In 1994 Pentium users around the world learned that their $4.00 pocket calculators could perform some operations more accurately than their $5,000 desktop computers. It took several months before Intel-the maker of the chip-agreed to offer its customers replacement chips. In contrast, Walmart guarantees satisfaction to all customers, with a "no questions asked" return policy on nearly all of the products it sells. Why do you think these firms employ such different consumer relations policies?