Covid-19声明对股票回报率的影响:几个行业的研究

Leni Sari, Hariman Bone
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引用次数: 0

摘要

本研究是一项事件研究,旨在检查印度尼西亚首次宣布covid-19病例前后的异常返回差异。本研究使用每日收盘价数据来计算收益。我们使用30天的预估期和20天的窗口期。数据采集方法为目的抽样。有64家公司符合既定标准。采用Wilcoxon签署秩检验和配对样本t检验检验酒店、餐饮和旅游、银行和电信行业新冠肺炎病例报告前后异常回报的差异。本研究发现,在酒店、餐饮旅游和银行行业,在宣布首例新冠肺炎病例前后,异常收益没有差异。此外,本研究还发现,在电信行业公布首例covid - 19病例前后,异常回报存在差异。如何引用:Sari, L.和Bone, H.(2021)。Dampak Pengumuman Covid-19 Terhadap Return Saham: penelahan Beberapa部门行业。《Akuntabilitas》学报,14(2),269-278。
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Dampak Pengumuman Covid-19 Terhadap Return Saham: Penelaahan Beberapa Sektor Industri
This Research is an event study that examine abnormal return difference before and after first announcement of covid-19 case in Indonesia. This Study use daily closing price data to calculate returns. We use 30 days estimation period and 20 days window period. The data collection method is purposive sampling. There are 64 companies that meet the establish criteria. Wilcoxon signed rank test and paired sample t-test were used to examine the difference in abnormal return before and after the covid-19 first case announcement in Hotel, Restaurant & Tourism, Banking and telecommunication sector. This study found that there was no difference in abnormal returns before and after the announcement of the first Covid-19 case in Hotel, Restaurant & Tourism and Banking sector. Furthermore, this study found differences in abnormal return before and after the announcement of the first covid 19 case in telecommunication sector. How to Cite:Sari, L., & Bone, H. (2021). Dampak Pengumuman Covid-19 Terhadap Return Saham: Penelaahan Beberapa Sektor Industri. Akuntabilitas: Jurnal Ilmu Akuntansi, 14(2), 269-278.
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