McDonald's culture, with an emphasis on cleanliness, consistency, service, and the training that reinforces the value of these characteristics, illustrates which of the following criteria for sustainable competitive advantage? a. Rare b. Valuable c. Costly to imitate d. Nonsubstitutable

Apopular low-cost airline, parson corp., has gone out of business. although the service and price provided by the airline was what customers wanted, the larger airlines were able to drive the low-cost airline out of business through an aggressive price war. which component of the competitive environment does this illustrate?