Clinical prediction rules (CPRs) that predict the absolute risk of a clinical condition or future
outcome for individual patients are abundant in the medical literature; however, systematic …

Land use is regulated through various mixes of command-and-control interventions that
directly affect land use via land use restrictions, and other public interventions that indirectly …

Pourquoi les projets de développement, les interventions des ONG ou les politiques
publiques nationales sont-ils tous soumis à d'importants écarts entre ce qui était prévu et ce …

We adopt a theory-based approach to synthesize research on the effectiveness of payments
for environmental services in achieving environmental objectives and socio-economic co …

Chapter 1 discussed the ways that reviews examine previous research and other forms of
evidence to answer review questions and how their methods depend upon the questions …

Over the last twenty or so years, it has become standard to require policy makers to base
their recommendations on evidence. That is now uncontroversial to the point of triviality--of …

An important part of conservation practice is the empirical evaluation of program and policy
impacts. Understanding why conservation programs succeed or fail is essential for …

Bien que les théories du changement soient souvent débattues dans la littérature portant sur
l'évaluation et qu'il y ait un consensus sur ce qu'est, conceptuellement, la théorie du …

Green Revolution policies are again being pursued to drive agricultural growth and reduce
poverty in Sub-Saharan Africa. However conditions have changed since the well …

Certification systems (CS) set and monitor voluntary standards to make agricultural
production sustainable in socio-economic terms and agricultural trade fairer for producers …