Determinant of Bank Buku 4 Performance with Capital Adequacy Ratio as Mediator Variable: Evidence from Indonesia

Purpose: This study aims to determine the determinants of bank BUKU 4 performance. Theoretical framework: Research was conducted on performance banks without taking into account emerging markets in order reevaluate effects NPL, LDR, and SIZE Design/methodology/approach: used secondary data, quarterly data banking companies obtained from website Financial Services Authority (OJK). Using E-views 10 entities; three government (Bank Persero) seven national private 2020 2021. born Bank Indonesia Regulation Business Activities Office Network Based Core Capital. Findings: Sobel Test, it found that CAR does not act as a mediator influence NPL ROA, but can mediate effect LDR ROA. Research, Practical & Social implications: The next researcher who wants research industry develop further by adding new variables such Net Interest Margin (NIM) BOPO. Factors outside company also be added, interest rates inflation. Future done other banks, 1 Bank, 2, or 3. Similar Islamic banking. Originality/value: literally one first works determinant with variable.