Hidden Generalizations is the first monograph devoted exclusively to
the problem of phonological opacity. Opacity arises when the conditions
for or results of an active phonological process are not evident in the
speech signal. Opacity is particularly important in Optimality Theory,
which lacks the standard means of analyzing opacity, rule ordering.
This book is a thorough reexamination of phonological opacity. It finds
insights in the extensive literature on rule interaction of the 1970s.
It describes and critiques the oft-voiced opinion that there are no
authentic cases of opacity. It evaluates representational approaches to
opacity that emerged in the 1980s. Primarily, though, it discusses
various ideas about opacity in OT and offers a new proposal, candidate
chain theory. This proposal is illustrated and tested with analyses of
the phonology of several Semitic languages.