This paper studies optimal sport league size. League expansion lowers average player quality, reducing fans utility in inframarginal locations, while fan utility in new locations rises. Welfare analyses of such expansions must compare these two effects. Using a model where fan demand depends on...

In this article, we simulate the concentration process within the German dairy sector employing a sectorwide optimization model. As a result, we get cost minimizing structures of the dairy sector for various time horizons depending on varying levels of transportation costs. We show that the...