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All Journal Jurnal Ilmiah Wahana Pendidikan Indonesian Research Journal on Education
Sedek, Melki
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The Influence Of Inflation, And Interest Rate Levels On The Stock Price Index Of The Indonesian Stock Exchange Grasela, Yemima; Ompusunggu, Dicky Perwira; Suherman, Suherman; Doti, Aprilya; Pasha, Audina Walia; Sedek, Melki
Jurnal Ilmiah Wahana Pendidikan Vol 11 No 12.A (2025): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

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Abstract

Macroeconomic changes in Indonesia will greatly affect the Indonesian economy and all industries throughout Indonesia. The capital market is a driver of the national economy through its role as a source of corporate financing and another way for investors to invest. In the capital market, the Composite Stock Price Index (IHSG) plays a crucial role because this index can be a barometer of economic health in a country. High inflation, interest rates will lower stock prices. This study aims to see the impact of inflation and interest rates on the Composite Stock Price Index (IHSG) on the Indonesia Stock Exchange (IDX). The analysis method uses an example of multiple linear analysis. The data used in this study means annual data for the period 1993-2023. The first hypothesis test was accepted and an inflation value of 0.021 was obtained. The results of the second hypothesis test were accepted and obtained from the interest rate value of 0.001. From the statistics, it was concluded that the inflation variable had a negative and significant effect on the IHSG. The interest rate variable had a negative and significant effect on the IHSG. Simultaneously, the independent variables, namely inflation, exchange rates and interest rates, had a significant effect on the IHSG. Through this study, we can conclude that macroeconomic changes, especially inflation and interest rates, have a significant impact on the IHSG convoy at the Indonesia Stock Exchange. Changes in these factors can affect investor sentiment and thus, hypnotize overall stock prices. Therefore, stakeholders in the capital market need to pay close attention to macroeconomic developments, including inflation rates and interest rates, in making investment decisions.
Pengaruh Bahan Tambah Gula Putih dan Gula Merah pada Slurry Cement Terhadap Compressive Strength pada Semen Pemboran Sulardi, Sulardi; Sedek, Melki; Ulfah, Baiq Maulinda
Indonesian Research Journal on Education Vol. 6 No. 1 (2026): Irje 2026
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/irje.v6i1.3988

Abstract

Oil well cement adalah semen yang digunakan dalam industri perminyakan khususnya dalam operasi penyemenan sumur pengeboran. Semen ini merupakan jenis semen Portland dan bersifat anhydrous, dalam arti komponen dalam semen akan pecah dan membentuk komponen hidrat saat bertemu air dan kemudian secara perlahan akan mengeras. Dalam pembuatan suspensi semen dan pada saat operasi penyemenan, sifat fisik suspensi semen harus selalu diperhatikan karena akan berpengaruh terhadap kualitas hasil penyemenan. Penelitian dilakukan dalam skala laboratorium berdasarkan eksperimen untuk menguji sifat fisik semen pemboran. Percobaan yang dilakukan bertujuan untuk menguji kekuatan tekan batuan semen dan setting time berupa initial setting time dan final setting time yang diperlukan oleh suspensi semen untuk mengeras sebagai akibat penambahan aditif berbahan dasar glukosa.. Metode yang digunakan pada penelitian ini adalah pengujian compressive strength menggunakan pengukur dengan alat hydrolic press. Hasil penelitian pada variasi komposisi 0,02% gula merah dengan 2.299,16 psi, pada variasi komposisi 0,02% gula putih dengan 2.492,56 psi, dan pada kombinasi gula merah 0,02% + gula putih 0,02% mengalami peningkatan drastis 4.569,70 psi. Ketiga hasil uji kekuatan sampel tersebut telah memenuhi standar compressive strength API yaitu sebesar 500 psi.
Co-Authors Dicky Perwira Ompusunggu Doti, Aprilya Grasela, Yemima Pasha, Audina Walia Suherman, Suherman Sulardi . Ulfah, Baiq Maulinda