亚太地区国家治理与资本市场

Q3 Business, Management and Accounting
G. Duppati, F. Scrimgeour, Anoop S. Kumar
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引用次数: 0

摘要

摘要手稿类型:使用动态风险值(dynamic VaR)、混合数据样本(MIDAS)和指数广义自回归条件异方差(EGARCH)模型,对亚太地区国家级治理与股票市场之间的关系进行了实证分析。研究问题:就回报水平和股价波动而言,一个国家的治理与股市之间是否存在关系?我们假设,与治理水平较低的国家相比,治理水平较高的国家的股票回报率将具有较低的事前预期回报率和较小的波动性。研究结果/见解:从实证结果中可以明显看出,亚太区域公司一级治理和国家一级治理仍然存在显著的多样性。世界治理指数(WGI)与动态VaR之间的混合数据样本自回归分布滞后(MIDAS-ADL)模型相关性结果表明,印度、中国和马来西亚的高频斜率估计量为负值。此外,他们的t统计表明,相关性显著;同时,它们的拟合优度也很高,证实了MIDAS-AD模型的解释力。因此,印度、中国和马来西亚的资本市场表现与其公司级治理和国家级治理呈负相关。然而,中国的WGI与公司层面的治理和国家层面的治理呈正相关。这种不常见的现象可能是其特殊的政治制度以及资本市场和实体经济分离的结果。理论/学术影响:国家一级的治理与亚太市场股票波动之间的联系表明,通过加强国家治理,可以减少股价波动。波动性作为一种风险指标,反映了市场在处理信息信号以寻找均衡回报-风险关系方面的不确定性。因此,研究人员必须使用稳健的方法将不同频率的数据合并到同一个方程中。从业者/政策影响:包括股市在内的监管框架将受益于对治理和风险关联方式的更集中考虑。广义自回归条件异方差(GARCH)和VaR分析的结果表明,股市波动率是一个国家治理的合适指标。由于国家治理指数充其量是年度性的,波动性指标可以提供更及时的读数。波动性的增加表明国家治理水平下降,这对贸易参与者、捐助组织和世界银行等国际贷款机构产生了影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Country-level Governance and Capital Markets in Asia-Pacific Region
Abstract Manuscript type: An empirical analysis of the relationship between country-level governance and share markets in the Asia-Pacific region was carried out using dynamic value at risk (Dynamic VaR), mixed data sample (MIDAS) and exponential generalised autoregressive conditional heteroskedasticity (EGARCH) models. Research question/issue: Is there a relationship between a country’s governance and stock market in terms of the level of returns and share price volatility? We hypothesise that stock returns for countries with higher levels of governance will have lower ex ante expected returns and less volatility than countries with lower levels of governance. Research findings/insights: It is evident from the empirical findings that there is still significant diversity in both corporate-level governance and country-level governance within the Asia-Pacific region. The results from using mixed data sample-autoregressive distributed lag (MIDAS-ADL) model correlation between world governance index (WGI) and the dynamic VaR suggest that the estimators of high frequency slope for India, China and Malaysia are negative. In addition, their t statistics show that the correlation is significant; meanwhile, their goodness of fit is also very high confirming the explanation power of MIDAS-AD model. Consequently, the capital market performances of India, China and Malaysia are negatively related to their corporate-level governance and country-level governance. However, China has a positive correlation between WGI and corporate-level governance and country-level governance. This uncommon phenomenon may be the result of its special political system and the segregation of the capital market and the real economy. Theoretical/academic implications: The linkage between country-level governance and volatility of stocks in Asia-Pacific markets indicates there is scope to reduce stock price volatility through enhanced national governance. Volatility as an indicator of risk reflects market uncertainty in terms of processing information signals to find the equilibrium return risk nexus. Consequently, researchers have to incorporate the data of different frequency into the same equation using robust methods. Practitioner/policy implications: Regulatory frameworks encompassing stock markets will benefit from a more focussed consideration of the way in which governance and risk are correlated. Findings from the generalised autoregressive conditional heteroskedasticity (GARCH) and VaR analysis are that stock market volatility is a suitable proxy for the governance of a country. As country governance indices are annual at best, volatility measures give more timely readings. An increase in volatility suggests there is a decline in national governance, and this has implications for those involved in trade, donor organisations and international lending agencies such as the World Bank.
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来源期刊
Indian Journal of Corporate Governance
Indian Journal of Corporate Governance Business, Management and Accounting-Business and International Management
CiteScore
2.00
自引率
0.00%
发文量
10
期刊介绍: Indian Journal of Corporate Governance is a bi-annual refereed journal that provides a forum for discussions and exchanging views on a wide range of corporate governance issues ranging from board practices, independent directors, whistle blower policies and shareholder activism on one hand to media’s role in corporate governance, corporate social responsibility and sustainability reporting on the other. It comprises of research articles, concept papers, case studies and reports providing a blend of theory and practices of corporate governance globally to cater to the interests of practitioners, academics, researchers and policy makers.
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