âThe Pandemic Is a Prisonerâs Dilemma Gameâ Using game theory, researchers modeled two ways of prioritizing vaccinations, to see which saved more lives. Madhur Anand, an ecologist, right, and Chris Bauch, a mathematical biologist, focus their research on the interplay between human behavior and environment systems.Credit...Ian Willms for The New York Times By Siobhan Roberts Dec. 20, 2020 Madhur Anand, an ecologist, and her husband, Chris Bauch, a mathematical biologist, were optimally situated during the spring lockdown, working from home in Guelph, Ontario, to watch the pandemic play out â and to discuss patterns of behavior, within their community and beyond, as we all tried to keep safe and carry on.