Wage Rates and Purchasing Power
An individual who earns more money per week is obviously in a position to spend more in buying consumers’ goods than is an individual who earns less money per week. For example, a man who makes $1,000 per week has the ability to spend $1,000 per week, while a man who makes only $900 per week has the ability to spend only $900 per week. (For the sake of simplicity, we’re ignoring such possibilities as going into debt or using up savings, and assuming that the individuals both want to live within their incomes.)