Pengaruh effisiensi dan konsentrasi pasar terhadap kinerja perbankan yang terdaftar di Bursa Efek indonesia
P enelitian ini bertujuan untuk menguji dan menganalisis pengaruh variabel independen yaitu effisiensi (BOPO) dan konsentrasi pasar (Concentration Ratio 3,Concentration Ratio 5, dan Herfindahl Hierschman Index) terhadap profitabilitas perbankan (Return on Asset). Analisis yang ditampilkan berupa sampel 29 perusahaan perbankan yang terdaftar di Bursa Efek Indonesia selama periode 2009 – 2013. Hasilnya menunjukan bahwa variabel effisiensi (BOPO) berpengaruh negative signifikan terhadap variabel profitabilitas (ROA), dan variabel konsentrasi pasar (Concentration Ratio 3, Concentration Ratio 5 dan Herfindahl Hierschman Index) tidak berpengaruh signifikan terhadap variabel profitabilitas (ROA). Hubungan ini didasarkan pada 2 hipotesa yaitu hipotesa effisiensi dan hipotesa market power.
T his study aims to examine and analyze the effect of independent variables such as efficiency (BOPO) and market concentration (Concentration Ratio 3, Concentration Ratio 5, and Herfindahl Hierschman Index) on bank profitability (Return on Asset). The analysis shows a sample of 29 banking companies listed on the Indonesia Stock Exchange during the period 2009 to 2013. The results show that the efficiency variables (BOPO) have a significant negative effect on profitability (ROA), and market concentration (Concentration Ratio 3, Concentration Ratio 5 and Herfindahl Hierschman Index) have no significant effect on profitability (ROA) variable. This relationship is based on two hypotheses, the efficiency hypothesis and market power hypothesis.