Holdouts (the continuation of negotiations beyond the contract expiry
date) are the most common form of disputes in labor contract negotiati
ons. We model holdouts as a delaying tactic employed by unions to obta
in information about other bargaining outcomes in their industry. Nove
l implications of our model include a positive association between hol
dout duration and the number of bargaining pairs negotiating contracts
simultaneously; bunching of holdout durations within these ''negotiat
ing groups''; and fewer strikes among holdouts which end later in grou
ps. Using a large panel of contract negotiations in Canadian manufactu
ring, we find considerable support for these predictions.