普惠型医疗保险发展:实践困境与优化方向

近年来,普惠型医疗保险成为多层次医疗保障体系发展的一大热点。文章首先介绍了中国普惠型医疗保险的发展现状及主要特点,其次通过对国内部分保险公司线上及线下调研,发现当前普惠型医疗保险发展面临配套法律法规有待健全、市场认可度普遍偏低、可持续经营能力不强、保险效果低水平重复、相关主体联动不足等困境。进一步分析美国、英国、德国、新加坡相关经验,提出具体的优化路径:以优化顶层设计为立足点,提高保险规制水平;以强化市场环境建设为切入点,提升市场认可度;以优化运行模式为突破点,激发保险生命力;以设计差异化产品为关键点,强化保险增补性;以建立联通机制为动力点,提高相关主体协同度。     

Financial Stress Regimes and the Macroeconomy

Some financial stress events lead to macroeconomic downturns, while others appear to be isolated to financial markets. We identify financial stress regimes using a model that explicitly links financial variables to macro‐economic outcomes. The stress regimes are identified using an unbalanced panel of financial variables with an embedded method for variable selection. Our identified stress regimes are associated with corporate credit tightening and with NBER recessions. An exogenous deterioration in our financial conditions index has strong negative effects in economic activity, and negative amplification effects on inflation in the stress regime. These results are obtained with a novel factor‐augmented vector autoregressive model with smooth‐transition regimes (FASTVAR).     

Very fast money: High-frequency trading on the NASDAQ

This paper provides evidence regarding high-frequency trader (HFT) trading performance, trading costs, and effects on market efficiency using a sample of NASDAQ trades and quotes that directly identifies HFT participation. I find that HFTs engage in successful intra-day market timing, spreads are wider when HFTs provide liquidity and tighter when HFTs take liquidity, and prices incorporate information from order flow and market-wide returns more efficiently on days when HFT participation is high.     

Considering Technological Impacts When Selecting Food Suppliers: Comparing Retailers' Buying Behavior in the United States and Europe

Purpose: The research investigates the impact of emergent technologies, specifically supply-chain technology and food-production technology (i.e., genetically modified organisms [GMO]), on global food retailers' supplier decisions.

Methodology/approach: Qualitative research is conducted to examine technology-related vendor selection criteria of food retailers in 5 European countries comparing to those in the US.

Findings: Our findings show that global food retailers view supply-chain technology as a competitive advantage and is integrated as an important selection criteria; however, selection criteria differ for food-production technology between the United States and the European countries. European food retailers explicitly oppose food-production technology (GMO), while U.S. food retailers implicitly accept food-production technology. Emerging from this opposing view, global food retailers establish similar criteria for organic food (non-GMO) supplier selection: reliability, distance, consistent quality, and relationships with suppliers.

Research implications: Applying the supplier choice criteria framework (Lehmann and O'Shaughnessy 1982 Lehmann, D. R. and 'Shaughnessy, J. O. 1982. Decision criteria used in buying different categories of products. Journal of Purchasing and Materials Management, 18: 9–14.  [Google Scholar]) to further analyze organic food suppliers, we find that reliability (adaptive criterion), distance (integrative criterion), consistent quality (performance criterion), and relationships with suppliers (economic criterion) are essential, but price is not.

Practical implications: This study suggests that to sustain competitiveness in the global food market, food suppliers not only need to ensure technological compatibility in supply-chain, but also adapt to the local food-production restriction (GMO) and organic food selection criteria preferences.

Originality/value/contribution: Supply-chain technology is strategically important and is adopted by global food retailers for competitive advantage; yet, there are dramatic differences regarding the acceptance of food production technology. This research contributes to the better understanding of how technologies exert significant and strategic weight in the food supplier selection process.     

Cognitive Theory and Moral Behavior: The Contribution of F. A. Hayek to Business Ethics

This paper shows how business ethics as a concept may be approached from a cognitive viewpoint. Following F. A. Hayek's cognitive theory, I argue that moral behavior evolves and changes because of individual perception and action. Individual moral behavior becomes a moral rule when prominently displayed by members of a certain society in a specific situation. A set of moral rules eventually forms the ethical code of a society, of which business ethics codes are only a part. By focusing on the concept of "limited" or "dispersed knowledge" that underlies the cognitive approach, I show that universal ethical norms that should lead to defined outcomes cannot exist. This approach moreover shows the limits of deliberate rule-setting. Attempts to deliberately impose universal ethical rules on societies may turn out to be harmful for societal development and lead to an abuse of governmental power.     

虚拟企业伙伴选择方法的研究

选择正确的合作伙伴是虚拟企业组建的关键步骤之一,也是虚拟企业成功运作的首要前提。针对某一具体案例,从目前虚拟企业伙伴选择的几种典型方法入手,运用系统研究方法,对各方法的具体思路作一总结,并提出了各方法的适用范围、优势与弊端,同时,找出了它们之间的差异所在。     

企业价值创造系统中技术创新乘数效应分析

技术创新是现代企业价值创造的关键资源,可以从现有资产与成长机会两个层面进行分析。企业价值创造系统中,技术创新产出与投入之间存在着乘数关系,技术创新有效使用率、技术创新成果流失率以及竞争取胜概率影响并决定着乘数值。进一步分析表明,企业技术要素与非技术要素协同程度和关键员工的代理人选择行为是影响企业技术创新乘数效应的深层次原因。     

浅析电子商务市场中的信任机制——基于“柠檬市场”理论的分析

通常认为,互联网的出现有利于消除消费者的信息劣势,但事实是,电子商务市场的“柠檬”问题却因为网络的虚拟性实际上被强化了,它可能会降低人们对网络交易的信任感。为此,如何解决这些问题就需要我们进行深入的探讨。本文以“柠檬市场”理论为出发点,分析了信任缺乏的内在机理,并结合案例分析提出了建立网络信任的策略思路。     

The underpricing of initial public offerings: A theoretical and empirical reconsideration of the adverse selection hypothesis

In this paper we generalize Rock's theory regarding the underpricing of IPOs. In Rock's model, informed investors have a firm-specific informational advantage pertaining to a firm's cash flow. We derive the new results that the level of beta and the size of the market risk premium positively affect underpricing. These implications extend the adverse selection theory and further distinguish this theory from the current state of signalling theories of underpricing. The results put the “hot and cold” issue markets phenomenon in a theoretical context. Empirical results are consistent with the theoretical propositions and provide support for Rock's theory of underpricing.     

Wolf in Sheep's Clothing: The Active Investment Strategies behind Index Performance

This paper argues that the commonly used market indices imply forms of active investment management in disguise. The selection and rebalancing rules make these indices highly exclusive and dynamic regarding their underlying components and significantly bias their performance. Any passive investment tracking these indices turns into an active strategy characterised by market timing and state‐dependent performance. Evidence is provided that exclusive indices outperform (underperform) more inclusive peer indices in upward (downward) markets. The constitution and maintenance rules of exclusive indices correspond to a set of active trading and investment rules similar to momentum strategies.