TY - JOUR T1 - Banking competition in a context of regulatory transformation: a multi-product stochastic frontier approach JO - Estudos Econômicos (São Paulo) A1 - OLIVEIRA, Carolina Bittencourt Amui de A1 - SCALCO, Paulo Roberto SN - 0101-4161 UL - 10.1590/1980-53575631cops VL - 56 Y1 - 2026 PB - Brasil ER -