In
business, a group, business group, corporate group, or (sometimes) alliance is a hybrid organizational form between a
firm and
market: typically, a cluster of legally distinct firms with a managerial relationship. The relationship between the firms in a group may be formal or informal. A
keiretsu is one type of business group. When a business group exists as a legal entity itself, it may be a type of
conglomerate or
holding company.
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