This collection of papers is an outgrowth of the "Game Practice I" th th
conference held in Genoa from 28 to 30 June 1998. More precisely, it is
the result of the call for papers that was issued in association with
that conference: actually, nearly half of the contributions to this book
are papers that were presented in Genoa. The name chosen for the
conference and for this book is in evident and provocative contrast with
"Game Theory" this choice needs some explanation, and to that we shall
devote a few words of this Preface. Let us say at the outset that "Game
Practice" would not exist without Game Theory. As one can see, the
overall content of this book is firmly rooted in the existing Game
Theory. It could be hardly otherwise, given the success and influence of
Game Theory (just think of the basic issues in Economic Theory), and the
tremendous development that has taken place within Game Theory. This
success, however, makes even more evident the existence of problems with
respect to the verification of the theory. This is patent from the point
of view of the predictive value of Game Theory (the "positive" side): a
lot of experimental and observational evidence demon- strates that there
is a large gap between theory and "practice".