Journal of Economics Research and Policy Studies
Vol. 6 No. 2 (2026): Journal of Economics Research and Policy Studies

Analisisi perbedaan abnormal return dan trading volume terhadap pergantian menteri keuangan activity: Studi peristiwa pada saham perbankan dan energi

Sulistio Murti Mulyono (Fakultas Ekonomi dan Bisnis, Institut Bisnis Nusantara)
Tita Nurvita (Fakultas Ekonomi dan Bisnis, Institut Bisnis Nusantara)



Article Info

Publish Date
02 Jul 2026

Abstract

Political events, particularly those related to changes in strategic economic positions, often attract investor attention due to their potential to influence economic stability and the direction of a country’s policy. The replacement of the Minister of Finance, as the primary authority in fiscal policy, can trigger market reactions reflected in stock price movements and trading activity. Previous studies have shown that political events and government policies can elicit significant market responses, including abnormal returns and changes in trading volume. In this context, this study analyzes the reaction of the Indonesian capital market to the announcement of the replacement of the Minister of Finance on September 8, 2025, focusing on stocks in the banking and energy sectors. This study employs a quantitative approach using an event study method with an observation window of 31 trading days, consisting of 15 days before, 1 day during, and 15 days after the event, using daily stock prices and trading volume data. The analysis compares conditions before and after the event using nonparametric statistical methods. The results indicate that there is no significant difference in abnormal returns between the two sectors; however, the banking sector shows a significant increase in trading volume. These findings suggest that the market responds more to political events through changes in trading activity rather than abnormal returns.

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Journal Info

Abbrev

jerps

Publisher

Subject

Economics, Econometrics & Finance

Description

Journal of Economics Research and Policy Studies [2797-8141] is a scientific journal that contains the results of theoretical research and studies on economics issues. The focus of this journal article is Economics, Economic Entrepreneurship, and start-up, development economics, monetary and fiscal ...