The purpose of this note is to discuss the envelope relationship between long run and short run cost functions. It compares the usually presented relationship with one of different form and implications, resulting from a simple production function and constant prices. It points out in particular...

The paper explains by means of two detailed examples that Nash Equilibria in zero-sum games can be obtained through the application of linear programming and maximin calculations. It also discusses, for the same purpose, the application of Kuhn-Tucker theory. In particular, with respect to the...