研究發展與資本累積的內生成長模型之研究

Abstract

This paper incorporates the complementarity property between intermediate goods and specific-training human capital into Schumpeterian R&D-based growth model. The use of innovated intermediate capital goods required the specific-trained human capital to operate it. Moreover, the innovative firm has the incentive to train workers of the intermediate goods purchasing firms from which a lump sum of training fee may charged. Like tie-in sale, innovative firm sells intermediate goods and trains workers for the purchasing firms. The steady state growth rate is determined by both the ratio and level of the intermediate goods and specific-training human capital. Hence even countries converge to same steady-state ratio of intermediate goods and specific-training human, the differential long-run growth rate across countries may exist provided that countries have differential long-run growth rate across countries may exist provided that countries have different levels of intermediate goods or specific-training human capital. Like Solow growth model, during the transitional path conditional convergence will prevail. As for external shocks, the model can generates profound growth effects depends on the property of shocks. The temporary adverse (favorable) shocks on both intermediate goods and specific-training human capital will produce permanent adverse (favorable) effect. However, temporary shock on only one type of capitals will generate asymmetric effect. The temporary adverse shocks on either types of capitals will have no long-run growth effect, while the temporary favorable shocks on either types of capitals will generates positive long-run growth effect. Therefore, the policy implications of the model are that government should encourage the accumulation of intermediate capital goods or specific-training human capital or both. The effects will be permanent!