TY - BOOK AU - Boldrin,Michele AU - Levine,David K. TI - Factor saving innovation T2 - Serie Seminarios U1 - 338.064 21 PY - 2001/// CY - Buenos Aires PB - Instituto y Universidad Torcuato Di Tella KW - INNOVACION TECNOLOGICA KW - PRODUCTIVIDAD DEL CAPITAL KW - FACTORES DE PRODUCCION KW - INNOVACION INDUSTRIAL KW - MEDIOS DE PRODUCCION N1 - Bibliografía: p. 19 N2 - It has been argued that concave models exhibit less “endogeneity of growth” than models with increasing returns to scale. Here we study a simple model of factor saving technological improvement in a concave framework. Capital can be used either to reproduce itself, or, at some additional cost, to produce a higher quality of capital, which requires less labor input. If better quality capital can be produced quickly, we get a model of exogenous balanced growth as a special case of ours. If, however, better quality capital can be produced slowly, we get a model of “endogenous growth” in which the growth rate of the economy and the rate of adoption of new technologies is determined by preferences, technology and initial conditions. Moreover, in the latter case, the process of growth is necessarily uneven, exhibiting a natural cycle with alternating periods of high and slow growth. Growth paths and technological innovations also exhibit dependence upon initial conditions. The model provides a step toward a theory of endogenous innovation under conditions of perfect competition. ER -