Die starken Preissteigerungen für Benzin in den letzten 2 Jahren sind häufig auf mangelnden Wettbewerb zurückgeführt worden. Die These wird überprüft, indem die Wettbewerbsstruktur bei Tankstellen und deren Vorleistungsbeziehungen dargestellt werden und ökonometrische Schätzungen über...

Employing a unique dataset that covers almost 6000 informal enterprises from six West African urban centers, this paper examines the backward and forward linkages of these enterprises to the formal sector. We first provide a descriptive analysis of the existing formal-informal linkages. It turns...

The possibility to outsource over the internet should revolutionize foreign outsourcing, especially for services (UNCTAD, 2004). Our model describes materials and services input allocation from domestic vs. foreign suppliers. Allocations change when firms outsource online due to access and...

Smallholders often have to certify according to international standards and produce under contract for large agro-businesses to access the export market. While mostly positive effects for the farmers have been found for contracts and certifications, little is known about the role of individual...

Global food markets demand the adoption of food standards by small-scale farmers in developing countries when they enter international markets. While a conventional certification with GlobalGAP can be a market entry condition for conventional food, especially for horticultural products, organic...

We analyze in this paper determinants of voluntary knowledge transfer from foreign investors to their local suppliers in 19 Sub- Saharan African countries using data from the 2010 Africa Investor Survey by UNIDO. We argue that not all backward linkages entail the same potential for spillovers...

Whereas many empirical studies show that the internationalization of production is driven by falling distance costs, theoretical models of the endogenous emergence of multinational enterprises predict the opposite. This paper argues that this dichotomy can be resolved if the production process...

We argue that the measures of backward linkages used in recent papers on spillovers from multinational companies are potentially problematic, as they depend on a number of restrictive assumptions, namely that (i) multinationals use domestically produced inputs in the same proportion as imported...

We use unique plant-level data to study the link between the local availability of services and the decision of manufacturing firms to source materials from abroad. To guide our empirical analysis we develop a monopolitic-competition model of the materials sourcing decisions of heterogeneous...