Bill is a yacht broker in the southeastern united states. for years he has had difficulty selling large yachts locally because there were few places to dock these boats. yachts and spaces to dock them are an example ofa. substitute products. b. purely competitive products. c. status quo pricing products. d.complementary products. e. competitive parity products

.D.complementary products

Explanation:

A complementary good is a product whose usage is dependent on the availability of another. Complementary goods are, therefore, goods that are used together.  For example, A and B will be complimentary goods if the use of A will require the use of B.

Yachts and docks are complementary products because a yacht will require a dock as the base of its operation.  Without a dock, yacht operations will be almost impossible. Bill is not making good sales on big yachts because potential customers cannot find sufficient docking space. Other examples of complementary goods are car and petrol,  printers and ink cartridges, guns and bullets, and DVD players and DVD disks.

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