The authors are grateful to the model's author, Mr. Luis Martinez, Modeller and Analyst at the ITF. For editorial support the authors thank Ms. Edwina Collins, Content Production Co-ordinator, ITF, Ms. Katherine Farrow, Modeller and Analyst, ITF, and Michael Kloth, Head of Communications, ITF. Further support was provided by Mr. Luke Mackle, Consultant, and Ms. Tabea Klang, former Consultant, both of the Eurasia division. Final editorial and visual support was provided by Ms Vanessa Berry-Chatelain, Communications Manager, OECD Global Relations Secretariat.