Brand Extensions

Many times, firms take advantage of their popular, well-known brands by developing brand extensions, because they know that the brand equity of the original or parent brand will be transferred to the new product. If a new product is of poor quality, it can damage the reputation of the parent brand, whereas a new product that is of superior quality can enhance the parent brand’s reputation. What are some examples of brand extensions that have damaged and that have enhanced the parent brand equity? Cite aspects of the brand extension that you believe were most detrimental/helpful.