Fragmentation of production into more and more complex supply chains is a prominent feature of globalisation. It implies that transaction costs as part of total costs of ownership carry a large weight in procurement decisions. An analysis of the various types of transaction costs is also...

The optimal duration of a supply contract balances the costs of re-selecting a supplier against the costs of being matched to an inefficient supplier when the contract lasts too long. I develop a structural model of contract duration that captures this tradeoff and provide an empirical strategy...

In this paper we study the dynamics of smallholder participation in export value chains focusing on the example of small-scale broccoli producers in the highlands of Ecuador. We analyze the extent of participation over an 11-year time period using correlated random effects and diff-GMM models...

In this paper the general concept of Supply Chain Management (SCM) is described and the scientific cooperation models in the supply chain are discussed. Though there are several models to explain cooperations there is no clear perspective on the needed competencies in companies to shape a...