Observing the Pattern of Consolidation in U

Multiple Choice

Observing the pattern of consolidation in U.S.industries over time,one will notice that

A) horizontal integration has never been a very popular strategy.
B) firms that horizontally integrate tend to divest later.
C) horizontal integration has been very popular in the last decade.
D) while a few industries have consolidated since 1970,most remain fragmented.
E) mergers were very common and acquisitions were rare from 1900 to 1999.