Les auteurs introduisent le dossier sur les concepts et méthodes en analyse de filières, appliqués à l’agriculture aux agro-industries et à l’espace rural, en présentant le cadre et la démarche méthodologique de l’analyse de filières ainsi les différentes contributions qui le...

[fre] Les centres urbains secondaires sont des points d'interconnexion entre la collecte, le commerce de gros et la vente au détail des produits vivriers. La consommation de leurs habitants diversifie les débouchés et permet ainsi d'assouplir la gestion des flux commerciaux et de diminuer les...

A few decades ago rubber was one of the first tree crops to be characterized by a spectacular breakthrough, the production of new, highly productive clonal material. With regard to rubber, the adoption of clonal planting materials led to a spectacular improvement in labour-productivity and...

This paper helps understand the increasing popularity of a new type of contract in the smallholder plantation economy in Ivory Coast : the ?Plant and Share? arrangement. This contract, based on a partnership between autochthons and migrants, provides evidence for the capacity for institutional...

[eng] The author makes an analysis of the social stratification of different ethnic groups induced by the plantation economy. During the «mining period», land and labour seem equally important. The «allochthonous» consider labour supply as crucial for settlement and land extension...

The most traditional and widely used farming systems in the humid upland tropics are based on fallowing and various forms of slash-and-burn agriculture. Their sustainability depends on the duration of the fallow; as long as the fallow stage is longer than seven or eight years, slash-and-burn...

A hypothesis that the financial log-periodicity, cascading self-similarly through various time scales, carries signatures of a law is pursued. It is shown that the most significant historical financial events can be classified amazingly well using a single and unique value of the preferred...

A novel application of the correlation matrix formalism to study dynamics of the financial evolution is presented. This formalism allows to quantify the memory effects as well as some potential repeatable intraday structures in the financial time series. The present study is based on the...