  Given a dynamic ordinal game, we deem a strategy sequentially rational if
there exist a Bernoulli utility function and a conditional probability system
with respect to which the strategy is a maximizer. We establish a complete
class theorem by characterizing sequential rationality via the new Conditional
B-Dominance. Building on this notion, we introduce Iterative Conditional
B-Dominance, which is an iterative elimination procedure that characterizes the
implications of forward induction in the class of games under scrutiny and
selects the unique backward induction outcome in dynamic ordinal games with
perfect information satisfying a genericity condition. Additionally, we show
that Iterative Conditional B-Dominance, as a `forward induction reasoning'
solution concept, captures: $(i)$ the unique backward induction outcome
obtained via sophisticated voting in binary agendas with sequential majority
voting; $(ii)$ farsightedness in dynamic ordinal games derived from social
environments; $(iii)$ a unique outcome in ordinal Money-Burning Games.

Theoretical Economics