Market reform has dealt a serious blow to traditional alliances between gov
erning parties and labor unions. This article examines the fare of these al
liances by applying a revised version of Albert Hirschman's schema of exit,
voice, and loyalty to party union relations in Mexico, Spain, and Venezuel
a. After refining the concept of loyalty, the author argues that it is embe
dded in the principles and norms on which these alliances are based. Market
reform places parry-affiliated labor leaders in a "loyalty dilemma" in whi
ch they have no choice bur to behave disloyally toward one set of claimants
. Their propensity to respond with either voice or exit depends on their vu
lnerability to reprisals for disloyal behavior and the party's capacity to
retain their loyalty even in the face of sacrifices imposed oil workers and
unions. Both variables are linked to the authority structures in which lab
or and party leaders find themselves. In the short to medium run the allian
ces most Likely to survive are those in which labor leaders have significan
t autonomy from their bases and/or in which the party is able and willing t
o challenge its own executive. In the long run, however, even these allianc
es may be vulnerable to collapse because of popular frustrations with the i
nadequacy of interest representation and the multiple pressures on politica
l organizations to adapt to a more fluid and uncertain environment.