When people are poor, their diet is monotonous and consumed in the cheapest way possible (Clark, G. (2007); “A farewell to alms: A brief economic history of the world”). Clark discusses how ordinary people in poorer societies spend inordinate amount of time talking about meat, and how meat is traded for sexual favors. When poorer people scale up the ladder to become the middle class, they increase demand for food variety driving up prices (Skynews.com.au; accessed March 8, 2011).