Roberta Piermartini is Chief of Trade Costs Analysis at the WTO. She has coordinated the WTO-WB joint publications on Trade and Women as well as previous joint publications on Trade and Poverty. She is one of the lead authors and coordinators of World Trade Report -the flagship publication of the WTO. She is expert on trade and trade policy analysis. Her papers have been published in The American Economic Journal, Journal of International Economics among others and various books. She is author of "A Practical Guide to Trade Policy Modelling" and "An Advanced Guide to trade Policy Modelling." She has served the WTO Dispute Settlement in several Panel and Arbitration cases. Her work has been covered by The Economist and Le Monde. Prior to joining the WTO in 2000, she was lecturer in economics and statistics at the University of Southampton and research fellow in the research division of Confindustria. She also has been teaching at the University of Geneva and LUISS. She holds a PhD in Economics from the University of Southampton.