Inventions like gunpowder and the wheelbarrow were created by the Chinese hundreds of years ago. The fact that such items were not put to productive use was caused primarily by a lack of ____.

The five most important variables that determine the level of ________ are disposable income, wealth, expected future income, price level, and interest rate

A) consumption B) government purchases C) net exports D) planned investment

A fall in the level of prices

A) does not affect the value of money. B) has an uncertain effect on the value of money. C) increases the value of money. D) reduces the value of money.