The economic performance of Sub-Saharan Africa (SSA) over the past two decades has been disappointing. The initial explanation for this poor performance focussed on deficient macroeconomic policies. However a number of SSA countries have undertaken and sustained a reasonable measure of macroeconomic reform and still see no significant expansion in the growth of manufactured exports. This sugges...

The problem of slaughterhouse waste water can be resolved by mixing it with serum from lacteal industry to produce a biogas. The effect of serum addition on the anaerobic co-digestion of solid and liquid slaughterhouse waste has been studied. The experimental device consisted of a continuous digester by recirculation of biogas produced in the anaerobic digestion. The input effluent was a mixtur...

The proliferation of linked data on the Web paves the way to a new generation of applications that exploit heterogeneous data from different sources. However, because this Web of data is large and continuously evolving, it is non-trivial to identify the relevant link data sources and to express some given information needs as structured queries against these sources. In this work, we allow user...

We study the case where parallel trade (PT) stems from government price controls in a foreign country. We remove the presumption that PT blunts dynamic efficiency if the government has partial commitment ability. We model the R&D firm’s option to serve the foreign country, and find that PT may improve quality, depending on preferences for quality. Improving quality may be a sufficient condition...

Manually assigned keywords provide a valuable means for accessing large document collections. They can serve as a shallow document summary and enable more efficient retrieval and aggregation of information. In this paper we investigate keywords in the context of the Dutch Folktale Database, a large collection of stories including fairy tales, jokes and urban legends. We carry out a quantitative...