Person using calculator next to computer and arbitration scales

Comparing Approaches to Calculating Compensation: Lessons for investment arbitration reform

This webinar launched a new IISD paper comparing approaches used to determine compensation awards in investment arbitration with those of other international courts and discuss the implications for investor–state dispute settlement reform.

June 2, 2022 10:00 am - 11:30 am CEST

(Open to public)

In recent years, investorstate arbitral tribunals have awarded increasingly high amounts of compensation to foreign investors—exacerbating the negative socio-economic impact of investment treaties in practice. Because of this, the approaches used by arbitral tribunals to determine compensation amounts are drawing ever-greater scrutiny from policy-makers, academia, and civil society.

One question that has emerged is this: How are compensation awards being calculated elsewhere? This webinar marked the launch of a brand new IISD policy paper that seeks to answer this question. Approaches of International Courts and Tribunals to the Award of Compensation in International Private Property Cases examines how other international courts and tribunals approach the awarding of compensation in international property claims cases.

The paper explores and compares practices of the Permanent Court of International Justice, the International Court of Justice, and the European Court of Human Rights, among others, drawing out lessons and innovations applicable to international investment arbitration reform.

This webinar brought together the paper's lead author, Esmé Shirlow, and three distinguished speakers to discuss the paper and its implications for the ongoing reform of investorstate dispute settlement.



  • Sarah Brewin, Senior Law Advisor and Coordinator of Advisory Services, Economic Law and Policy Program, IISD


  • Esmé Shirlow, Associate Professor, Australian National University School of Law; Report Author
  • Simon Batifort, Partner and Brussels Managing Partner at Curtis, Mallet-Prevost, Colt & Mosle LLP
  • Veronika Fikfak, Associate Professor in Human Rights Law at the Centre of Excellence for International Courts at the University of Copenhagen
  • Martins Paparinskis, Reader in Public International Law at the Faculty of Laws, University College London

IISD’s new research paper

We asked Esmé Shirlow about the paper and what lessons could be drawn from this comparative research. Watch what she had to say:

Interested in learning more?

This webinar is the fourth in IISD’s webinar series on compensation under international investment law, following on from:

IISD aims to continue exploring this topic with further webinars throughout 2022. In addition to the paper that will be launched at this event, IISD has also published: