COVID-19、经济一揽子计划与印度股市:事件分析

Mahesh Dahal, Joy Das, Amit Sangma
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摘要

本研究试图分析 COVID-19 大流行病爆发和印度政府宣布经济一揽子计划前后的证券行为。在本研究中,考虑了构成 BSE 100 指数的证券的每日价格,因为这些证券的交易量很大,其交易影响会立即反映在指数上。为了进行特定行业分析,证券根据行业进一步分类,并使用事件研究方法进行分析。计算了整体市场和各板块的平均异常回报率(AARs)和累计平均异常回报率(CAARs),并使用参数 T 统计量、标准化横截面检验和非参数符号检验对其显著性进行了检验。根据分析结果,研究得出结论,对印度股市造成负面影响的不是大流行病,而是控制大流行病的行动。印度政府为提振经济而宣布的一揽子经济计划也被证明是徒劳的,未能实现其目标。在各行业中,只有科技行业受到了大流行病的积极影响。研究结果将有助于交易界确定在大流行病情况下可作为对冲工具的行业/证券。JEL Codes:E44, G1, G14, G18
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COVID-19, Economic Package and Indian Stock Market: An
Event Analysis
The present study is an attempt to analyse the behaviour of securities around the outbreak of the COVID-19 pandemic and the declaration of an economic package by the government of India. In this study, daily prices of securities constituting the BSE 100 index are considered as these securities are highly traded and their trading impact would immediately reflect on the index. To present a sector-specific analysis, the securities are further classified based on sectors and are analysed using the event study methodology. Average abnormal returns (AARs) and cumulative average abnormal returns (CAARs) for overall market and for each sector have been calculated and their significance have been tested using parametric T-statistics, standardised cross-sectional test and non-parametric sign test. Based on the analysis, the study concluded that it was not the pandemic but the actions towards controlling the pandemic that caused a negative impact on the Indian stock market. The economic package declared by the government of India to boost the economy also turned out to be futile and failed in achieving its objectives. Among the sectors, only the technology sector has been positively impacted by the pandemic. The outcome of the study would be beneficial to the trading community in identifying the sectors/securities that would act as hedging in the pandemic situations. JEL Codes: E44, G1, G14, G18
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