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新冠疫情如何引发股价和绿色金融市场恐慌:波动动态中的全球经济复苏关系。

How COVID-19 induced panic on stock price and green finance markets: global economic recovery nexus from volatility dynamics.

机构信息

Thu Dau Mot University, Binh Duong, Vietnam.

Faculty of Business and Law, School of Accounting and Finance, Taylor's University Malaysia, Subang Jaya, Malaysia.

出版信息

Environ Sci Pollut Res Int. 2022 Apr;29(18):26322-26335. doi: 10.1007/s11356-021-17774-y. Epub 2021 Dec 1.

Abstract

This paper investigates the effect of different categories of essential COVID-19 data from 2020 to 2021 towards stock price dynamics and options markets. It applied the hypothetical method in which investors develop depression based on the understanding suggested by various green finance divisions. Furthermore, additional elements like panic, sentiment, and social networking sites may impact the attitude, size, and direction of green finance, subsequently impacting the security prices. We created new emotion proxies based on five groups of information, namely COVID-19, marketplace, lockdown, banking sector, and government relief using Google search data. The results show that (1) if the proportional number of traders' conduct exceeds the stock market, the effect of sentimentality indexes on jump volatility is expected to change; (2) the volatility index component jump radically increases with the COVID-19 index, city and market lockdown index, and banking index; and (3) expanding the COVID-19 index gives rise to the stock market index. Moreover, all indexes decreased in jump volatility but only after 5 days. These findings comply with the hypotheses proposed by our model.

摘要

本文研究了 2020 年至 2021 年不同类别基本 COVID-19 数据对股票价格动态和期权市场的影响。它采用了假设的方法,即投资者根据各种绿色金融部门提出的建议来理解股票价格动态和期权市场,从而产生抑郁。此外,恐慌、情绪和社交网站等其他因素可能会影响绿色金融的态度、规模和方向,从而影响证券价格。我们使用谷歌搜索数据创建了基于五组信息的新情绪代理,分别是 COVID-19、市场、封锁、银行部门和政府救济。结果表明:(1)如果交易员的比例数超过股票市场,那么情绪指数对跳跃波动的影响预计会发生变化;(2)随着 COVID-19 指数、城市和市场封锁指数以及银行指数的增加,波动率指数成分的跳跃波动剧烈增加;(3)扩大 COVID-19 指数会导致股票市场指数增加。此外,所有指数的跳跃波动都减少了,但仅在 5 天后才减少。这些发现符合我们模型提出的假设。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b2b6/8635325/b6c57fae0366/11356_2021_17774_Fig2_HTML.jpg

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