Rapid-Built Homes specializes in low-cost prefabricated, modular homes that can be erected in a mat-ter of days anywhere in the country. Rapid-Built focuses on entire subdivisions of homes developed by real estate speculators. ModernModular Homes (ModMod) specializes in modular homes designed by architects which can be built anywhere in the country. The buyers usually build the home themselves from kits on their own lots. ModMod sells fewer than 100 house kits per year. ModMod is run by two professors of architecture as a sideline business. According to the "Framework of Competitive Analys-is," we can say that Rapid-Built and ModMod:. a. are direct mutually-acknowledged competitors.
b. have high resource similarity.
c. have high market commonality.
d. are probably not engaged in intense competitive rivalry.

D, are probably not engaged in intense competitive rivalry

Explanation:

A competitive analysis framework or framework of competitive analysis can be said to be an analysis model that is used to examine a competitor market structure. This in turn helps you to properly prepare or structure your market analysis.

There are about 5 competitive analysis frameworks. They include SWOT(strength Weakness Opportunity Threats), Porter's five forces, Strategic group analysis, growth share matrix, perceptual mapping.

In the case of Rapid-Built Homes and ModMod, they are not exactly involved in intense competitive rivalry because while Rapid-Built homes is a developed by real estate speculators, ModMod is a side business for two architecture professors. This means that selling of housing units by Rapid-Builts is the source of main income for the company while for ModMod, is it not the main source of income for the professors.

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explanation:

answer; rapid growth in buyer demand and high buyer switching cost;