Jurisdiction on Set-off Defences and Counterclaims - Arbitration: The International Journal of Arbitration, Mediation and Dispute Management View Jurisdiction on Set-off Defences and Counterclaims by - Arbitration: The International Journal of Arbitration, Mediation and Dispute Management Jurisdiction on Set-off Defences and Counterclaims 67 2 Arbitration: The International Journal of Arbitration, Mediation and Dispute Management