His thesis dealt with the survivability of network infrastructures after disasters. By Sebastian James Neumayer. Abstract. This thesis addresses the question of how to efficiently allocate resources among competing players in convex environments. On Aug 29, 2007 Sebastian James Neumayer published: Efficiency loss in a class of two-sided market mechanisms. Dr. Sebastian Neumayer is a technical staff member in the Cyber Analytics and Decision Systems Group His PhD thesis dealt with the survivability of network. Dr. Sebastian Neumayer is a technical staff member in the Cyber Analytics and Decision Systems Group His PhD thesis dealt with the survivability of network.