This paper studies qualitative change taking place during economic development. In the model presented qualitative change is created by the mergence of new sectors, each of which produces an output that is different from other sectors. A system with a variable number of sectors is simulated. The...

This chapter presents an application of competitive general equilibrium theory of markets in the spirit of Walras, formalized in the 1950s by K. Arrow and by G. Debreu. In using general equilibrium theory to generate insight into current policy issues, it follows a tradition established by Arrow...

In this paper we critically examine the main workhorse model in asset pricing theory, the Lucas (1978) tree model (LT-Model), extended to include heterogeneous agents and multiple goods, and contrast it to the benchmark model in financial equilibrium theory, the real assets model (RA-Model)....

For many years it was fashionable to treat macroeconomics and microeconomics as separate subjects without looking too deeply at the relationship between the two. But in the 1970s there occurred an episode of high inflation and high unemployment, which was inconsistent with orthodox theory. As a...

This paper deals with the problem of price formation in a market with asymmetric information and several risky assets. We then extend the multivariate security model of Caballé and Krishnan (1994) to a continuous time framework, and general utility function. Our model enables us to observe some...

We define an algebro-topological concept of essential map and we use it to prove several results in the theory of general equilibrium and nash equilibrium refinement.

Public Regulation studies the formation of institutions and government policies that regulate industry, offering new data, new contexts, and new tools for analyzing the structure and performance of regulatory activity. It addresses both how these institutions and policies came into being and how...