FACTOR PRICE: The price paid for and received by the services of factor of productions (labor, capital, land, and entrepreneurship) when exchange through factor markets. Like prices in other markets, factor price adjusts to balance the forces of demand and supply. For factor demand and the factor demand curve, the factor price is negatively related to the quantity of factor services demanded. For factor supply and the factor supply curve, factor price is positively related to the quantity of factor services supplied. The key factor prices are wage rates, interest rates, rents, and profits. The rigidity or inflexibility of factor prices is an important aspect of the macroeconomic study of the short-run aggregate market. See also | wage | interest | rent | profit | labor | capital | land | entrepreneurship | factor price | factor demand | factor supply | factor markets | factors of production | circular flow | business sector | household sector | national income |