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The Effect of World Oil Price Returns, Inflation Returns, and Interest Rate Returns on JCI Returns on the IDX for the Period 2020-2024 Eksanti Nishandini; Tanti Sugiharti; Ria Wulandari
International Journal of Economics and Management Research Vol. 5 No. 1 (2026): April: International Journal of Economics and Management Research
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/ijemr.v5i1.704

Abstract

The purpose of this study is to analyze the relationship between world oil price returns, inflation returns, and interest rate returns and the performance of the Jakarta Composite Index (JCI) on the Indonesia Stock Exchange from 2020 to 2024. This study applies a quantitative approach using 60 monthly secondary data observations covering the entire research period. The sampling technique used is saturated sampling. Data analysis in this study was conducted using multiple linear regression to test the effect of each independent variable on the JCI return. The results show that world oil price returns have a positive and significant effect on the JCI return. Meanwhile, inflation returns and interest rate returns did not show a significant partial effect on JCI returns. However, simultaneously, these three variables were found to have a significant effect on JCI returns. The adjusted R-squared value of 0.345 indicates that the research model is able to explain 34.5 percent of the variation in JCI returns, while the rest is influenced by factors outside the research model.
The Role of Leadership in Driving Performance and Sustainability in Social Enterprises: A Qualitative Systematic Literature Review of Theoretical and Empirical Insights Tanti Sugiharti Singgih; A. Sigit Pramono Hadi
Journal of Economic and Leadership Vol. 2 No. 2 (2025): September : Journal of Economic and Leadership
Publisher : LPPM STIE Kasih Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70142/jbl.v2i2.64

Abstract

This study examines the role of leadership in driving organizational performance and sustainability within social enterprises through a qualitative systematic literature review of theoretical and empirical studies published up to 2024. Drawing on leadership theories such as transformational, servant, and ethical leadership, the review synthesizes how leadership practices influence both financial and social value creation. The findings reveal that effective leadership in social enterprises is characterized by mission alignment, stakeholder engagement, and the ability to balance dual objectives of economic viability and social impact. Furthermore, leadership contributes to long term sustainability by fostering innovation, resilience, and adaptive governance mechanisms. The review also highlights contextual factors, including institutional environments and resource constraints, that shape leadership effectiveness. This study provides integrative insights for scholars and practitioners seeking to enhance leadership strategies in hybrid organizational settings.