Walter Williams dá continuidade à sua aula anterior:
"Preferences alone do not determine behavior. If we conducted a survey asking people which they prefer: filet mignon or chuck steak, Rolex watches or Timex, Rolls Royces or Dodge Neons, I'm guessing that filet mignon, Rolex and Rolls Royce would win hands down. Having found what people preferred the most, then watch what they actually do. You would find chuck steak outselling filet mignon, Timex watches outselling Rolex, and Dodge Neons outselling Rolls Royces any day of the week.
To fully understand behavior, we must go beyond preferences and take restrictions on choice into account, namely income and prices. That fact is very relevant to issues of race. Let's look at it. During South Africa's apartheid era, white labor unions that would never have a black as a member were the major supporters of minimum wages for blacks. Their stated intention was to protect white workers from competition with low-wage black workers.
Gert Beetge, secretary of the Building Workers' Union, said, 'There's no job reservation left in the building industry, and in the circumstances, I support the rate for the job [minimum wages] as the second best way of protecting our white artisans.'"
