The very restrictive nature of systems of supply and demand functions which have constant elasticities is well known. The same is not true of single constant own-price elasticity demand functions.
Vol. 24, No. 3, General Equilibrium, Incomplete Markets and Sunspots: A Symposium in Honor of David Cass (Oct., 2004), pp. 493-501 (9 pages) It is shown that the property that the equilibrium manifold ...