Growth with a Fixed Factor

Consider an economy in which a fi…xed supply of unskilled labor can be combined with knowledge capital to produce consumption. The technology for accumulating knowledge capital is linear in knowledge capital. This leads to long-term growth if the production function for consumption goods is approximately Cobb-Douglas for large values of the stock of knowledge capital. The quality-ladder economy of Boldrin and Levine [2010] generates a menu of Leontief technologies with this feature. If the initial capital stock is low, there can be a long period of stagnation before unskilled wages start to grow, as in Lewis [1954]. A small open economy with a sufficiently low initial capital stock will run a trade surplus during its initial stages of development.