Design of limited-stop bus service with capacity constraint and stochastic travel time

This paper develops a mathematical model for the optimal stopping design of limited-stop bus service, which allows each bus vehicle to skip some stops. To better reflect the reality, this paper considers the vehicle capacity and stochastic travel time. Also, vehicles are all allowed to skip stops whereas any stop is not allowed to be skipped by two consecutive vehicles. A hybrid artificial bee colony (ABC) and Monte Carlo method is developed to solve the optimal stopping strategy. Finally, the model and solution method are validated by a numerical example, and a sensitivity analysis is performed on the passenger demand.     

Optimization of postal express line network under mixed driving pattern of trucks

Details about the movement of trucks on postal express lines are investigated to improve the performances of mail distribution. A mixed driving pattern of trucks is introduced to minimize the transportation cost of a postal express line network with a service level requirement. We formulate this problem as a mixed p meeting depots location with shipment scheduling problem and build a MINLP model. A two-level tabu search procedure based on shipment grouping method is developed. Through a series of computational experiments and sensitivity analysis on different instances, some managerial insights of the network under mixed driving pattern are revealed.     

Enhancing online brand experiences: An application of congruity theory

Providing a distinctive brand experience is critical to differentiate each hotel brand from others, due to the intangible characteristics of the hotel industry. Rooted in congruity theory, this study investigated how three congruities (i.e., self-image congruity, online–offline brand image congruity, and value congruity) influenced customers’ online brand experiences and their brand trust. Results from this study indicated both self-image congruity and online–offline brand image congruity significantly influenced both customers’ online brand experiences and their trust toward the hotel's brand. Extending brand experience literature and congruity theory, this study suggested hotels should develop a strategy that could capture these three congruity effects in online and offline channels because these effects should be key determinants for customers’ online brand experiences and their responses.     

股票价格服从分数布朗运动的再装期权定价

未定权益的定价是金融工程研究的前沿与热点问题。本文在标的资产的价格服从分数布朗运动的假设下,在风险中性条件下,运用鞅方法,导出了再装期权的定价公式。     

汽车维修接待学习领域的设计

汽车维修接待工作是汽车维修企业经营管理的重要组成部分。从提高维修接待人员的培养质量出发,进行汽车维修接待学习领域的设计,将该岗位人才培养的全部课程分为基本素质群、专业基本技能群、岗位能力群三大块,并具体分析这三大块课程的课程设计、教学方法和保障条件。     

《产业组织经济学》课程创新性教学研究

产业组织经济学课程兼具理论性和应用性的特点,这一特点决定其教学方式可以采取更加丰富多彩的形式,相对于传统"重理论、轻应用"的教学方法,讨论式、案例式、情景式、实践式等创新性教学方法,更适应发展的需要,既能培养学生的创新思维能力,又能使学生主动参与,改善教学效果。     

建筑工程预结算与审核方法探讨

建筑工程造价的预结算审核是控制工程整体造价的重要方法,其方法的选择和审核的准确度对工程的质量和经济效应来说尤为重要,本文对建筑工程造价预结算的重要性、审核内容以及审核方法进行了初步的探讨。     

价值工程在煤矿井下排水中的应用

运用价值工型原理,优选井下排水方案节约投资915.87万元,同时缩短建井工期一年,可减少利息支出3161.9万元.     

The expected real return to equity

The expected return to equity – typically measured as a historical average – is a key variable in the decision making of investors. A recent literature uses analysts' forecasts, investor surveys or present-value relationships and finds estimates of expected returns that are sometimes much lower than historical averages. This study extends the present-value approach to a dynamic optimizing framework. Given a model that captures this relationship, one can use data on dividends, earnings and valuations to infer the model-implied expected return. Using this method, the estimated expected real return to equity ranges from 4.9% to 5.6% . Furthermore, the analysis indicates that expected returns have declined by about 3 percentage points over the past 40 years. These results indicate that future returns to equity may be lower than past realized returns.     

流通领域重点监测商品品类的筛选方法——以深圳为例的静态研究

在市场蓬勃发展、商品品种繁多、流通渠道多样的情况下,采取有效的方法确定需要重点进行质量监测的商品范围将有助于工商行政管理部门履行好国务院赋予的流通领域商品质量监测职能。本文以深圳为例介绍了一种静态的筛选方法。