Richard T. Pascale, Jerry Sternin, Monique Sternin, Harvard Business Press, 2010
1. Full citation and link #
Citation (APA style)
Pascale, R. T., Sternin, J., & Sternin, M. (2010). The power of positive deviance: How unlikely innovators solve the world’s toughest problems. Boston, MA: Harvard Business Press. Harvard Business Review Store+1
Online access
Harvard Business Review Press page:
https://store.hbr.org/product/the-power-of-positive-deviance-how-unlikely-innovators-solve-the-world-s-toughest-problems/1066 Harvard Business Review Store
Book listing (publisher imprint overview):
https://hbsp.harvard.edu/product/1066-HBK-ENG Harvard Business School
General book listing:
https://www.amazon.com/Power-Positive-Deviance-Unlikely-Innovators/dp/1422110664 Amazon+1
2. Overview #
This book presents positive deviance as a practical method for solving complex social and organizational problems by looking for people who already succeed under the same constraints as everyone else, then spreading their uncommon but locally workable behaviors. Drawing on cases such as childhood malnutrition in Vietnam, hospital acquired infections, and organizational performance challenges, the authors show how communities can discover their own hidden innovators, design experiments to copy what these outliers do differently, and embed those practices in the wider system. Instead of importing best practices or expert solutions, the positive deviance approach treats the community as the primary source of knowledge and emphasizes acting into new ways of thinking, which makes change more sustainable and less vulnerable to the organizational immune response.
3. Core ideas #
Solutions already exist inside the system
Positive deviance starts from the assumption that within any community or organization, some individuals are already achieving better outcomes despite facing the same constraints and resource limits as their peers. The task is not to invent something new from the outside, but to identify these positive deviants, understand their behaviors in detail, and help others practice those same behaviors in their own context. This reframes change as discovery and amplification of existing strengths rather than wholesale replacement of local practice.
Behavior change through practice, not persuasion
The method emphasizes that people change more reliably by trying new behaviors than by hearing explanations or training alone. Interventions are designed so that participants physically enact the new practice in real conditions, which gradually shifts beliefs and norms. This “act your way into a new way of thinking” principle is crucial in communities that are skeptical of experts or fatigued by previous failed programs.
Local ownership over expert-driven best practice
Rather than dropping in best practices from outside, facilitators convene local people to generate the inquiry, surface their own positive deviants, and design activities to spread those behaviors. Because the solutions are demonstrably already working in the same culture and conditions, they face less resistance and are more likely to stick. External experts shift from being problem-solvers to being process guides who help the community see and test its own hidden options.
Working with the corporate or community immune system
The book repeatedly notes that organizations defend themselves against foreign ideas, much like a biological immune system. Positive deviance sidesteps this by staying strictly within local norms, resources, and language. The behaviors that spread are, by definition, already legitimate for at least some community members, which makes it much harder for the system to reject them as unrealistic or imported.
Scaling through social proof and peer modeling
Change spreads not through top down mandates but through visible proof that “people like me” can succeed in a new way. When participants see neighbors or colleagues solving the same problem with the same tools, the new behavior becomes socially plausible. Group activities, peer teaching, and public demonstration are central mechanisms for diffusion.
4. Key examples and findings #
- Child malnutrition in Vietnam
Working in poor rural villages with very high rates of child malnutrition, practitioners asked communities to identify families whose children were well nourished despite similar poverty. These parents were quietly feeding their children small, frequent meals that included “inappropriate” foods such as shrimp, crabs, and sweet potato greens, and they washed hands before feeding. When these practices were turned into group cooking and feeding sessions, malnutrition reportedly dropped sharply and stayed low in follow up, demonstrating that locally generated practices could outperform imported nutrition advice. Wikipedia - Reducing hospital infections
Hospitals applying positive deviance to hospital acquired infections, such as MRSA, convened frontline staff to look for units or individuals with unusually low infection rates. They then identified and spread specific behaviors like consistent hand hygiene in tricky situations and informal cross checks among staff. Evaluations cited in related work showed sizable reductions in infection rates, suggesting that behavior centered approaches could succeed where policy reminders alone had stalled. Wikipedia - Organizational performance and change programs
In organizational settings, positive deviance has been used to improve safety practices, customer service, and other operational outcomes. Teams are invited to find internal “outliers” who already hit stretch goals or avoid common errors, then run small experiments to copy their routines and micro behaviors. The book highlights that performance gains often come packaged with higher engagement, because people feel respected as co-creators of the solution rather than passive targets of change. - Resilience of change over time
Across the cases, the authors underline that changes spread through positive deviance tend to be more resilient, because they fit within existing resource limits and social realities. Participants do not depend on ongoing funding, external experts, or special equipment. As a result, the new practices are more likely to survive leadership turnover, budget cuts, or shifting priorities.
5. Why this matters for the endoStrategy Collective #
This source is a foundational method text for the endoStrategy Collective, because it formalizes the core claim that many of the best answers to complex problems already live inside the system as outlier behaviors. Positive deviance offers a rigorous, field-tested way to locate those hidden internal innovators, learn from them without romanticizing them, and spread their practices in ways that cooperate with rather than trigger the corporate immune system. It also aligns tightly with our focus on inside out innovation, psychological safety, and spiky profiles, by treating unusual local successes as the starting point rather than the exception.
Key connections:
- It validates the idea of endoStrategists as “positive deviants” who already operate differently and get better outcomes without extra resources.
- It provides a practical group process for finding these people and translating their behaviors into repeatable practices.
- It supports our argument that sustainable change comes from redesigning local systems and routines, not importing best practices from consultants.
- It shows how community led experimentation can gradually soften resistance and build psychological safety around new behaviors.
6. How the Collective will use this source #
- Use as the core reference for the concept of “positive deviance” and its stepwise method in our theory and tools.
- Draw on the Vietnam and hospital infection cases as flagship examples of hidden internal innovators solving high stakes problems.
- Adapt the inquiry steps into field guides and workshop scripts for finding endoStrategists inside companies.
- Support arguments in the book and playbook that emphasize “look for local outliers” before commissioning external experts or frameworks.
- Inform research briefs on how positive deviance interacts with organizational culture, psychological safety, and the corporate immune system.
- Provide a conceptual bridge between social sector applications and corporate transformation, illustrating that the same principles apply in both.
7. EndoStrategist takeaways #
- In most systems, some people are already solving “impossible” problems with the same constraints as everyone else, and they are often invisible to leadership.
- These internal outliers are early proofs of concept for new ways of working, not anomalies to be normalized.
- The fastest way to improve a team or organization is often to find and copy the specific behaviors of your positive deviants, rather than importing generic best practices.
- Communities and teams change more reliably by doing new behaviors together than by being told what to do.
- Respectful, curiosity driven inquiry into what is already working reduces defensiveness and makes the corporate immune system less likely to attack change.
- EndoStrategists can use positive deviance as a structured way to shift from being lone heroes to facilitators of community owned innovation.
- For neurodivergent or spiky profile employees, positive deviance offers a strengths based frame that recognizes their unusual approaches as potential templates, not problems to be fixed.
