Stagflation, new products, and speculation

Abstract

The paper looks at the macroeconomic implications of some recent developments in the theory of industrial organization. In a Kaleckian model, firms are assumed to invest heavily early in the product life cycle, thus creating effective demand. Conversely, it is assumed that late in the product life cycle firms hoard, waiting for new products in which to invest. Under reasonable conditions, the rates of growth, unemployment, and inflation can be related to the fraction of new products in the economy.