ABSTRAK
Termotivasi dari debat mengenai konsolidasi bank dan prediksi mengenaihubungan konsentrasi perbankan dan stabilitas bank, penelitian inimenginvestigasi pengaruh konsentrasi industri perbankan terhadap stabilitas bankdi Indonesia periode 2005-2012. Dengan menggunakan random effect model,terbukti bahwa konsentrasi industri perbankan berpengaruh negatif dan signifikanterhadap stabilitas bank. Hasil tersebut sesuai dengan teori concentration-fragility.Namun, hubungan tersebut ternyata hanya terjadi pada ukuran bank besar dimanamengindikasikan terdapat perilaku Too-Big-To-Fail (TBTF) pada bank-bankbesar di Indonesia.

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ABSTRACT
Motivated by the debate regarding the consolidations of banks and conflictingpredictions about the relationship between bank concentration and bankingstability, this research investigates the effect of concentration in banking industrytowards banking stability in Indonesia during 2005-2012 period. By using randomeffect model, it is proven that there is significantly negative effect ofconcentration in banking industry to banking stability. Those results are consistentwith the concentration-fragility theory. However, this result only accured on bigbanks which indicates the Too-Big-To-Fail (TBTF) behavior on big banks inIndonesia.