This book presents the econometric analysis of single-equation and
simultaneous-equation models in which the jointly dependent variables
can be continuous, categorical, or truncated. Despite the traditional
emphasis on continuous variables in econometrics, many of the economic
variables encountered in practice are categorical (those for which a
suitable category can be found but where no actual measurement exists)
or truncated (those that can be observed only in certain ranges). Such
variables are involved, for example, in models of occupational choice,
choice of tenure in housing, and choice of type of schooling. Models
with regulated prices and rationing, and models for program evaluation,
also represent areas of application for the techniques presented by the
author.