信息不对称下价格随机的应急数量折扣契约研究

以市场需求和市场价格随机波动的二级供应链为研究对象，寻找其在信息不对称条件下绩效优化的路径。通过显示原理分别构建生产成本和销售成本信息不对称时应急供应链的数量折扣契约模型，得到最优订货量与最佳批发价策略。通过具体的算例加以验证，分析了信息不对称程度对供应链上成员及整个供应链绩效的影响。研究结果表明：当突发事件造成市场价格随机波动和市场需求变化时，供应链上的跟随者能从隐瞒私人信息中获利。但当市场需求增大时，整个供应链绩效受损，反之则反是。这与以往研究在市场需求随机、市场价格固定和信息不对称条件下的结论迥异。     

基于供求关系的房价波动分析

基于1999—2017年中国35个大中城市的面板数据，构建基于供求关系的面板回归模型，从国家和区域两个层面对造成房价波动的原因进行探究。结果表明:价格预期在全国和区域模型中均对房价有显著的正向影响，且在大多数地区，其影响力大于其他因素；人口对房价有正向影响，但只在北部沿海、东部沿海和南部沿海显著；收入对南部沿海、黄河中游和西南地区的房价均有显著的正向影响，而在北部沿海、东部沿海、长江中游、西北地区和东北地区，该因素对房价的影响并不显著；除全国和西南、西北地区外，房屋造价作为成本因素对绝大多数地区的房价有正向影响；信贷的可获得性作为政策因素对房价有正向影响，除南部沿海和黄河中游外，在其他区域均显著；住宅开发投资与住宅价格呈负相关关系，但其只在少数经济发达地区显著。因此，未来对房地产市场的调控应根据区域房价波动影响因素的不同区别对待，因地制宜。     

Moving On From Supportive Housing (MOSH): Development and evaluation of a transitional skill-building curriculum for providers helping residents exit homeless services

This article describes the development and evaluation of MOSH (Moving On From Supportive Housing), a transitional skill-building curriculum for providers helping residents exit homeless services to mainstream housing without embedded supports. In this evaluation, we assess the feasibility, acceptability, fit, and potential efficacy of the MOSH curriculum to improve proximal provider-level outcomes, including self-efficacy to provide MOSH-related independent living skills and supports. Homeless-services providers (N = 49) from a range of programs and settings participated in the training. Findings from focus groups and pre- and posttest surveys indicate high levels of overall satisfaction with the training. The majority of trainees perceived the training to be useful to their work and potentially useful for service recipients, felt the training would fit well within their existing day-to-day work, and said they were very likely to use MOSH skills in such work. Statistically significant improvements in self-efficacy regarding all skills but one were also found. MOSH holds promise as an intervention that can enhance provider practice and promotion of independent living skills in homeless services. Although these initial findings on MOSH are encouraging, further research will be needed to evaluate provider knowledge gains and effective use of these skills in practice.     

基于优先权拍卖的产能分配机制研究

本文考虑一个供应商和两个独立零售商构成的供应链系统。当供应商的产能受到约束时，零售商可能会竞争有限的产能。本文提出将“优先分配权”作为一个有价值的标的物进行拍卖，按照出价高低确定优先分配顺序。本文证明了优先权拍卖机制属于共同价值模型，并提出了两类拍卖机制：事先拍卖和事后拍卖。本文证明两类优先权拍卖机制均会促使零售商提交真实的需求作为订单量，并且满足收益等价定理。而就供应商期望利润而言，事后优先权拍卖机制要高于事先优先权拍卖机制。     

Reproducing authoritarian neoliberalism in Turkey: urban governance and state restructuring in the shadow of executive centralization

ABSTRACT

The implosion of popular struggles against the erosion of economic and democratic rights in the Middle East has thrown into sharp relief the co-constitutive character of neoliberal reforms and authoritarian state practices. This article zooms in on this relationship, and traces the consolidation of a core component of authoritarian statisms by examining how the ruling AKP government in Turkey has facilitated executive centralization. This process refers to a form of state restructuring whereby key decision-making powers are increasingly concentrated in the hands of the central government while democratic avenues to contest government policies are curtailed through legal and administrative reforms, and the marginalization of dissident social forces. I unpack the mechanisms of executive centralization in Turkey by exploring the transformation of urban governance under AKP rule, which has promoted a spectacular degree of state-led commodification of land and housing while simultaneously recentralizing key decision-making powers. The investigation demonstrates that executive centralization in urban governance has paved the way for the swift implementation of contested urban transformation projects marked by a non-participatory approach to urban ‘renewal’, the reconfiguration of the state’s redistributive function vis-à-vis low-income households, and a tendency to exacerbate existing patterns of inequalities in the housing market.     

基于信号博弈的卖方欺诈行为分析

本文主要基于信号博弈的卖方欺诈行为进行研究，假设拍卖中可能存在欺诈型和诚实型两种卖家，其中欺诈行为有概率发生在第二价格拍卖中：欺诈型卖方冒充竞拍者递交仅次于最高价的报价从而获得额外收益。两种卖家根据各自效用选择拍卖形式：第一价格或者第二价格。而竞买者将卖者的选择作为信号，更新对卖方类型的判断，然后制定报价策略。这是一个买卖方信号交叉影响的过程。考虑到拍卖过程中买方价值相关性，本文在建立模型中参考了关联价值原理。针对该模型进行分析，得出了不同情况下的买卖方策略，并且研究了买方报价、买方判断、卖方收益三者之间的关系。文中利用贝叶斯公式对双方的策略选择问题进行预测，与单纯的概率分布方法相比，更具实践价值。     

竞争中的参考价格效应及承诺

消费者的社会感知会影响其对产品和品牌的评价。当消费者进行购买选择时，经常会受到参考价格效应的影响。而广告和价格不仅是企业经常要考虑的重要决策，还会对参考价格产生重要影响。为此，一个值得研究的的问题是：在考虑参考价格效应的情况下，企业该怎样确定其动态广告和价格策略？
为了研究该问题，本文构建了一个广告和价格的动态模型，来研究一个双寡头市场环境下两个寡头企业的价格和广告决策，并以此分析参考价格效应的作用。具体而言，我们假定企业可以采用广告承诺和价格承诺中的一种，其中前者承诺其在一段时间内的广告投入量恒定不变，而后者确保价格不变。两种策略不仅会影响消费者的购买决策，也会影响竞争对手的选择。在上述假定下，我们探讨了两个寡头企业在都采用广告承诺、都采用价格承诺及一个企业采用广告承诺而另一个企业采用价格承诺等三种不同情形下的最优广告和价格决策，并以此分析了三种情形下参考价格效应对最优的广告投入及定价策略的影响。最后，通过数值分析，探讨了不同情形下企业的最优策略选择。     

劣势耐用品厂商的产品质保期与质保服务投入策略研究

在实际中，消费者购买耐用品时均同时获得厂商提供的质保服务，由于产品质保服务影响着消费者的产品使用效用，因此耐用品定价、质保期和产品质保服务投入是影响厂商利润的主要因素。考虑双寡头市场环境下，建立微分博弈模型讨论单位产品质保服务投入和产品质保期对双寡头厂商均衡价格的影响。结论表明双寡头厂商的单位产品质保服务投入越高、质保期越长，均衡价格越高；但单位产品保服务投入与质保服务对消费者效用影响系数的关系影响着竞争对手在均衡价格的变化趋势；劣势的低质量厂商可以通过增加单位产品质保服务投入策略或延长质保期的策略实现在均衡下与高质量厂商以同等价格销售耐用品，但劣势厂商增加单位产品质保服务投入策略要优于延长质保期策略。最后，利用数值分析进一步验证了所得结论的有效性。     

Experiences of homelessness by people seeking asylum in Australia: A review of published and “grey” literature

This review examines the current published and “grey” literature relating to the experiences of homelessness by people seeking asylum within Australia. While many people seeking asylum have experienced homelessness during their flight, inadequate and unaffordable housing are a feature of the settlement experience for a large number of new arrivals to Australia, putting at risk their successful settlement. This study aims to explore the factors influencing access to stable housing. A systematic review of the academic literature and a search of the grey literature identified 11 articles and 20 documents related to homelessness and people seeking asylum in Australia. The academic literature included a variety of methods and approaches to the investigation of the experience of homelessness in Australia. The grey literature was more practice based, including evaluation and research reports, submissions, and newsletters. Findings suggest that experiences of homelessness are multifaceted and have a range of influences, including policy, financial stress, lack of access to education and employment, and a lack of affordable and suitable housing. Any solutions to address homelessness need to be similarly diverse. Discrimination from real estate agents and employers was also identified as a barrier to housing for many people seeking asylum, an issue that will need to be addressed at a systematic level. The lack of research published in the academic literature means that although there may be some programmes or solutions operating in the community, as demonstrated in the grey literature, this information is not being shared beyond organisation websites or subscriber lists, resulting in a lack of coherency or sharing of solutions. This review highlights the need for further attention to the factors influencing homelessness in asylum seekers, the experience of homelessness, and how these can be addressed by government and non-government led strategies and policy development.     

A reverse form of welfarism: some reflections on Australian housing policy

In this paper I argue that we have been amiss in diagnosing the role played by government, which has exacerbated the housing problems afflicting low‐income households in Australia. However, I argue further we have placed too much faith in the capacity of managerial interventions to ameliorate what are far more deep‐rooted and systemic challenges. It is suggested that researchers need to adopt a more critical account of the conduct of contemporary government policy making, one that casts aside a view of the State as a benevolent agency whose primary objective is to ameliorate the conditions of the disadvantaged. Instead, the State should be understood as an agency that sustains the conditions necessary for the finance industry, developers and real estate agents, along with well‐off householders and landlords, to reap profits. The political economy of Australian housing, in its current incarnation, performs a form of reverse welfarism that exacerbates social inequality.