Slack in incomplete markets with nominal assets: A symmetric proof

If the preferences satisfy the non-satiation property at each state of the nature, then our existence result of equilibria with slack leads to the existence of an ordinary financial equilibrium. It is worth to stress that unlike Cass [Cass, D., 1984. Competitive Equilibrium with Incomplete Financial Markets, CARESS W 84-09; Cass, D., 2006. Journal of Mathematical Economics 42, 384-405], our existence proof does not break the symmetry of the problem.