With characteristic cogency, Sean Stannard-Stockton's guest post raises a crucial question about strategic philanthropy's requirement of an evidence-based theory of change. Sean says that this is an error because the social world is too dynamic and complex for philanthropists and the nonprofit organizations they support to base social interventions on evidence.
Let me begin with a point of vehement agreement--the value of building great organizations--and then turn to our major point of disagreement. I believe that a great nonprofit organization...
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