This paper examines the equilibrium correspondence in Arrow-Debreu exchange economies with semi-algebraic preferences. We show that a generic semi-algebraic exchange economy gives rise to a square system of polynomial equations with finitely many solutions. The competitive equilibria form a...

As blockchain technology is adopted into modern economies, the underlying institutional protocols will evolve. In this paper, we set out the reasoning behind how this will likely take us to an economy beyond both money and money prices. Money facilitates human-human exchange in the presence of...