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All Journal Indonesia Economic Journal
Dini Nurhandayani
Universitas Muhammadiyah Bandung
Economics, Econometrics & Finance

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Pengaruh Capital Adequacy Ratio (CAR), Non-Performing Financing (NPF) dan Financing to Deposit Ratio (FDR) Terhadap Profitabilitas pada Bank Umum Syariah yang Terdaftar dalam Statistik Perbankan Syariah OJK Periode 2020–2024 Meilanie Tri Pratiwi; Fadlillah Ramadhan; Dini Nurhandayani; Kylla Almira Rahma Fadzillah; Alfiana
Indonesia Economic Journal Vol. 2 No. 1 (2026): JANUARI-JUNI
Publisher : Indo Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63822/s04js580

Abstract

This study aims to determine and analyze the effect of the Capital Adequacy Ratio (CAR), Non-Performing Financing (NPF), and Financing to Deposit Ratio (FDR) on Profitability in Islamic Commercial Banks registered with the Financial Services Authority (OJK) for the 2020-2024 period. Profitability in this study uses the Return on Assets (ROA) ratio. The population used in this study was 14 Islamic Commercial Banks and a sample of 6 samples was taken using a purposive sampling method. Data analysis techniques used in this study were the results of the model selection test, the results of the panel data regression model estimation, the results of the classical assumption test, and the results of the hypothesis test. The results of the analysis from the tests that have been carried out indicate that the Capital Adequacy Ratio (CAR) affects Return on Assets (ROA), Non-Performing Financing (NPF) does not affect Return on Assets (ROA), and the Financing to Deposit Ratio (FDR) affects Return on Assets (ROA). Meanwhile, the results of simultaneous testing showed that the Capital Adequacy Ratio (CAR), Non-Performing Financing (NPF), and Financing to Deposit Ratio (FDR) had an effect on Return on Assets (ROA).  
Pengaruh Paritas Daya Beli, Paritas Suku Bunga Terhadap Nilai Tukar Rupiah Dan Dollar Amerika Serikat Periode 2020-2024 Dini Nurhandayani; Pujiyanti Pujiyanti; Yusup Murdani; Perwito Perwito
Indonesia Economic Journal Vol. 2 No. 1 (2026): JANUARI-JUNI
Publisher : Indo Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63822/wr6e4125

Abstract

Exchange rates react to changes in inflation and interest rates. There are at least three theories explaining the relationship between inflation, interest rates, and exchange rates: purchasing power parity, interest rate parity, and the international Fisher effect. This study aims to examine the influence of purchasing power parity, interest rate parity, and the international Fisher effect on the rupiah exchange rate against the US dollar. The study population includes time series data on inflation, nominal interest rates, real interest rates, and the rupiah exchange rate. Secondary data used are quarterly reports on inflation, nominal interest rates, real interest rates, and the rupiah exchange rate. The independent variables used are purchasing power parity, interest rate parity, and the international Fisher effect. Meanwhile, the dependent variable used is the rupiah exchange rate against the US dollar. The results of this study indicate that purchasing power parity and interest rate parity simultaneously have a significant influence on the rupiah/US dollar exchange rate.
Pengaruh Gross Profit Margin (GPM) Dan Debt To Equity Ratio (DER) Terhadap Return On Assets (ROA)  Pada Perusahaan Industri Batubara Yang Terdaftar Di BEI Periode 2020-2024 Fadlillah Ramadhan; Meilanie Tri Pratiwi; Kylla Almira Rahma Fadzillah; Dini Nurhandayani; Alfiana Alfiana
Indonesia Economic Journal Vol. 2 No. 1 (2026): JANUARI-JUNI
Publisher : Indo Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63822/rcmbhw33

Abstract

This study aims to examine the effect of Gross Profit Margin (GPM) and Debt to Equity Ratio (DER) on Return on Assets (ROA) of coal industry companies listed on the Indonesia Stock Exchange during the 2020–2024 period. This study applies a quantitative approach with a descriptive research design. The data used are secondary data obtained from annual financial statements and analyzed using panel data regression. Based on the model selection results using the Chow test and Hausman test, the Random Effect Model was selected as the best estimation model. The results show that partially GPM has a positive and significant effect on ROA, while DER has a negative and significant effect on ROA. Simultaneously, GPM and DER have a significant effect on ROA. The R-squared value of 0.653058 indicates that GPM and DER explain 65.31% of the variation in ROA, while the remaining variation is explained by other variables outside the model. This study is expected to provide empirical evidence in analyzing profitability performance in coal industry companies.
Co-Authors Alfiana Fadlillah Ramadhan Kylla Almira Rahma Fadzillah Meilanie Tri Pratiwi Perwito Perwito Pujiyanti Pujiyanti Yusup Murdani