This paper introduces a new duality concept, factor income function, in order to establish the factor Price Equalization theorem and the Heckscher-Ohlin theorem in an oligopolistic Heckscher-Ohlin model with increasing returns to scale.

This paper introduces sector-specific externalities in the Heckscher-Ohlin two-country dynamic general equilibrium model to show that indeterminacy of the equilibrium path in the would market can occur. Under certain conditions in terms of factor intensities, there are multiple equilibrium paths...