A note on “Coordinating a supply chain for deteriorating items with a revenue sharing and cooperative investment contract”

In this short note, we first improve the proof in Zhang et al. [1] to show the strict concavity of the unit time total profit of the whole supply chain with respect to preservation technology investment without approximation. We then generalize the model of Zhang et al. [1] to a broader class of market demand functions. Additionally, theoretical results are provided to illustrate the features of the proposed model.     

关于直销人员人性变异的若干思考

根据直销人员人性变异的现状，分别从宏观、微观环境及个人内在原因三方面进行分析，认为要想从根本上改变这种现象，政府不应该仅仅是简单的管控，更重要是的疏导，才可以有效防范直销人员人性变异的事情继续蔓延，最终引领中国直销业逐步走向健康发展之路。     

城市综合体建设面临的一系列问题探讨--以南通市为例

随着房地产调控和城市化进程的加快，商业地产越来越受到开发商的青睐。城市综合体作为商业地产的典型代表以其多结构多层级的功能组合迅速提升区域价值而拥有了“城中之城”的美誉，在东部地区二三线城市大量涌现。但城市综合体带动城市发展的同时，也引发了一系列风险亟待关注。     

论中国文化“走出去”战略对翻译实业的伦理诉求

翻译实业在中国文化“走出去”战略背景下赢得了巨大的发展机遇，也面临着来自三个方面的巨大的挑战：市场竞争压力、主体合作不力和管理运行机制滞后。与此同时，蕴含在三大挑战中的伦理诉求也日益彰显。因此，以市场伦理、译者伦理和服务伦理三种伦理构建的伦理体系成为翻译实业自身健康、合理、持续发展的重要保障。     

新冠肺炎疫情下对完善快递末端配送体系建设的思考——以重庆市为例

自新冠肺炎疫情发生以来，快递业为应急救援物资和人民群众日常基本生活物资运输和寄递服务、畅通经济循环、满足民生需要等方面做出了重要贡献，为疫情防控提供了强有力的支撑；但同时也暴露出了一些问题，集中体现在末端配送体系不健全、末端收投不畅等方面。在对电子商务和快递业发展现状进行分析的基础上，对快递末端配送的主要模式和发展趋势进行了论述，结合重庆市的实际情况，分析了其末端配送存在的不足，并从公共服务平台搭建、智能化无接触式配送构建、乡村快递服务网络完善、快递员队伍建设等方面提出了对策建议，以助推重庆经济社会高质量发展。     

A Bayesian mixture of experts approach to covariate misclassification

This article considers misclassification of categorical covariates in the context of regression analysis; if unaccounted for, such errors usually result in mis-estimation of model parameters. With the presence of additional covariates, we exploit the fact that explicitly modelling non-differential misclassification with respect to the response leads to a mixture regression representation. Under the framework of mixture of experts, we enable the reclassification probabilities to vary with other covariates, a situation commonly caused by misclassification that is differential on certain covariates and/or by dependence between the misclassified and additional covariates. Using Bayesian inference, the mixture approach combines learning from data with external information on the magnitude of errors when it is available. In addition to proving the theoretical identifiability of the mixture of experts approach, we study the amount of efficiency loss resulting from covariate misclassification and the usefulness of external information in mitigating such loss. The method is applied to adjust for misclassification on self-reported cocaine use in the Longitudinal Studies of HIV-Associated Lung Infections and Complications.     

全球价值链背景下加工贸易企业升级路径分析

金融危机以来国际贸易保护主义色彩浓郁，中国内部粗放型经济增长方式存在一定的不可持续性和人口红利开始逐渐消失，中国加工贸易嵌入发达国家主导的全球价值链低附加值和低生产率问题引起了学者的注意。随着外部贸易环境、国内新常态要素禀赋结构的变化和深化供给侧结构性改革的需要，推动加工贸易企业升级已经成为中国经济结构调整的一个重要部分。通过分析中国加工贸易的起源、发展和现状，描述全球价值链背景下加工贸易的若干特征和“低端锁定”问题，引出了融资约束对企业经营决策、出口行为以及企业全球价值链上地位的影响，并围绕以生产过程、产品升级和功能升级为主的产业内升级和以劳动密集型向技术密集型转变为特征的产业间升级两个角度，提出了中国加工贸易企业在全球价值链上攀升的路径。研究认为，着重强调人力资本积累、本土企业技术外溢的吸收能力以及自主研发能力的培养，同时结合国际产能合作和“一带一路”倡议等现实背景，实现东西双向开放，塑造以我为主的包容性的区域价值链和国内价值链等，是中国加工贸易企业升级的路径和新机遇。     

区块链应用下生态农产品供应链优化

利用博弈模型，对生态农产品供应链内部契约合作稳定情况进行研究，并就区块链技术如何保障生态农产品供应链稳定运行进行分析。分析认为：生态农产品供应链稳定运行情况受到市场风险制约，区块链技术能通过改善生态农产品供应链内部信息不对称现象，增加生态农产品供应链内部交易节省成本并提高主体违约成本，同时增加生态农产品供应链主体长期合作得益及协调主体合作，从而保障生态农产品供应链稳定运行。在此基础上，结合区块链技术特征对区块链技术应用下生态农产品供应链结构设计进行了探讨并对部分可能出现的问题进行了讨论。     

基于ACC支付模式的供应链金融模型研究

在零售商存在资金不足和顾客需求随机情况下，以报童模型为基础，针对变质品构建了供应链金融问题和ACC支付模式（提前支付Advance、现金支付Cash和信用支付Credit）相结合的零售商订货模型，即零售商与供应商、融资机构合作条件下的模型。研究表明，零售商会随着最优订货批量和最低期望成本的增加和降低趋势，进而调整订货量，从而规避供大于求的风险，最终降低总的期望成本。同时供应商可以适当调整支付比例，让零售商来分担坏账和商品变质风险。     

You don’t forget where you come from: linking formation and operations in publicly funded innovation networks

Abstract

Publicly funded innovation networks (PFINs) are an increasing form of organizing joint innovation activities. Yet, little is known about this form of organization which mixes characteristics of centralized and de-centralized innovation networks. This research investigates how processes of network formation affect its operation in PFINs as a hybrid form between centralized and de-centralized networks. Presenting rich data from a PFIN in the Scandinavian maritime industry, the findings show three patterns linking network formation and operation. The first pattern – well-aligned centralized and de-centralized approaches – in network formation resulted in well-functioning network operation. The second pattern – misalignment between centralized and de-centralized approaches in network formation resulted in stagnating innovation activities during network operation. The third pattern – a pre-dominant de-centralized approach during network formation resulted in unconnected sub-activities during network operation. This research contributes by showing the importance of utilizing both centralized and de-centralized approaches and aligning them to enable well-functioning network formation and operation.