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Gathering Evidence for Better Weaving

With Dr. Carlos Muñoz Piña, 30 Oct 2025

3 min readSep 4, 2026

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Summary

This session centred on evidence as the “litmus test” for whether a weaving project is actually working. Dr. Muñoz Piña argued that weavers have a social responsibility to test their hypotheses against reality, ensuring that time and resources are truly delivering well-being.

Key Learnings

  • The Tyranny of KPIs: Key Performance Indicators often become the objective themselves, distracting from the actual goal. For example, in micro-credits, a “90% repayment rate” was seen as a success (KPI), but evidence later showed it didn’t actually lift people out of poverty (the real goal).
  • The “Counterfactual”: To know if your weaving made a difference, you must compare your group with a “with and without” group (a control group). Without this, you might take credit for changes that would have happened anyway (e.g., city-wide drops in energy use).
  • Mixed Methods: While quantitative data (numbers) tells you what happened, qualitative data (interviews/stories) tells you why. In a smart-billing study, numbers showed energy savings, but interviews revealed that simple “tips” were more effective than “neighbor comparisons.”
  • Internal vs. External Validity: What works in one context (e.g., Bangalore) might not work in another (e.g., Mexico City). Weaving requires constant “pointillism” — gathering data from many locations to see the full systemic picture.
  • Social Responsibility: Gathering evidence is an act of accountability. It ensures that the trust, funding, and time invested by a community are not being wasted on ineffective processes.

Key Actions

  • Identify the “Deep Purpose”: Before choosing metrics, ask all stakeholders (including the “silent voices” like farmers’ families) what they actually want to achieve, rather than just what can be easily counted.
  • Look for Natural Experiments: If you can’t run a formal trial, find a “mirror” or comparison group — another region or organization that isn’t using your methods — to see if your weaving is the true cause of change.
  • Embrace “Permanent Skepticism”: Always ask, “What else could explain this result?” and “What would have happened if we did nothing?”
  • Listen to Emergent Results: Don’t just look for what you planned to happen. Pay attention to unexpected side effects, both positive and negative (e.g., a project intended for education might actually boost the local furniture economy).
  • Communicate Failures for Redesign: Use evidence of “non-success” not as a reason to cancel projects, but as a map for how to redesign them (e.g., shifting micro-credits toward those with demonstrated entrepreneurial skills).

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References

Key Figures:

  • Dr. Carlos Muñoz Piña (Speaker): Universidad del Medio Ambiente and Director of Global Research at the World Resources Institute (WRI).
  • Esther Duflo: Nobel Prize winner in Economics (referenced for her work on Randomized Control Trials and micro-finance).
  • Abhijit Banerjee: Co-recipient of the Nobel Prize (referenced alongside Duflo).

Concepts & Methodologies:

  • Randomized Control Trials (RCTs): The scientific method of testing policy effectiveness.
  • Counterfactual: The “parallel world” scenario used for comparison.
  • Internal/External Validity:** Concepts from research design regarding the applicability of results.

Case Studies:

  • Micro-finance in Hyderabad: How repayment didn’t equal poverty reduction.
  • Smart Billing in Bangalore: How city-wide data revealed the true impact of energy-saving tips.
  • Watershed Restoration in Brazil: How coaching vs. training affected funding success rates.

Knowledge Base Categories:
1) Funding & Strategy
2) Weaving Methods

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