Lo ius controversum di D. 13.5.27: alcune osservazioni a margine di un'antica disputa

After being shrouded in mystery for a long time, the receptum argentarii (the promise of payment issued by a Roman banker) has been partially unveiled by Lenel's researches on the original structure and contents of the Roman sources. Among the texts about the receptum identified by Lenel, a pivotal role is played by D. 13.5.27 (Ulp. 14 ad ed.), which shows a doctrinal dispute between Labeo, on the one hand, and Pomponius and Ulpian, on the other hand. The essay investigates the reasons underlying this dissensio, examining the principal scholarly theories and aiming at the formulation of new ones, thus attempting to clarify the relation between receptum argentarii and voluntas domini, in particular as far as the Roman banker's recourse is concerned.