A well-known saying “There is no such thing as a free lunch” belongs to Milton Friedman, Nobel Peace Prize winner in Economic Sciences (Tucker, 2008, p. 27). This phrase poses a key question whether or not something can be free. “Free lunch” appeared during a period in history when bars and saloons in America started attracting their customers by offering them free lunch (Riley, 2006). Obviously, they sacrificed money for lunch knowing about the trade-off on drinks their customers would order.
It refers to such economic concepts like opportunity cost and scarcity of resources. In addition, it is important to understand that ...