Agricultural innovation systems are complex, multi-layered, and can be difficult to define and analyse. In this paper, we provide examples of ‘systems analysis’: describing the context, what was done, and how the outcomes informed broader research and development activities. The five cases describe analyses of: i) agricultural systems in North-West Vietnam; ii) household food security in Central Vietnam; iii) agricultural innovation systems in Central Africa; iv) wheat commodity systems in Sub-Saharan Africa, and v) the national agricultural research system in Papua New Guinea.
Les systèmes d’innovation (SI) ont inspiré de nombreuses publications, notamment dans les pays industrialisés et, plus récemment, dans le monde en développement. Toutefois, à quelques exceptions près, la littérature dédiée aux SI n’explique pas de manière appropriée comment utiliser l’approche systémique pour améliorer l’innovation ou comment initier et faciliter les SI. Par ailleurs, si l’innovation elle-même semble avoir été suffisamment étudiée, son intégration dans un système qui, à son tour, opère dans certains contextes institutionnels et politiques, n’a pas été approfondie.
In the existing literature, the effects of contract farming on household welfare were examined with mixed results. Most studies looked at single contract types. This paper contributes to the literature by comparing two types of contracts – simple marketing contracts and resource- providing contracts – in the Ghanaian oil palm sector. We investigate the effects of both contracts on farm income, as well as spillovers on other household income sources. We use survey data collected with an innovative sampling design and a control function approach to address possible issues of endogeneity.
Smallholder farmers in developing countries often suffer from high risk and limited market access. Contract farming may improve the situation under certain conditions. Several studies analyzed effects of contracts on smallholder productivity and income with mixed results. Most existing studies focused on one particular contract scheme. Contract characteristics rarely differ within one scheme, so little is known about how different contract characteristics may influence the benefits for smallholders.