In the application of economic theory to actual analysis, we are often bewildered how to use theory because the framework normally supposes the existence of all cases, which is not actually realised. Here, I introduce an easy way to significantly reduce cases to examine while maintaining the...

This article was written in recognition of the completion of the publication of the OEuvres économiques complètes of Léon Walras and his father, Auguste. Those writings are important because Auguste contributed concepts to his son?s ideas about economics and because the presentation of the...