John Mayne's introduction of contribution analysis (CA) has attracted widespread attention within the global evaluation community. Yet, despite this vivid attention, as Mayne himself notes (2011), there haven't been a lot of published studies that involve the systematic application of contribution analysis. This begs a number of questions: How can we bridge the divide between the sustained interest in and actual application of CA? How can we make CA work? What are the actual benefits of CA? In this panel the aim is twofold. First, contributors to this debate will convene and discuss the similarities and differences of their practical implementation of contribution analysis - how to make contribution analysis work. Second, they will discuss the benefits of using contribution analysis. #2011Conference #HowTo #contributionanalysis #mechanism #ProgramTheoryandTheoryDrivenEvaluation #theorybasedevaluation #alternativeexplanation #Instruments