Die Planung umweltfreundlicher Produkte und Produktionsprozesse stellt eine Herausforderung für die industrielle Produktion dar. Eine wichtige ökonomische Fragestellung besteht dabei in der Bestimmung der optimalen Emissionsminderungsstrategie, um die geforderten Emissionsminderungen mit...

This paper presents an optimization-based solution approach for the dynamic multi-level capacitated lot sizing problem (MLCLSP) with positive lead times. The key idea is to solve a series of mixed-integer programs in an iterative fix-and-optimize algorithm. Each of these programs is optimized...

This paper presents a new algorithm for the dynamic Multi-Level Capacitated Lot Sizing Problem with Setup Carry-Overs (MLCLSP-L). The MLCLSP-L is a big-bucket model that allows the production of any number of products within a period, but it incorporates partial sequencing of the production...

When similar patterns of expansion and contraction are observed across sectors, we call this a business cycle. Yet explaining the similarity and synchronization of these cycles across industries remains a puzzle. Whereas output growth across industries is highly correlated, identifiable shocks,...

This paper tests the existence of strategic information complementarities as a source of sectoral comovement. A theoretical model derived in Veldkamp and Wolfers (2007) explains sectoral comovement by the assumption that firms rely too much on aggregate information to make output decisions. We...

Nach dem Boom der Enterprise Resource Planning (ERP)-Softwarepaketein den 90‘er Jahren, die ihren Fokus auf der innerbetrieblichen Integrationund Optimierung von Geschäftsprozessen hatten, propagieren viele Softwareherstellerund Unternehmensberatungen nun Software zum SupplyChain Management,...

This paper proposes and tests an approximation of the solution of a class of piecewise deterministic control problems, typically used in the modeling of manufacturing flow processes. This approximation uses a stochastic programming approach on a suitably discretized and sampled system.(...)

Collaborative planning deals with aligning the production plans of legally separated companies. This thesis provides an approach for aligning detailed schedules in a scenario where several suppliers are delivering intermediate goods to one manufacturer. For producing the goods in a...