As a general rule, product extension seems to work best when the consumer target market for the product is alike across countries and cultures-that is, consumers share the same desires, needs, and use for the product.
Product extension means when any existing brand launches new products in a same category which already exist.
Target market is a group of customers for which the product and services are aimed.
Across country means the geographical area from one side of a country to the other side for a target market.
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