The influence of oil price uncertainty on stock liquidity

Using high-frequency intraday data, this study provides strong empirical evidence that elevated oil price uncertainty has a significant and negative influence on stock liquidity. More specifically, the results suggest that large oil-related corporations are most affected, followed by small-listed firms more generally. Further analysis reveals that liquidity providers widen the bid-ask spreads to protect themselves during periods of high oil price uncertainty for large-listed firms, particularly those in the oil industry. These findings are robust to various measures of oil price uncertainty, different market conditions, structural break analysis and show the influence of oil price movements extends to stock liquidity.     

Uniform pricing effect: The influence of uniform pricing on product value judgement and purchase intention

Uniform pricing, which is a pricing strategy that sets a unified price for all products in the store or all products in the same category, is becoming increasingly popular over the past decades. However, scarce attention has been paid to investigating its impact on consumer behaviour. This research investigates the influence of uniform pricing on product value judgements and purchase intentions. Four studies demonstrate that uniform pricing (vs. non-uniform pricing) could induce stronger promotion perception, which leads to more positive product value judgements and purchase intentions. Moreover, price sensitivity and product involvement moderate this effect, and this effect only exists for high price-sensitive consumers and low product involvement consumers.     

Health shocks and mortgage debt payoff among American homeowners over age 50: A survival analysis

Mortgage debt is financially burdensome for many older homeowners in the United States. As people age, declining health can bring about increased healthcare costs. Focusing on homeowners aged 50 and older in the U.S., we investigate two research questions: (1) To what extent does a heath shock affect the likelihood of paying off a mortgage voluntarily or involuntarily? and (2) how long does a health shock delay the time it takes to pay off a mortgage? We used eight biannual waves (2004–2018) of the Health and Retirement Study containing 11,772 borrowers to build survival regression models. Results showed that a health shock reduced the likelihood of voluntary payoff by 12%, while it increased the probability of involuntary payoff by 18%. A health shock delayed voluntary and involuntary payoffs for 30 and 21 months, respectively. We discuss tax deduction and HELOCs as strategies to reduce older homeowners' mortgage strain.     

The effectiveness of information interventions to improve domestic food safety among rural consumers

Consumer education on food handling behavior is regarded as an effective method to improve domestic food safety and prevent foodborne illness, but is usually overlooked in rural areas. Using a presurvey and two rounds of postsurveys targeted at rural consumers from China included in a randomized controlled trial, this study investigated the effectiveness of two information interventions—a leaflet with tips for best practices and the leaflet plus consumer education sessions conveyed by phone—and compared them with a control group. Cloth use behavior was the target in the trial and five specific aspects were evaluated: (1) whether the cloth was made of old clothes, (2) whether the one used to clean kitchen tables was also used to wash dishes, (3) whether it was hung to dry, (4) how it was disinfected, and (5) how long the cloth was used before being discarded. Firstly, consumers' behavior was scored by summing the above-mentioned five behaviors. The results estimated using the difference-in-difference model showed that respondents in the leaflet-only group improved to a greater extent than those in the control group, but their difference in progress was not statistically significant until the second round of the postsurvey. Respondents in the leaflet-plus-phone group were quicker to adopt suggested practices and made discernible improvements compared with those in the leaflet-only group in the first round of the postsurvey, but the gap between these groups narrowed to statistically insignificant in the second round of the postsurvey. It was concluded that one consumer education session was effective and made a difference in the long term, whereas more education sessions produced normative behavior at faster rates, showing a significant improvement in the short term. Then, the study estimated the effectiveness of interventions on the five specific behaviors separately. The results were estimated using a probit difference-in-difference model and showed that the suggested behaviors with lower costs or a greater difference from past behaviors were more likely to be adopted by consumers. Consumer education facilitates proper food handling practices among rural households, which should be considered by policy makers.     

有激情的员工更能创新吗

员工创新绩效是衡量企业创新能力的重要标准。以创造力交互作用观为理论框架,从认知视角考察员工和谐型激情通过创造力自我效能感对创新绩效的作用机制及相应的情境机制。对492份问卷分析发现：和谐型激情对员工创新绩效有正向预测作用;创造力自我效能感中介了和谐型激情与创新绩效的关系;创新氛围感知既调节了和谐型激情与创造力自我效能感的关系,又调节了创造力自我效能感在和谐型激情与创新绩效之间的中介作用。研究结果揭示了员工情感与认知对提高创新绩效的重要意义。     

企业应收账款的风险及其控制刍议

在市场竞争日益激烈、产品同质化竞争的情况下,企业为了抢占市场、扩大销售规模,对客户提供赊销服务成为较常用的手段,但由此可能会导致应收账款回款问题的风险,本文在对企业应收账款形成原因、相关风险分析的基础上,提出了风险控制的具体措施。     

急诊实践教学方法探讨:PBL联合模拟教学法

急诊医学作为一门临床综合学科,其医学的范畴涉及多个专科,具有急迫性、综合性、实践性、复杂性等特点,实践教学难度较大。我院在急诊医学实践教学中,采用以问题为基础的教学法(PBL)联合模拟教学法,显著提高学生的学习主动性,有效地建立急诊临床思维,培养学生实践能力及知识运用能力,促进急诊医学理论知识的深入掌握,提高教学效果。     

中国选择社会主义的时代条件

在 2 0世纪前半叶战争与革命的时代条件下 ,中国先后选择了社会主义的救国思想武器和发展道路 ,这两次重大选择分别发生在第一次世界大战和第二次世界大战之后。本文考察了两次世界大战对中国选择社会主义的重要影响。     

不同战略导向对自主创新与合作创新的影响研究

在动态竞争的环境下,如何选择适合自身发展的创新方式已成为企业技术创新中面临的难题.文章在借鉴前人研究的基础上,把企业家导向、市场导向、自主创新及合作创新整合在同一理论模型中,针对相关因素之间的关系,提出4种命题,从而为企业提高自主创新效率提供了有效路径.     

农村税费改革对弱势群体的影响

农村税费改革取得巨大成就,但农村弱势群体受到影响,主要表现在弱势群体收入、社会减免、社会保障等福利水平减少,受教育水平下降,主要原因是农村税费改革后基层财政收入减少、教育投资下降、转移支付不规范等政策设计问题。农村弱势群体的特征决定他们承受逆境的能力差,需要社会关注。为此提出解决农村税费改革后弱势群体福利水平下降的政策措施。