Game Theory is a sub-branch of economics. In fact, Economics Stack Exchange has many questions tagged with game-theory. We also have some questions tagged with this tag. However, to me, given that I'm not an expert in this topic (I only know about minimax and similar adversarial search algorithms applied to solve games like tic-tac-toe in the context of AI), it's not clear to what extent questions about game theory should be on-topic on Artificial Intelligence SE.
So, I was wondering whether we should explicitly mention "Game Theory" under our topics on our on-topic page. If not, do you think that something related to game theory that is also related to AI (such as "adversarial search") should be explicitly mentioned in our on-topic page? Note that our on-topic page already mentions "search".