To curate an ongoing dialog regarding issues around creating, disseminating, sharing, evaluating, and updating open source cost-effectiveness and comparative effectiveness models.


  • Define the issues surrounding open source models
  • Improve model transparency, updating, idea exchange, currency, and policy development
  • Provide a centralized platform to facilitate discussion and dissemination of information on the topic of open source models


The world is moving towards more openness, sharing, and collaboration. There has been a marked growth in open science; however, there is currently no efficient process for creating, sharing, evaluating, and updating health economic models. This situation can result in the expensive re-creation of existing models or the inappropriate use of outdated models. Moreover, models are often not updated at all. To address these issues, certain institutions have begun to promote and encourage access to open source models and some journals make models available to reviewers upon their request. However, it is unclear how these various groups will encourage widespread model openness and transparency in a repository or otherwise, given intellectual property (IP) rights, costs to initiate and sustain, and legal, information technology, and other issues surrounding such an endeavor. This Special Interest Group has therefore been founded to address these and other challenges and aspects related to the concept of open source models.



Stephanie Harvard

Postdoctoral Fellow, University of British Columbia
Vancouver, BC, Canada


Xavier Pouwels, MSc

Assistant Professor, University of Twente
Enschede, OV, Netherlands

Past Chair

Raymond Henderson

Senior HTA Manager, Salutem Insights Ltd
Portlaoise, LS, Ireland

Working Groups

Member Engagement

These activities allow for a variety of members to participate and also facilitates disseminating content in Webinars, Journal Clubs, Conference Sessions, etc.


Renée Arnold, PharmD, RPh

Adjunct Full Professor, Icahn School of Medicine at Mount Sinai
Miami Beach, FL, United States

Ramesh Bhandari

Asst. Professor, KLE College of Pharmacy, KAHER, Belagavi
Belagavi, KA, India

Talitha Feenstra, PhD

Associate Professor, Groningen University/RIVM
Eelderwolde, DR, Netherlands

Ron Handels

assistant professor, Maastricht University
maastricht, LI, Netherlands

Chris Sampson, MSc, BA

Senior Principal Economist, Office of Health Economics
London, LON, United Kingdom

Tim Wrightson, BSc

Editor, Applied Health Economics and Health Policy, PharmacoEconomics, Adis Journals
Auckland, AUK, New Zealand

Questions or ideas? Please send an email to opensourcesig@ISPOR.org
Your browser is out-of-date

ISPOR recommends that you update your browser for more security, speed and the best experience on ispor.org. Update my browser now