{"title":"Does the Pandemic Declaration influence the Firm Value of the Untact Firms?","authors":"Su-Kyu Park, Jin-Hyung Cho","doi":"10.32599/apjb.13.1.202203.247","DOIUrl":null,"url":null,"abstract":"Purpose The purpose of this study is to examine the impact of the Pandamic Declaration on ‘untact firms’ listed in KOSPI and KOSDAQ market in order to verify Investor Mania Hypothesis. Design/methodology/approach This study collected financial data for 44 untact firms in KOSPI and KOSDAQ market. Then, we employed ESM(Event Study Methodology), EGARCH model and DID(Difference-In-Difference) for analysis. Findings - First, in contrast with the benchmarking index, KOSPI 200 which shows a negative (-) abnormal return trend, the untact firms have positive abnormal return trend consistently. Second, after the Pandemic Declaration, the variability of abnormal return for the untact firms is found to be significantly positive. Third, we find that the cumulative abnormal return and volatility of the untact firms significantly increase after the Pandemic Declaration. Research implications or Originality - Based on the Investor Mania Hypothesis, we confirm that the market potential of untact firms after the Pandemic Declaration is observed when compared with the KOSPI 200.","PeriodicalId":310482,"journal":{"name":"The Institute of Management and Economy Research","volume":"9 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2022-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"The Institute of Management and Economy Research","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.32599/apjb.13.1.202203.247","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Purpose The purpose of this study is to examine the impact of the Pandamic Declaration on ‘untact firms’ listed in KOSPI and KOSDAQ market in order to verify Investor Mania Hypothesis. Design/methodology/approach This study collected financial data for 44 untact firms in KOSPI and KOSDAQ market. Then, we employed ESM(Event Study Methodology), EGARCH model and DID(Difference-In-Difference) for analysis. Findings - First, in contrast with the benchmarking index, KOSPI 200 which shows a negative (-) abnormal return trend, the untact firms have positive abnormal return trend consistently. Second, after the Pandemic Declaration, the variability of abnormal return for the untact firms is found to be significantly positive. Third, we find that the cumulative abnormal return and volatility of the untact firms significantly increase after the Pandemic Declaration. Research implications or Originality - Based on the Investor Mania Hypothesis, we confirm that the market potential of untact firms after the Pandemic Declaration is observed when compared with the KOSPI 200.
本研究的目的是检验《流行病宣言》对在韩国综合股价指数和KOSDAQ市场上市的“非接触公司”的影响,以验证投资者狂热假说。设计/方法/方法本研究收集了KOSPI和KOSDAQ市场44家未上市公司的财务数据。然后,我们采用ESM(Event Study Methodology)、EGARCH模型和DID(Difference-In-Difference)进行分析。▽结果=首先,与基准指数KOSPI 200呈现负(-)异常收益趋势相反,非接触企业的异常收益趋势始终为正。其次,在大流行宣布后,发现未接触企业的异常回报变异性显着为正。第三,非接触企业的累积异常收益和波动率在疫情宣布后显著增加。▽研究意义或独创性=根据“投资者狂热假说”,与KOSPI 200指数进行比较,确认了宣布疫情后未受影响的企业的市场潜力。