BCDR International Arbitration ReviewDecember 2015 - Volume 2 - Issue 2Women's Voices in International Arbitration - Part 2Note from the General Editor201ArticlesThe Public Policy Defence to Enforcement of Arbitral Awards: Rising Star or Setting Sun? Funke Adekoya San203From Perpetual Respondent to Aspiring Counterclaimant? State Counterclaims in the New Wave of Investment Treaties Ina C. Popova & Fiona Poon223Proportionality in Investment Treaty Arbitration and Beyond: An "Irresistible Attraction"? Carmen Martinez Lopez & Lucy Martinez261Contribution to the Host State Development: A Marginalised Criterion? Dalia Hussein289Towards Greater Gender and Ethnic Diversity in International Arbitration Samaa A. F. Haridi305Mediation: A New International Playing Field Bronwyn Lincoln317Striking the Right Balance: The Roles of Arbitral Institutions, Parties and Tribunals in Achieving Efficiency in International Arbitration Anne Véronique Schläpfer & Marily Paralika329The IBA Guidelines on Party Representation in International Arbitration: A Plea for Caution Domitille Baizeau343An Arbitrator's Duties: Due Process and Trust in Investor-State Arbitration Carolyn B. Lamm, Eckhard R. Hellbeck & David P. Riesenberg357Enforcement of ICSID Awards in the United States Nicole Duclos & Erin Thomas373The Arbitration Clause and State Immunity Under French Law Ana Atallah389