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By Sasha Dichter, Acumen's chief innovation officer and a co-founder of Lean Data and Tom Adams, Acumen’s chief impact officer and co-founder of Lean Data

  • Acumen's “Lean Data” impact measurement methodology lets the firm hear “directly from customers, even those in the most remote locations, in ways that creates value for them, for the companies that serve them, and for investors,” write Acumen’s Sasha Dichter and Tom Adams in the Measure Better series opener.

By Alnoor Ebrahim, professor of management at the Fletcher School at Tufts University

  • “The single most important feature of Lean Data is its focus on listening to customers in order to serve them better,” writes Alnoor Ebrahim, a professor Tufts’ Fletcher School. Acumen’s Lean Data methodology is no silver bullet, he says, and “is better seen as a complement to evaluation approaches such as randomized control trials rather than a substitute.”

By Dennis Price, editorial director at ImpactAlpha

  • Jessica Kiessel cut her impact chops conducting randomized control trials on global development programs for Innovations for Poverty Action, the research organization known for its rigorous evaluations. Now she’s tasked with evaluating the impact of products and services of early-stage firms and other companies in the Omidyar Network portfolio that are tackling challenges in education, financial services and citizen engagement.

By Dennis Price, editorial director at ImpactAlpha

  • Clara Barby leads an initiative that has achieved something few in the impact measurement space thought possible: consensus. Barby, a partner at Bridges Fund Management, is CEO of the Impact Management Project, which has worked with some 2,000 practitioners to build shared norms for impact measurement and management. One area of agreement: stakeholder feedback belongs at the center of impact management.