The traditional model of sequential decision making, for instance, in extensive form games, is a tree. Most texts define a tree as a connected directed graph without loops and a distinguished node, called the root. But an abstract graph is not a domain for decision theory. Decision theory...

We correct a misspecified property in "Trees and Extensive Forms'', Journal of Economic Theory 143 (2008), 216-250. As a consequence a few proofs need to be adjusted, and a few statements need to be adapted. Two minor results, which are not needed for the proofs of the main results, do not hold...

This book treats extensive form game theory in full generality. It provides a framework that does not rely on any finiteness assumptions at all, yet covers the finite case. The presentation starts by identifying the appropriate concept of a game tree. This concept represents a synthesis of...