农资连锁经营应急机制下车辆调度研究

连锁经营,作为农资流通领域的新模式,逐步取代了原本散乱的农资零售格局。物流配送活动作为连锁经营理念的核心,是农资连锁经营能够成功运作的关键。但由于农业生产对农资产品的特殊要求,当消费者对农资产品有紧急需求,但就近的连锁店铺不能供货时,会给农业生产带来不利影响。本文引入应急概念,构建了应急车辆调度模型,来实现配送中心对企业配送系统内部各节点的库存的协调,使该连锁店能够快速响应消费者需求。     

有效需求波动、国有商业银行调整刚性与外资银行经营规模的选择

本文建立了一个有效需求水平不确定情况下的两阶段混合寡占博弈模型．前瞻性地讨论了国有商业银行的经营规模表现出调整刚性的情况下，外资银行经营规模的选择、其实际想要吸收的均衡存款量与选定经营规模之间所存在的关系．以及这种关系将会带来怎样的宏观经济与社会福利后果等问题。研究发现：（1）当实际中的有效需求水平越低时，外资银行经营规模的“产能”过剩；（2）当实际中的有效需求水平越高时，外资银行经营规模的“产能”不足。这一发现具有实施促进经济增长、有效控制居民收入差距政策方面的理论含义。     

Mixed up? that’s good for motivation

We show that career concerns can arise in the absence of ex ante uncertainty about an agent’s type, if his unobservable actions influence future productivity. Implementing effort in mixed strategies allows the principal to endogenously introduce uncertainty about the agent’s ex post productivity and generate reputational incentives. Creating such ambiguity can be optimal for the principal, even though this exposes the agent to additional risk and reduces output. This finding for an environment with imperfect commitment contrasts with standard agency models, where implementing mixed strategy actions typically is not optimal if pure strategies can also be implemented.     

做市商制度对我国新三板市场的影响

场外交易市场建设初期,做市商制度在各国家及地区得到普遍应用。随着市场规模的扩大,交易制度逐步演变为混合性做市商制度。2014年我国新三板市场引入做市商制度,通过对市场整体以及协议转让、做市转让两类股票样本进行比较,文章认为在政策推动、市场主体积极参与等因素作用下,新三板市场整体规模、流动性均得到快速提高,做市商制度在流动性改善、价值发现等方面具有重要作用,挂牌公司具有较强的差异性对分层管理提出了现实需求。提高流动性仍然是新三板市场的重要任务之一,文章认为需要从制度、需求、供给、监管四个方面进行采取积极措施。     

公司治理与银行成长之关系探讨(上)——兼论我国银行公司治理的建构

经过20多年的改革以后,我国银行业终于将改革的重点置于"建立和完善良好的银行公司治理".本文从公司治理与银行经营绩效的内在逻辑关系出发,比较分析了不同公司治理模式及其特征,从理论上阐述了公司治理的本质以及加强公司治理建设的重要性,并针对我国银行公司治理面临的诸多现实挑战,提出了相关策略建议.     

我国道路交通事故社会救助基金实施问题的思考

新交法规定我国实行机动车第三者责任强制保险制度,设立道路交通事故社会救助基金,目的在于加强对交通事故受害人的保护。随着《机动车交通事故责任强制保险条例》的生效实施,机动车交通事故强制责任保险制度开始运行并发挥作用,但是与之配套的道路交通事故社会救助基金制度的相关立法却尚未到位。本文拟在分析道路交通事故社会救助基金功能、立法现状的基础上,借鉴发达国家立法经验,对我国道路交通事故社会救助基金管理机构的设立及运行提出建议。     

Price versus quantity in a mixed duopoly with foreign penetration

We characterize the endogenous competition structure (in prices or quantities) in a differentiated duopoly between a public firm that maximizes domestic welfare and a private firm that can be owned by domestic or foreign investors. The market for which they compete can be domestic or integrated: in the first case Bertrand competition emerges endogenously and in the second case Cournot competition can emerge if the fraction of domestic consumers in the integrated market is low enough. We also determine the optimal degree of foreign penetration showing the optimality of a partial foreign ownership. Finally, we extend the model to increasing marginal cost confirming the robustness of the results.     

Quality and Welfare in a Mixed Duopoly with Regulated Prices: The Case of a Public and a Private Hospital

Abstract. Hospital markets are often characterized by price regulation and the existence of different ownership types. Using a Hotelling framework, this paper analyses the effect of heterogeneous objectives of hospitals on quality differentiation, profits and overall welfare in a price‐regulated duopoly with exogenous symmetric locations. In contrast to other studies on mixed duopolies, this paper shows that, in this framework, privatization of the public hospital may increase overall welfare. This holds if the public hospital is similar to the private hospital or less efficient and competition is low. The main driving force is the single‐regulated price which induces under‐provision (over‐provision) of quality of the more (less) efficient hospital compared with the first best. However, if the public hospital is sufficiently more efficient and competition is fierce, a mixed duopoly outperforms both a private and a public duopoly due to an equilibrium price below (above) the price of the private (public) duopoly. This medium price discourages over‐provision of quality of the less efficient hospital and – together with the non‐profit objective – encourages an increase in quality of the more efficient public hospital.     

A Method to Evaluate Mode Effects on the Mean and Variance of a Continuous Variable in Mixed‐Mode Surveys

Les enquêtes à mode de collecte mixte, dans lesquelles le choix du mode de réponse est laissé aux personnes interrogées, sont de plus en plus répandues. Cette possibilité du choix du mode de réponse peut induire une confusion entre deux sortes d'effets : les effets de sélection et les effets de mesure. L'estimation séparée de ces deux effets est impossible à partir des seules données d'une enquête à mode de collecte mixte. Dans cet article, nous montrons comment la même estimation devient possible à partir d'une comparaison entre les résultats d'une enquête à mode de collecte mixte et ceux d'un enquête à mode de collecte unique basées sur le même questionnaire. La méthode que nous proposons permet d'estimer l'effet du mode de réponse sur la moyenne et la variance d'une variable de réponse continue. Elle est illustrée par l'estimation des effets du mode de réponse sur six questions relatives aux opinions vis‐à‐vis des enquêtes.     

Moments of Compound Mixed Poisson Distributions

Recursive formulae are derived for the evaluation of the moments and the descending factorial moments about a point n of mixed Poisson and compound mixed Poisson distributions, in the case where the derivative of the logarithm of the mixing density can be written as a ratio of polynomials. As byproduct, we also obtain recursive formulae for the evaluation of the moments about the origin, central moments, descending and ascending factorial moments of these distributions. Examples are also presented for a number of mixing densities.