Ch.11 Plurality of obligors and of obligees, s.1: Plurality of Obligors, Art.11.1.10
This commentary analyses Article 11.1.10 of the UNIDROIT Principles of International Commercial Contracts (PICC) concerning the extent of contributory claim of the performing obligor against its co-obligors. In a contractual setting, joint and several obligations arise because the obligors obliged themselves by a common commitment towards the obligee or by separate commitments in the knowledge of the commitments of the other obligors. Contribution between joint and several obligors is a generally accepted principle. Art 11.1.10 provides for a personal claim of the performing obligor against its co-obligors. According to this provision, a joint and several obligor who has performed more than its share may claim the excess from any of the other obligors to the extent of each obligor's unperformed share. This commentary considers the obligor's contractual claim to contribution, performance of more than its share, and contribution in money. It also addresses the amount of the contributory claim, costs and interest, duties before performance, and burden of proof relating to contributory claim.