This paper puts the neoclassical and neo-Schumpetarian growth models in a unified framework. In doing so, it is argued that these two views of growth, one based on factor accumulation and the other based on innovation, are complementary in that they may capture different phases of a single...

This paper analyzes the situation, in which a continuum of identical players is engaged in more than one activity and each activity is characterized by a complementarity game. The player's intensity levels across different activities are linked in such a way that the marginal cost of increasing...

This paper develops a Ricardian model with a continuum of goods when consumers have nonhomothetic preferences. Goods are indexed in terms of priority, and the households add higher-indexed goods to their consumption baskets, as they become richer. South (North) has comparative advantage in a...

Does the market economy exacerbate inequality across households? In a capitalistick society, does the rich maintain a high level of wealth at the expense of the poor? Or would an accumulation of the wealth by the rich eventually trickle down to the poor and pull the latter out of poverty? This...

We present a two-region economy model, in which inefficienct concentration may occur. Individuals in this economy, even though they prefer evenly distributed across the two regions, concentrate into one region in their pursuit of better life. We characterize the conditions for such...

The standard practice in economic theory is to assume that all the relevant variables (e.g., the space of all the goods of potential economic value) and all the relevant constraints are known to the policymaker or to the designer of an economic system. This often unstated assumption (or the...

A multiplicity of equilibria, steady states, cycles, etc., are prominent features of models with complementarities. Multiplicity suggests the instability of an economic system and the sensitive dependence of the equilibrium behavior on the environment. In this lecture, I discuss some...