Problem
The Marriott Corporation is in the following businesses, among others:
a) Hotels of different types
b) Long-stay residential hotels
c) Luxury resorts
d) Time-share properties
e) Airline catering
f) Institutional food services
g) Franchised operations
h) Credit card tie-ins
i) Travel operations
Given the above listing, would you say that Marriott's business lineup reflects a strategy of related or unrelated diversification? Explain your answer in terms of the extent to which the value chains of Marriott's different businesses seem to have competitively valuable cross-business relationships.