This paper gives an overview of different methodologies related to value chain analysis in thecontext of environment and trade research. Four major fields of methodologies are identified:Accounting of input-output flows, general equilibrium models, econometrics, and globalcommodity chain...

Durch die Modellierung der Sicherheit betrieblicherInformationssysteme kann die Komplexität des Sicherheitsproblems in einerOrganisation und ihren Geschäftsprozessen reduziert werden. Das Erkennen vonSicherheitsanforderungen sowie optimaler Handlungsalternativen in Formgeeigneter...

Price comparison services are being used by more and more internet users worldwide tocompare prices of (online-)suppliers. The characteristics of price comparison services differinternationally. Not only are they different in the reference to their scope of work. Also with regard tothe technical...

This study provides a unied growth theory to correctly predictthe initially negative and subsequently positive relationship between child mortalityand net reproduction observed in industrialized countries over the courseof their demographic transitions. The model captures the intricate...