Personal Income and Quality Purchase Proposition 12.1 1. If the low-income consumer buys the high quality brand, then the high-income Consumer 2. definitely buys the high-quality brand 3. If the high-income consumer buys the low- quality brand, then the low-income consumer definitely buys the low-quality brandPersonal Income and Quality Purchase Proposition 12.1 1. If the low-income consumer buys the high￾quality brand, then the high-income Consumer 2. definitely buys the high-quality brand. 3. If the high-income consumer buys the low￾quality brand, then the low-income consumer definitely buys the low-quality brand