Cointegration networks in stock markets

We use a novel approach based on a combination of network and cointegration analysis to examine linkages between stock markets across market cycles. Our results show that long-run linkages are likely to be global rather than regional and that market turbulence increases linkages. However, we find no widespread common stochastic trends between markets and neither are we able to draw a conclusion that major financial markets display influences network linkages.     

Quantitative properties of sovereign default models: Solution methods matter

We study the sovereign default model that has been used to account for the cyclical behavior of interest rates in emerging market economies. This model is often solved using the discrete state space technique with evenly spaced grid points. We show that this method necessitates a large number of grid points to avoid generating spurious interest rate movements. This makes the discrete state technique significantly more inefficient than using Chebyshev polynomials or cubic spline interpolation to approximate the value functions. We show that the inefficiency of the discrete state space technique is more severe for parameterizations that feature a high sensitivity of the bond price to the borrowing level for the borrowing levels that are observed more frequently in the simulations. In addition, we find that the efficiency of the discrete state space technique can be greatly improved by (i) finding the equilibrium as the limit of the equilibrium of the finite-horizon version of the model, instead of iterating separately on the value and bond price functions and (ii) concentrating grid points in asset levels at which the bond price is more sensitive to the borrowing level and in levels that are observed more often in the model simulations. Our analysis is also relevant for the study of other credit markets.     

Why is free education so popular? A political economy explanation

This paper analyzes the political support for different funding regimes of education in a one‐person, one‐vote democracy. We focus the analysis on four systems that have had a preponderant presence in the political debate on education: a private system, a public system that delivers the same resources to each student (universal‐free education), a public system that intends to equalize results, and a public system that aims to maximize the output of the economy. We show that a system of universal free education is the Condorcet winner. The level of income inequality and the degree to which income distribution is skewed to the right are key factors behind this conclusion. We also show that the voting outcome of public versus private funding for education depends crucially on the type of public funding under consideration.     

Determinants of bank’s interest margin in the aftermath of the crisis: the effect of interest rates and the yield curve slope

Empirical Economics - This paper analyses the determinants of net interest margin, focusing on the impact of interest rates and the slope of the yield curve, using a broad panel of data from 32...     

1864例药物不良反应报告分析

目的了解某院药品不良反应(ADR)的发生特点及规律,为临床安全用药提供参考。方法对合肥市第二人民医院2016年至2018年上报的ADR报告进行回顾性分析。结果1864例ADR中,66~89岁患者所占比例最高(768例,占41.20%);女性患者984例,略多于男性(880例);静脉给药引发的ADR最多,占81.33%;发生ADR的药品主要为抗菌药品,其次为抗肿瘤药和中药制剂;ADR主要累及消化系统、皮肤及附件;ADR类型主要为一般ADR,导致严重的ADR主要是抗肿瘤药;ADR转归情况以痊愈和好转为主,两者占94.31%。结论老年患者更易发生ADR;抗菌药、抗肿瘤药等ADR发生率较高;所有剂型中注射剂型ADR发生率最高;消化系统、皮肤及附件损害最为常见。     

征信与金融隐私的冲突及协调性研究

征信要求信息公开,金融隐私则要求数据保护。如何处理征信与金融隐私的关系、协调两者之间的冲突、寻找其平衡点,是各国理论和立法关注的焦点。从征信与金融隐私的概念切入,研究两者的主要冲突,分析协调两者之间冲突的关键因素,对我国的征信管理提出相关的意见和建议。     

营造特色校园文化，促进高职院校创新型人才培养

高等职业教育是我国高等教育的重要组成部分,其人才培养水平如何,直接关系到我国社会主义建设事业的成败。在由规模扩张到内涵建设发展的转化过程中,高职院校校园文化建设日益凸显其重要性。积极营造有利于创造型人才培养的校园文化,成为了高职院校一项现实而艰巨的任务。     

竞争战略、技术效率与公司绩效——来自中国制造业上市公司的经验证据

笔者基于283家中国制造业上市公司1999年～2006年的面板数据,利用因子分析,识别出上市公司低成本和差异化这两种竞争战略,并在此基础上考察了竞争战略、技术效率与公司绩效三者之间的关系。研究结果表明,低成本战略与技术效率、公司绩效之间呈显著正相关关系;差异化战略与公司绩效显著正相关且短期内与技术效率呈显著负相关关系;技术效率与公司绩效之间呈显著正相关关系;低成本战略通过技术效率作用于公司绩效的传导机制作用显著,而差异化战略是否通过提升技术效率改进公司绩效的机制未得到证实。     

Harmonizing conflict in husband–wife purchase decision making: perceived fairness and spousal influence dynamics

To market important products to families successfully, salespeople must understand how couples behave in concert to resolve conflict across major decisions. The authors develop a model of spousal fairness and test it with a study of multi-period family purchase decision making. The results show that a spousal sense of fairness serves as a mechanism for contemporary couples to harmonize conflict over time in family decisions. Specifically, spouses’ perceived fairness mediates the relationship between spousal prior influence and spousal decision behavior in subsequent decisions. Spouses also consider their partner’s perceptions of fairness when taking action to restore fairness. Moreover, the effects of perceived fairness are moderated by spousal traits of empathy, egalitarianism, and empowerment in a gendered pattern.

一类相同材料焊接问题的稳定性

文章讨论了相同材料带一个孔洞无限平面焊接问题的稳定性,通过引进两个全纯函数,把焊接问题转化为黎曼边值问题中的跳跃问题,从而得到应力函数的表达式,借助柯西型积分关于积分曲线和核密度的稳定性来研究其稳定性,并给出误差估计。