"Big push" vs absorptive capacity : How to reconcile the two approaches

Two opposing views seem to dominate the present aid debate :  "the big push" thesis and the absorptive capacity concern. The "big push" is supported in particular by Sachs (2005) and is based on the poverty trap concept, while the absorptive capacity concern collects in a manifold concept several opposing views to the first approach.
Citer

Guillaumont P., Guillaumont Jeanneney S. (2010) ""Big push" vs absorptive capacity : How to reconcile the two approaches", chap.13  in Mavrotas G. (ed), Foreign Aid for Development - Issues, Challenges, and the New Agenda, Oxford University Press