Abstract: Provided is a method for producing at least one type of thermoplastic resin selected from polycarbonate, polyester and polyester carbonate. The method includes a step of subjecting a dihydroxy compound and diaryl carbonate and/or dicarboxylic acid ester to melt polycondensation in the presence of a transesterification catalyst selected from a compound represented by formula (1) and/or formula (2). In formula (1), R1 to R24 are each a hydrogen atom, an alkyl group having 1-10 carbon atoms or a cycloalkyl group. Some of the carbon atoms may be substituted by heteroatoms. Among R1 to R24, alkyl groups or the like substituted on the same N atom may bond to each other to form a ring. The values of a to d are each 0 or 1. X? is a monovalent anion. In formula (2), Ar1 to Ar12 are each a substituted or unsubstituted aryl group. M? is a monovalent anion.