The model that we develop here considers that an upstream firm sells a vital input to downstream firms. There are vertical spillovers and two different regulatory policies of the input price: cost oriented regulation and no-regulation. We also admit two alternative market structures: vertical...

In spite of being mainly concerned with stabilization policies, central banks in many developed countries often advocate the necessity of structural reforms. In turn, demand-side policies - such as monetary policy - can often help improving the political support of reforms (two-handed-approach)....

In this paper, we consider the single machine scheduling problem with linear earliness and quadratic tardiness costs, and no machine idle time. We propose a genetic approach based on a random key alphabet. Several genetic algorithms based on this approach are presented. These versions differ on...