股市波动、金融政策和宏观经济关系研究——基于因子VAR模型

通过因子分析从诸宏观经济变量中提取了金融政策因子和宏观经济状态因子,建立了基于VAR的股价波动、金融政策和宏观经济三变量回归模型。研究表明：金融政策影响股价的表现,而宏观经济状态对股价、股价对金融政策和宏观经济状态的影响均不显著;基于标准差的VAR（5）模型相对于基于收益率的VAR（3）模型能更好地刻画股市波动与金融政策、宏观经济三者之间的关系。     

金融管制理论和方法的演进

管制经济学通常包括经济性管制、社会性管制和反托拉斯管制三大部分。其中经济性管制研究的是自然垄断领域和存在严重信息不对称领域,后者典型的表现形式如金融业。一般的管制经济学因金融业内容丰富,需要独立的研究而较少涉及。而多数金融业管制研究侧重于监管的层面。文章从管制思想的演进、管制理论对金融业的实证研究、金融业管制经济分析和金融管制方法最新进展四个方面对金融管制经济理论进行分析和评述。     

韩国疗养保健客源市场分析

疗养保健客源市场是发展涉外疗养保健服务贸易的关键所在。早在2000年韩国已经步入老龄化社会,且老龄化趋势持续进一步加剧。利用韩国统计厅公布的资料,从韩国的人口结构、医疗保健、社会环境、社会福利分析入手,深入研究韩国疗养保健客源市场,发现韩国特定的人口结构状况及医疗保健等方面存在诸多问题,可为我国开发韩国老龄人口疗养保健市场提供可能性和必要性。     

旅游餐饮市场信用缺失与政府监管

文章在分析我国旅游餐饮市场信用缺失的特点、危害的基础上,运用博弈矩阵模型对旅游餐饮市场信用缺失与政府监管的关系进行了剖析,认为在政府缺位的情况下,旅游餐饮商家为了经济利益将始终采取欺客宰客行为。所以,政府对旅游餐饮市场的干预和监管是必须的。政府应不断完善法规和管理制度、提升监管技术水平并加大对欺诈行为的制裁力度。     

Impact of domestic and foreign knowledge mechanisms on the innovation performance of Indian firms

Research on emerging market firms (EMFs) has acknowledged the role of innovation in catching-up with advanced economies. Although we know that EMFs’ innovation increasingly depends on collaborations and cross-border knowledge flows, less has been said about the effectiveness of foreign and domestic knowledge mechanisms adopted to improve EMFs’ innovation performance. We hypothesize that foreign mechanisms rely on diverse knowledge and foster explorative innovation (i.e. innovation that extends the existing local competencies), while domestic mechanisms are more likely to be associated with the exploitation of the local existing competencies. Additionally, we claim that the breadth of EMFs’ absorptive capacity strengthens the impact of foreign knowledge mechanisms on explorative innovation, while depth increases the impact of domestic knowledge mechanisms on EMFs’ exploitative innovation, thus highlighting that the interplay of knowledge resources internal and external to the firm involve different levels of recombination. Our empirical analyses conducted on a sample of 161 Indian bio-pharmaceutical firms observed from 1997 to 2018 confirm our hypotheses, thus contributing to the literature on EMFs’ catching up via internationalization and innovation.     

Pricing risky corporate bonds: An empirical study

This paper empirically studies a model for pricing risky corporate bonds proposed by Baaquie—based on the seminal Merton. The proposed model provides an exact solution for the price of a risky corporate bond with a finite maturity and explains the market price of corporate fixed coupon bonds as being the result of the market risk that is carried by the bond. Baaquie's model is empirically tested using 42 fixed coupon bonds issued by 23 US corporations, between 2011 and 2017. It is found that the proposed model estimates most bond prices quite accurately. Market time (similar to the concept of psychological time), which is distinct from calendar time, is quantified in the paper and is an exogenous behavioral parameter that plays a pivotal role in improving the accuracy of the pricing model for long-maturity risky bonds.     

Commodity momentum decomposition

This study decomposes the momentum factor (MOM) in the commodity futures market. A high-to-price (HTP) factor generates a higher Sharpe ratio than a price-to-high (PTH) factor. We uncover that the profitability mechanisms across three momentum factors are different. The positive returns on MOM and PTH are associated with overconfidence and strong self-attribution. In contrast, HTP is linked to investors' underreaction and the information diffusion process. Moreover, we find that positive demand shocks raise the return on HTP.     

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.     

Screening: Value enhancing or diminishing?

Using an international sample of environmental and social firm-level ratings between 2007 and 2019, we form synthetic overlapping region-based equity portfolios to examine the impact of screening stringency on abnormal returns and specific risk. While previous literature analyzes this relationship in a bidimensional setting, inferences made in this study are additionally robust to regional levels of market efficiency. Our results suggest that (1) screening stringency displays an inverted curvilinear relationship with risk-adjusted returns and (2) the impact on specific risk is strictly increasing. Thus, portfolios that employ marginal and substantial screening incur the cost of responsible investing. However, moderate screening has the benefit of increasing performance without the burden of financing the least responsible corporations.