For Better of for Worse: Dynamic Logics of Preference
Johan van Benthem

Abstract:
In the last few years, preference logic and in particular, the 
dynamic logic of preference change, has suddenly become a live 
topic in my Amsterdam and Stanford environments. At the request 
of the editors Sven Ove Hanson and Till Gruene-Yanof of the new
book "Preference Change" (Springer Theory and Decision Library), 
this article explains how this interest came about, and what is happening. I mainly present a story around some recent disser-
tations and supporting papers on dynamic logics of preference 
change and preference merge, as well as some other aspects of 
rational agency and decision, linking logic, philosophy, game
theory, computer science, and optimality theory in linguistics.