How far can we go in weakening the assumptions of the general equilibrium model? Existence of equilibrium, structural stability and finiteness of equilibria of regular economies, genericity of regular economies and an index formula for the equilibria of regular economies have been known not to...

A dynamic pure-exchange general equilibrium model with uncertainty is studied. Fundamentals are supposed to depend continuously on states of nature. It is shown that: 1. if financial markets are complete, then asset prices vary continuously with states of nature, and; 2. if financial markets are...

An economy with two dates is considered, one state at the first date and a finite number of states at the last date. Shareholders determine production plans by voting — one share, one vote — and at ?-majority stable stock market equilibria, alternative production plans are supported by at...

A pure exchange, general equilibrium model is considered and the equilibrium set is studied. It is shown for all total endowments and an open and dense set of preferences that if there arel2 commodities andm2 consumers then there exists a set of distributions of endowments with nonempty interior...

We study internalization of production externalities in perfectly competitive markets where production plans are decided by majority voting. Since shareholders want firms to maximize dividends of portfolios rather than profits, they are interested in some internalization. Two governances, namely...

An economy with two dates is considered, on state at the first date and a finite number of states at the last date. Shareholders determine production plans b voting -one share, one vote- and at r-majority stable equilibria, alternative production plans are supported by at most rx100 percent of...

In absence of markets for externalities, the authors look for governances and conditions under which majority voting among shareholders is likely to give rise to efficient internalization. The central and natural role played by a governance of stakeholders is underlined and benchmarked.

We study internalization of production externalities in perfectly competitive markets where production plans are decided by majority voting. Since shareholders want firms to maximize dividends of portfolios rather than profits, they are interested in some internalization. Two governances, namely...

This paper analyzes the welfare implications of regulating some but not all monopolistic industries of an economy (i.e., marginal regulation). It is shown that marginal regulation decreases welfare if a large fraction of all industries are monopolistic. Furthermore, the paper shows that the...

The paper introduces some simplifying tools and methods for studying Rational Beliefs and for proving existence of Rational Belief Equilibria: We identify a set of stable non-stationary stochastic processes, named SIDS processes. Furthermore we introduce the concept of a Rational Belief...