Leontief found that the United States' exports were produced with a lower ratio of capital to this commodity than its imports. As the Beveridge curve moves toward the origin, the market for this commodity becomes more efficient. Its supply curve may 
Leontief found that the United States' exports were produced with a lower ratio of capital to this commodity than its imports. As the Beveridge curve moves toward the origin, the market for this commodity becomes more efficient. Its supply curve may bend backwards at high prices. Unlike the subjective theory of value, Ricardo's theory of value suggested that the value of a good is proportional to the amount of this commodity required to produce it. This commodity is one of the primary factors of production, along with land and capital. For 10 points, name this commodity, whose price is also called the wage.