Manufacturer's optimal pricing and lot-sizing policies under trade-credit financing

In the year 2006, Teng et al considered an appropriate economic production quantity (EPQ) model in which the manufacturer receives the supplier's trade credit and provides trade credit to the customer simultaneously. The following two payment methods were discussed by Teng et al: The main purpose of this paper is summarized below: Finally, with a view to further motivating the interested researchers for using the methodology and mathematical analytic techniques in several other contexts in the field, we have chosen to include, in Section 12, a number of related recent works in the field.     

基于数据包络分析方法的上市银行盈利效率研究

银行是我国金融市场的主导力量。银行的一举一动对金融市场,乃至整体经济运行均有重要的影响。特别是在经济进入新常态,金融深化改革的新环境下,研究银行的效率,既是银行发展的内在需要,也是宏观经济的必然需求。本文基于银行所有者的角度,以资本金和不良贷款作为投入,利息收入和非利息收入作为产出,测算2015年16家上市银行的盈利效率,结果表明:上市银行盈利的纯技术效率普遍较高,规模效率受规模因素影响较显著;国有商业银行的规模效率低,导致其技术效率偏低。对于大型银行,规模已经成为影响盈利技术效率的重要因素之一。     

Profit optimization for cattle growing in a randomly fluctuating environment

A class of stochastic differential equation models was applied to describe the evolution of the weight of Mertolengo cattle. We have determined the optimal mean profit obtained by selling an animal at the cattle market, using two approaches. One consists in determining the optimal selling age (independently of the weight) and the other consists in selling the animal when a fixed optimal weight is achieved for the first time (independently of the age). The profit probability distribution can be computed for such optimal age/weight. For typical market values, we observed that the second approach achieves a higher optimal mean profit compared with the first one, and, in most cases, even provides a lower standard deviation.     

基于价值创造和长短期业绩相结合的经营者薪酬契约研究

目前,经营者薪酬契约设计大都以会计盈余为业绩标准、以当期业绩(短期业绩)为计量依据,容易诱发经营者的短期博弈行为。本文以价值创造为业绩标准,并将长短期业绩相结合设计经营者薪酬契约,得出如下几点结论:(1)垄断行业经营者的努力水平低于竞争性行业,并且垄断盈余比例越大,经营者的努力程度越低。为调动经营者积极性,需要在垄断行业内部引入竞争机制。(2)剩余分享比例越大,经营者的努力程度越高;单位努力成本越大,经营者越趋向于选择较低的努力水平;能力较强的经营者通常选择较高的努力水平。因此,企业应择优选择经营者,为其创造最佳的工作环境和条件,灵活设计经营者剩余分享比例,以提高经营者的工作努力程度。(3)竞争性行业经营者短期博弈行为远远高于垄断行业,以价值创造为基础并将长短期业绩相结合设计经营者薪酬契约是明智的选择。     

面向两类客户的双渠道采购库存控制策略

采用排队分析技术,构建基于利润最大化的库存控制模型来考察零售商面向两类客户需求的环境下,双渠道采购库存控制策略.首先,建立了库存水平状态稳态概率分布的平衡方程,并推导出其稳态概率分布以及作为构建系统利润函数的稳态性能指标.然后,建立系统利润最优化模型,并设计改进的遗传算法.最后,通过数值实验考察系统库存控制策略以及参数的敏感性.     

垄断型企业实施质量追溯体系的决策研究——基于消费者对产品质量风险认知的不确定性

针对消费者对可追溯产品认知和企业实施质量追溯体系动力均不足的问题,建立数学模型分析了当消费者对产品质量风险认知不确定时,垄断型企业未实施与实施质量追溯体系的生产行为决策,包括产品价格,企业预期利润,比较了不同情况下消费者预期效用和社会预期福利,并进行了数值检验.得出垄断型企业在追溯成本满足相应条件时才会实施质量追溯体系,以及何种情况下企业预期利润,消费者预期效用和社会预期福利更高等主要结论和建议.     

行政垄断程度与行业效率相关性的SPSS分析

本文选择行政指标及垄断指标对39个工业行业的行政垄断程度进行测度;利用资本、劳动、技术等指标对工业行业效率定量分析;对行业的行政垄断程度与行业的效率之间的相关性探究,并得出结论两者之间呈倒U型关系;最后提出行业行政垄断管制的重点。     

NATURAL RESOURCE MODELING: ALLOWING FOR INCONSTANT PROBABILITY OF DETECTION AND FREQUENCY MEASURES OF VIOLATION WITHIN DYNAMIC DETERRENCE FISHERY MODELS

Abstract. The dynamic deterrence model (DDM) represents an analytical framework widely used for analyzing compliance with fishery regulations aiming for sustainable fishery management. However, applications of the DDM have so far been limited to the case of constant probability of detection that assumes independence of the length of time to detection. This paper modifies the DDM to allow for more flexible and broader specification by introducing, for the first time, two important variables to the supply of offences function, namely evasion activity and enforcement efforts and accommodating inconstant probability of detection specifications. Determinants of probability of detection are specified and important potential extensions of the modified DDM are discussed in this paper. The relative magnitude of the effects of each of these determinants on probability of detection, however, remains an important empirical question that requires further investigation for prioritization of policy actions.     

虚拟组织收益分配的博弈分析

运用博弈分析的方法,对虚拟组织的收益分配问题进行了深入的研究,指出了绝对收益分配差距对合作伙伴总收益的影响,阐述了虚拟组织动态博弈条件下,收益分配应满足的条件,论证了按投入比例分配收益的不利影响,以及均分投入与收益的不现实,提出了全面认识弱势合作伙伴投入的价值,打破按投入比例分配收益对虚拟组织的意义.