ANALISIS ABNORMAL RETURN SEBELUM DAN SESUDAH PELARANGAN EKSPOR BATU BARA PADA 1 JANUARI 2022

  • Darmawati Darmawati(1)
    Prodi Magister Akuntansi, Fakultas Ekonomi dan Bisnis, Universitas Hasanuddin
  • Syarifuddin Rasyid(2)
    Prodi Magister Akuntansi, Fakultas Ekonomi dan Bisnis, Universitas Hasanuddin
  • Lestari Rezki Nurul Amalia(3*)
    Prodi Magister Akuntansi, Fakultas Ekonomi dan Bisnis, Universitas Hasanuddin
  • Andi Fadhilah Nurazisah(4)
    Prodi Magister Akuntansi, Fakultas Ekonomi dan Bisnis, Universitas Hasanuddin
  • (*) Corresponding Author
Keywords: Abnormal Return, Export Ban, IDX Shares

Abstract

This study aims to analyze the difference in average abnormal stock returns before and after the announcement of the coal export ban on coal mining companies on the Indonesia Stock Exchange (IDX) between August 2021 and January 2022. The method used is an event study with secondary data from Yahoo Finance. The research sample consisted of 20 companies. The analysis used the Shapiro-Wilk normality test, the one-sample Sample T-Test test for normal data, and the Wilcoxon Signed Rank Test for abnormal data. The results showed a significant abnormal return on the days surrounding the announcement of the export ban, but there was no significant difference between the abnormal return before and after the announcement. The limitations of this study are the limited sample and short analysis period. Suggestions for future research are to expand the sample and period and consider external factors that affect abnormal returns.

Keywords: Abnormal Return; Export Ban; IDX Shares

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Published
2024-11-28
How to Cite
Darmawati, D., Rasyid, S., Amalia, L., & Nurazisah, A. (2024). ANALISIS ABNORMAL RETURN SEBELUM DAN SESUDAH PELARANGAN EKSPOR BATU BARA PADA 1 JANUARI 2022. Journal of Management : Small and Medium Enterprises (SMEs), 17(3), 1459-1472. https://doi.org/10.35508/jom.v17i3.19574

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