We examine cyclicality of strike frequency and incidence, using
Canadian data on strikes and contracts. Total strike frequency exhibits
significant procyclicality, to which within-contract strikes contribute
appreciably. Evidence is weaker for procyclical behavior of
contract-expiry strikes, both in total and disaggregated by issue.
Strike incidence is also procyclical, particularly in manufacturing,
though the procyclicality here is confined to strikes over nonwage
issues. These results mirror those obtained by analyzing the frequency
of strikes in the contract data. Industry-specific cyclical variables
positively affect strike incidence in manufacturing, but region-specific
variables have no effect.