Managing inventory with two suppliers under yield uncertainty and risk aversion

In this paper, we consider a single-product single-period inventory model in which the retailer can source from two suppliers. The primary supplier is cheaper but unreliable in the sense that it generates supply yield uncertainty, whereas the secondary supplier is perfectly reliable but more expensive. The reliable supplier's capacity is fixed and the retailer cannot order more than the quantity reserved in advance. We study the problem in the context of a risk-averse retailer who has to determine the optimal order quantity from the primary supplier and the optimal reserved quantity from the secondary supplier. We develop the model in the perspective of a low risk averse retailer and quantify the risk via an exponential utility function. We show by numerical experiments how the resulting dual sourcing strategies differ from those obtained in the risk-neutral analysis. We also examine the sensitivity of some model-parameters on the optimal decisions.     

“双循环”新发展格局下我国生产性服务业价值链嵌入与路径优化

本文提出“双循环”新发展格局下我国产业发展需要重塑价值链,力求在供给侧实现从高增速向高质量转换,在需求侧实现从外循环向内循环转换,在动力侧实现要素驱动向创新驱动转换。要立足现实需求,加快发展生产性服务业,助力经济高质量发展,加速内外循环优化以及创新驱动价值链攀升。遵循“加强价值链整合、推动融合化发展”“打造多层次载体、推动集聚化发展”“扩大服务业开放、推动国际化发展”“提升核心竞争力、推动高端化发展”“加快服务业创新、推动高质量发展”的路径,促进生产性服务业向价值链高端延伸。     

股权二元结构下的股利政策--一种新的代理成本理论

本文基于股权二元结构建立了新的代理成本理论，发现并度量了分配现金股利的“再分配效应”——导致价值在流通股与非流通股之间转移，说明分配现金股利可能是大股东对流通股股东的掠夺行为。再分配效应揭示了股权二元结构的缺陷，有助于解释股利分配的一些实证现象，为现金股利的“利益输送”假说提供了理论基础。本文提出的配股一分红策略可以实现非流通股间接上市的目的。     

新兴经济体与后金融危机时代IMF改革

全球金融危机爆发之后,国际货币基金组织不成功的援助措施使各国要求加快其改革进程。同时国际金融体系也在危机后重组,新兴经济体作为新兴力量在世界经济格局中崛起。新兴经济体成为一支独立的联合力量,并在IMF改革中提出自身的主张,要求获得更多话语权。新兴经济体由于其强大的经济实力和发展中国家的支持,促使发达国家依赖其进行IMF改革。同时,新兴经济体在参与IMF改革中也面临发达国家的压力,综合实力对比与金砖国家之间关系均影响着新兴经济体的合作。     

三重二元结构下的人口流动模型：对民工荒的一个新的研究框架

传统的人口流动模型建立在单一的城乡二元经济基础之上,不完全适合解释中国的人口流动问题,尤其不能解释民工荒现象。本文依据中国特殊的城乡和区域双重二元经济以及城乡二元社会结构下人口流动的特殊性,对传统人口流动模型进行修正,建立了新的人口流动模型,并以此分析我国产生民工荒现象的原因,提出解决民工荒问题的政策建议。     

中国城乡收入差距形成的宏观机制分析——中国存在Kuznets倒“U”曲线吗

理论与实证分析表明,决定城乡收入差别的宏观因素主要包括经济发展程度、城乡劳动力负担差异程度与城乡劳动生产率差异。其中,城镇劳动力负担、城乡劳动生产率差距与城乡收入差距负相关,农村劳动力负担与城乡收入距正相关,经济发展程度与城乡收入差距存在倒“U”型关系。为此,要缩小城乡收入差距就需要在继续促进经济快速稳定发展中,坚持市场化改革的方向与现有人口政策,以规模化、科技化和产业化推动传统农业升级,提升农村劳动生产率。     

中国的劳动收入份额为什么趋于下降?——基于二元经济模型的观察与解释

新古典经济学的要素分配理论以劳动力是稀缺资源作为其前提假设,与我国二元经济条件下的现实情况存在较大差距,因而在分析我国劳动收入份额下降时解释力不足。文章修正了新古典经济学的劳动力稀缺要素假定,基于劳动力无限供给假定的二元经济模型和中国数据表现出的异质性特征,建立了一个分析二元经济中劳动收入份额影响因素的理论框架,并运用该理论框架解释了中国劳动收入份额趋降的原因,提出促进劳动密集型技术进步、提高人力资本禀赋、审慎干预劳动市场等方面的政策建议。     

论分权背景下的中国垂直管理体制——概况、评价及其完善建议

垂直管理是我国上下级管理体制中的一个重要现象。作为中央对地方、上级对下级进行调控的重要手段,这个现象在中国有不断被强化的趋势。文章认为,为规范垂直管理工作,一要合理划分上下级权限,调动两个积极性。二要设置合理的垂直管理体系,加强对垂直部门的管理。三要转变政府职能,实施科学的干部考评体系。四要推行扁平化治理,扩大下级、基层政府的自主权。     

Which Products are More Responsive to In-Store Displays: Utilitarian or Hedonic?

In-store displays aim to boost sales of both utilitarian and hedonic products. Noting typical differences in the information processing and purchase behavior evoked by these product types, and building on congruency theory principles, the authors propose that different types of in-store displays (i.e., island, end-of-aisle, or shelf signage) are more appropriate for utilitarian versus hedonic products, and the use of price or product promotions might reinforce these effects. With a database that combines three data sources (scanner, observational, and survey), this article presents an analysis of a market share model at the SKU level. The results confirm that in-store displays have differential effects on sales, depending on their characteristics; congruency between the decision-making process of utilitarian versus hedonic products and the characteristics of in-store display types moderates their effectiveness in terms of SKU sales. Shelf signage strongly increases the sales of utilitarian products, whereas island and end-of-aisle displays increase sales of hedonic product categories more effectively. The use of congruent promotions creates synergistic influences that reinforce these effects. In particular, price promotions improve the impact of shelf signage on utilitarian products, and product promotions strengthen the impacts of island and end-of-aisle displays on hedonic products. These results extend prior research on in-store marketing actions and the nature of utilitarian versus hedonic products, as well as providing recommendations for retailers and manufacturers seeking to optimize their retail space and commercial budgets.     

Fairness perception of ancillary fees: Industry differences and communication strategies

This study examines fairness perception of ancillary fees across different industries, and ways to communicate ancillary fees in a way that reduces customers' feeling that they are being unfairly treated. Through surveys and consumer experiments, we show that consumers’ perception of fairness decreases as the level of ancillary fees increases, with differences across industries. Also, when the customer is given a cue that the ancillary fees are necessary for low base prices, fairness perception increases, explained by the “dual entitlement” concept. Another effective communication strategy is early disclosure, as opposed to late disclosure which decreases fairness perception and willingness to recommend.