This paper develops and analyzes a macroeconomic model in which aggregate growth and fluctuations arise from the discovery and diffusion of new technologies; there are no exogenous aggregate shocks. The temporal behavior of aggregates is driven by individuals' efforts to innovate and/or make use...

A large body of evidence suggests that poor countries tend to invest less (have lower PPP - adjusted investment rates) and to face higher relative prices of investment goods. It has been suggested that this happens either because these countries have lower TFP in the investment - good producing...

A large body of evidence suggests that poor countries tend to invest less (have lower PPP adjusted investment rates) and to face higher relative prices of investment goods. It has been suggested that this happens either because these countries have lower TFP in the investment good producing...

A large body of evidence suggests that poor countries tend to invest less (have lower PPP-adjusted investment rates) and to face higher relative prices of in- vestment goods. It has been suggested that this happens either because these countries have lower TFP in the investment-good producing...