In this paper we develop a simple endogenous growth model with two competing production technologies and learning spillover effects between firms that use the same technology. Investments are directed to the technology with highest current and expected returns. Since current investments increase...

An overview is offered of different approaches to economic modelling of sustainable development. First, conceptual-theoretical perspectives on sustainable development are shortly reviewed from the angle of model implications. Next, different model types are discussed. These include neoclassical...