This document discusses product line stretching and brand extension strategies. It provides examples of each strategy's success and failure. Product line stretching involves adding new products within an existing product range that have additional or different features. Converse is given as an example of success, gradually adding new styles over decades to target broader audiences while maintaining the brand. Croc's failure is analyzed, with mistakes including over-saturating the market, undermining exclusivity, and trying to target all consumers. Brand extension involves using an established brand name in a new product category. Ralph Lauren extended its Polo brand successfully to home goods. In contrast, BIC's extension to women's pantyhose caused confusion as the products lacked