摘要:This paper presents a general equilibrium model of optimal investment with adjustment and search costs and labor turnover. It assumes, along the lines of the Ricardian theory of jobless growth,a negative relationship between investment and job creation. However, it derives a positive relationship between capital stock and employment in levels, contradicting the second implication of Ricardo'stheory. As a consequence, in the short run capital stock and labor employment are substitutes, but in the long run they are complements.