of remaining stages. So, all firms behave as Cournotian oligopolists on the residual demand. We show that these three assumptions are not only sufficient but also necessary. Any departure from any of these assumptions rules out this property.     

数码商品广告中的隐喻及其蕴含的文化价值观

在探讨隐喻的运行机制和感知的基础上,文章将数码商品广告中的常见喻体分类整理并探讨其中所蕴含的文化价值。研究结果发现:自由、生活、成功、爱情、美、梦想、智慧、世界、自然、永恒是数码商品广告中的常见喻体;数码商品广告中的隐喻与中国特定的文化传统有着紧密的联系,即使是最时尚商品的广告也折射出最传统的文化价值观。