The time series properties of mergers and acquisitions are investigate
d in the UK at sectoral level for the period 1971:1-1989:4. Two main s
ets of results emerge: (1) 1971:1-1989:4 the degree of persistence to
shocks is uniformly low across sectors; (2) shocks are predominately a
ggregate. These two sets of results indicate that further analysis rel
ying on aggregate data and short-term explanatory factors may be relev
ant.