This work was completed during my tenure as a scientific assistant and d- toral student at the Institute for Operations Research at the University of St. Gallen. During that time, I was involved in several industry projects in the field of power management, on the occasion of which I was...

1 Demand and Equilibria -- 1.1 Introduction -- 1.2 Individual demand -- 1.3 Market demand -- 1.4 Equilibria -- 1.5 Concluding remarks -- 2 Smoothing Demand by Aggregation -- 2.1 Many different consumers -- 2.2 Convexifying by averaging -- 2.3 Concluding remarks on diversification -- 3 Spaces of...