The Impact of Interest Rate Differentials, Digital Transformation, BOPO, and Promotional Funds on Third-Party Funds (Jurnal Informatika Ekonomi Bisnis)

Summary

• Superbank Indonesia recorded third-party funds (DPK) growth of 214,43 % (yoy) reaching Rp. 10.390 milyar as of August 2025.p.2
• PT Bank Hibank Indonesia increased its DPK by 48,82 % (yoy) to Rp. 17.910 milyar as of August 2025.p.2
• PT Allo Bank Indonesia Tbk achieved a DPK growth of 46,94 % (yoy) reaching Rp. 25.230 milyar as of August 2025.p.2
• The study analyzed a sample of 7 KBMI 2 banks listed on the Indonesia Stock Exchange for the observation period 2021 to 2025.p.4
• The interest rate differential (SSB) demonstrated a significant negative effect on third-party funds with a p-value of 0.0043.p.1
• The BOPO ratio had a statistically significant negative impact on third-party funds with a p-value of 0.0442.p.1
• Promotional spending showed no significant effect on third-party funds with a p-value of 0.8936.p.1

Key insights

1. Digital banks offer deposit interest rates up to 7-8 %, exceeding conventional bank rates ranging from 0 % to 4 %.p.2
2. Digital transformation has a statistically significant positive impact on third-party funds with a p-value of 0.0000.p.6
3. Interest rate differential negatively impacts third-party funds with a regression coefficient of -0.922010.p.6
4. Operational cost efficiency measured by BOPO shows a negative coefficient of -0.024012 on third-party funds growth.p.6
5. Promotional expenditure shows an insignificant negative coefficient of -0.016674 on third-party funds.p.6
6. The regression model yields an Adjusted R-squared of 0.803757, showing that internal variables explain 83,07% of DPK variation.p.6
7. KBMI 2 banks exhibit a mean BOPO ratio of 104.56 %, indicating overall high operational expenses relative to operating income.p.5