Ms. Mahmood is a retired schoolteacher whose pension income is $25,000 per year. She also receives Social Security income of $5,000 per year. Mr. Little is a young man who does not choose to work. He inherited $600,000 from his Aunt Clara, which he invested in a bond fund that provides a 5 percent return, generating $30,000 income per year. If we are concerned about the equity of taxation, should we consider these two people as equals and tax them equally? Explain why or why not.