空港物流园区:产业集群竞争优势视角的研究

空港物流园区是由一系列航空物流企业和机构组成的产业集群。本文从产业集群的视角分析了空港物流园区的形成机制,利用"菱形模型"研究了空港物流园区产业集群的竞争优势,并提出了增强空港物流园区产业集群竞争力的措施。     

保险企业数字化战略转型路径研究

数字经济的深入推进正深刻地改变着保险企业的内外部环境,数字化战略转型成为保险企业发展必然选择。本文首先从外部环境推动和内部能力重塑拉动两方面剖析了保险企业数字化战略转型的动因,随后对保险企业数字化战略转型的内涵和特征进行阐释,在此基础上构建了保险企业数字化战略转型的“转型动因-转型过程-转型成效”的实现框架。建议保险企业从客户交互端、业务运营端以及支持保障端三大层面及九大维度着手进行变革转型,本文的研究试图对企业数字化战略转型的理论研究和管理实践有所启示。     

Impact of Auditor Report Changes on Financial Reporting Quality and Audit Costs: Evidence from the United Kingdom

While substantial revisions to auditor reporting requirements are being implemented internationally, the impact of these reforms on financial reporting quality is unknown. We exploit the United Kingdom's recent auditor reporting changes and find that the United Kingdom's new reporting regime is associated with an improvement in financial reporting quality as proxied by significant decreases in absolute abnormal accruals and the propensity to just meet or beat analyst forecasts, and a significant increase in earnings response coefficients. As for audit costs, we do not find a significant change in audit fees or audit delay surrounding the implementation of the new reporting regime. Taken together, the results of this study suggest that new auditor reporting requirements are associated with a significant improvement in financial reporting quality without detecting a significant increase in audit costs.     

高职院校国际贸易专业课程思政问题及建设路径研究——基于湖南省高职院校国际贸易专业课程思政现状的调研分析

为探讨高校思想政治教育新模式,不断推进高职国际贸易专业课程思政建设,运用问卷调查法针对湖南省高职院校国际贸易专业"课程思政"实施现状进行调查分析,结合调查结果从强化"课程思政"价值理念、提高教师队伍素质、完善课程思政考评方案几个重要环节,提出专业课程思政建设的实践路径,帮助学生树立正确的价值观、人生观、端正学习态度。     

数字经济对区域经济高质量发展的影响研究

推动数字经济发展,是我国在当下推动经济转型,促进高质量发展的重要战略。本文基于2012~2019年省级面板数据,构建双向固定效应模型,运用基准回归、异质性检验和分位数回归的方法进行实证研究发现,数字经济助推经济高质量发展的同时还存在地区差异,对西部影响最大,中部影响最小,而数字经济的发展水平又受到产业结构、技术创新等因素影响。因此,本文针对不同地区差异分别提出建议,从而促进持续更新发展理念,以创新驱动发展,优化产业结构为数字经济提供良好环境,以期推动数字经济建设发展。     

电力市场效率评估与碳市场价格设计——基于电碳市场关联视角下的传导率估计

厘清并量化电力市场与碳市场间的关联关系,是深化电力市场改革与实现"双碳"目标的重要抓手。本文基于2006—2018年中国100个地级及以上城市的面板数据,使用似不相关回归模型评估了电力市场效率,在此基础上研究了电、碳市场关联条件下碳价对电价的传导率,并对不同场景下全国碳市场的碳价进行了优化设计。研究发现:(1)与非试点地区相比,碳市场试点地区中电力市场的无谓损失率更低,并且市场效率的提高具有更高的碳减排作用。(2)电、碳市场关联条件下,碳价对电力市场中居民电价的传导率高于对工业电价的传导率,但均远低于完全竞争条件下的传导率水平。(3)传导率的提升能够缓解"降电价"与"碳减排"之间的矛盾。当前传导率下电力市场效率目标与碳减排目标的协同实现需要碳价的大幅提升,而在完全传导的理想情况下最优碳价约为40元/吨。(4)长期而言,当前传导率下碳排放总量下降场景、经济增速放缓场景对应的最优碳价分别为255.05元/吨、173.63元/吨,而人口老龄化场景并未对最优碳价的设置形成约束。本文的研究不仅为电力市场与碳市场之间的关联奠定了理论基础,也为全国碳市场价格机制的优化设计提供了政策参考。     

Minimal Hellinger martingale measures of order <Emphasis Type="Italic">q</Emphasis>

This paper proposes an extension of the minimal Hellinger martingale measure (MHM hereafter) concept to any order q≠1 and to the general semimartingale framework. This extension allows us to provide a unified formulation for many optimal martingale measures, including the minimal martingale measure of Föllmer and Schweizer (here q=2). Under some mild conditions of integrability and the absence of arbitrage, we show the existence of the MHM measure of order q and describe it explicitly in terms of pointwise equations in ? ^d . Applications to the maximization of expected power utility at stopping times are given. We prove that, for an agent to be indifferent with respect to the liquidation time of her assets (which is the market’s exit time, supposed to be a stopping time, not any general random time), she is forced to consider a habit formation utility function instead of the original utility, or equivalently she is forced to consider a time-separable preference with a stochastic discount factor.