Our Team

Meet our Team

We are product designers and behavioral scientists. We are deeply passionate about designing our systems and our environment to change behavior.

Interested in applying behavioral science?

On the Blog

Read our latest musings. We are biased but we think our POVs are quite interesting.

Our TEDx Talk

Our co-founder and CEO Kristen Berman gave a TEDx Talk about Behavioral Design.

Join our bootcamp

Check our 8-week online course. Find out why your customers make decisions and how to change behavior (for good).

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Kristen Berman
Kristen Berman studies how people actually act in the marketplace, as opposed to how they should or would perform if they were completely rational.

Kristen co-founded Irrational Labs, a behavioral product design company, with Dan Ariely in 2013. Irrational Labs helps companies and nonprofits understand and leverage behavioral economics to increase the health, wealth and happiness of their users. She also co-founded Common Cents Lab, a Duke University initiative dedicated to improving the financial well-being for low to middle Americans. Under Kristen’s leadership, Common Cents launched over 50 experiments with companies, touching tens of thousands of people. Kristen’s work has been featured in The Stanford Innovation Review, TechCrunch, and Scientific American.

She was on the founding team for the behavioral economics group at Google, a group that touches over 26 teams across Google, and she hosted one of the top behavioral change conferences globally, StartupOnomics. She co-authored a series of workbooks called Hacking Human Nature for Good: A practical guide to changing behavior, with Dan Ariely. These workbooks are being used at companies like Google, Intuit, Netflix, Fidelity, Lending Club for business strategy and design work.

Before designing, testing and scaling products that use behavioral economics, Kristen was a Senior Product Manager at Intuit and startup, Lytro. She built product management and marketing systems for small businesses and consumers, for domestic and international markets. The core thread throughout this all is a deep passion for understanding why people behave the way they do and then building solutions that make their lives better. And in her personal life, Kristen lives behavioral science. She’s started a communal living environment called Radish, to design life for happieness.

Evelyn Gosnell
Managing Director
Evelyn is a Managing Director at Irrational Labs and frequent speaker in behavioral economics and consumer psychology.

She is an expert in helping companies use the science of decision-making to better understand how real people think and behave, thereby creating better products and services for them.  Evelyn was previously the Head of Product Development and Behavioral Science at Shapa, a health startup founded by behavioral scientist Dan Ariely.

Evelyn’s work spans a broad array of industries: she has worked with Google, Procter & Gamble, Intuit, The World Bank, Microsoft, AARP, and Indeed, among others.  Evelyn also led the development of Irrational Labs’ Behavioral Economics Bootcamp, and is passionate about training others to use behavioral science methodologies.

Evelyn transitioned to the world of behavioral economics from a background in Product Management and Marketing. She started her career at Christian Dior Parfums in Paris and subsequently worked in various product management, marketing, and sales positions.

Evelyn holds a B.A. in cultural anthropology from Duke University and graduated summa cum laude. She also completed a Master’s degree in Marketing from the Institut d’Etudes Politiques in France. She speaks fluent French and Russian.

Richard Mathera
Managing Director
Richard is a Managing Director at Irrational Labs.

He has extensive experience applying behavioral economics in a variety of fields, including finance, health, nutrition, security, education, and international development.  Prior to joining Irrational Labs, Richard was a Senior Behavioral Scientist at the Common Cents Lab, a Duke University initiative which leverages behavioral economics to improve the financial well-being of low and moderate income Americans, where he designed and launched numerous behaviorally-informed products, features, initiatives, and experiments.

Formerly Richard has applied behavioral economics at ideas42 and developed randomized controlled trials at Innovations for Poverty Action in Morocco. He served as Senior Advisor at USAID’s Office of Development Credit, where he promoted access to finance throughout Latin America and the Caribbean. Richard also worked at Cornerstone Research, an economic and financial consulting firm specializing in complex commercial litigation. He has consulted for PepsiCo in Chile and USAID’s Office of Education and worked on the trading floor of UBS Investment Bank and at the US Embassy in Mexico.

Richard holds a Master’s degree from Columbia University’s School of International and Public Affairs, where he studied Advanced Policy and Economic Analysis and a Bachelor’s degree from the University of Virginia, where he studied economics, Spanish, and French, graduating Phi Beta Kappa.

Lindsay Juarez
Lindsay Juarez is a Director at Irrational Labs.

Lindsay is an expert in applying behavioral science insights to encourage meaningful behavior change. She is particularly interested in interventions that make taking the daily behaviors that lead to long-term goal success—such as exercising or saving for retirement—not just easier but also more enjoyable and fun. At Irrational Labs, Lindsay focuses on designing and testing interventions in the financial and health domains. Before she joined Irrational Labs, she was a Senior Behavioral Researcher at the Center for Advanced Hindsight at Duke University, a behavioral science center committed to research make people happier, healthier, and wealthier.

Prior to her work at Irrational Labs and the CAH, Lindsay worked for the federal Government Accountability Office and at New York University on a series of multi-site school interventions to reduce the racial academic achievement gap. Her research has been funded by grants from the National Science Foundation and the Templeton Foundation and published in top policy and psychology journals. She’s consulted for energy and sustainability non-profits and worked with clients as varied as meditation start-ups and cookbooks to international banks to incorporate behavioral science insights.

Lindsay received her BA in psychology from Reed College and her MA and PhD in social psychology from the University of Virginia. In the service of the quest for enjoyable exercise, she’s completed her 200-hour yoga teacher certification and two barre instructor certifications.

Rob Pierson
Marketing Manager
Rob is a Marketing Manager at Irrational Labs.

Rob is an experienced digital growth marketer, focusing on technical implementation, analytics and strategy. He began his career working in Congressional Leadership in Washington, DC, helping Members of Congress and their staff to leverage digital marketing tools. He has led marketing teams for several early and mid stage startups, in addition to working in an agency setting.

Abby Karp
Program Manager
Abby is a Behavioral Scientist with a background in behavioral economics, environmental science, and customer engagement.

Previously, Abby managed conservation engagement programs and customer marketing at Lucid, where she helped universities, companies, and cities make their buildings and occupants more energy efficient. Abby has conducted research on decision-making at Environmental Defense Fund and helped launch Root Solutions, an environmental behavior consulting group. She holds a Bachelor of Arts in Environmental Studies and Conservation Psychology from Middlebury College.

When she’s not helping nudge impactful behavior change, Abby can be found playing ultimate frisbee, backpacking, snowboarding, baking, or reading.

Lisa Zaval
Behavioral Scientist
Lisa is a behavioral scientist and research consultant with broad expertise in behavioral economics, consumer behavior, and social psychology.

She holds a Ph.D. in Judgment Decision Making Psychology from Columbia University and completed her post-doctoral training at the Center for Decision Sciences at Columbia Business School. Lisa’s work has been published in an array of prestigious academic journals, including Psychological Science, PNAS and Nature: Climate Change, and has also appeared in numerous media outlets such as The Wall Street Journal, Forbes and Scientific American.

In addition to her academic research experience, she leverages 5+ years of applied behavioral science consulting experience, working across a range of industries (health care, financial services, energy efficiency, market research) to apply her professional knowledge of behavioral science to solve practical business and policy challenges. She has worked with Facebook, CUNA Mutual, Ipsos, PG&E and the United Nations, among many others.

Lisa also holds an adjunct research scientist appointment at Columbia University, where she has taught Judgement and Decision Making courses and research methods.

Deena Rosen
Behavioral Scientist
Deena is a behavioral scientist and research consultant with Irrational Labs.

She is an expert at merging best practices in user experience design and behavioral science. She has 20 years of experience designing human-centered products with a deep focus on climate change interventions. As the head of design at Opower, she created products that nudged people to use less energy, with a big impact: Opower has saved 25 billion kWh of energy across 50 million homes. Deena writes and speaks about behavioral design at places such as Stanford, MIT, TEDx, SXSW, Medium, GOOD magazine, and VentureBeat.

Isabel Macdonald
Behavioral Scientist
Isabel Macdonald is a Behavioral Scientist with Irrational Labs.

She holds a PhD in Public Policy from Harvard University, with a specialty in behavioral economics. She is passionate about how a deeper understanding of economic and psychological forces can guide the development of technology tools for social good. She has worked with financial institutions, NGOs, and government agencies to implement large scale experiments, as well as to develop tech products that help users achieve their financial and professional goals. 

Previously, Isabel was a consultant in the Talent practice for Mercer Consulting. In this role, she advised Fortune 500 companies on developing talent pipelines, HR analytics, and compensation strategies that maximize employee motivation and productivity.

Isabel also holds a postdoctoral research position at the Haas School of Business at UC Berkeley. Her current research explores how mobile apps help teachers implement remedial education and how blockchain and crypto-backed wallets advance financial inclusion globally.

Abi Warren
Behavioral Scientist
Abi Warren is a Behavioral Scientist at Irrational Labs.

She is passionate about applying behavioral science to healthcare to improve patient outcomes, experiences, and equity. She has worked with governmental, non-profit, and commercial organizations across several industries (e.g. healthcare, finance, nutrition) including the World Bank, Planned Parenthood, the governments of Madagascar and Mexico, Kellogg, and Microsoft to understand systemic problems and design innovative solutions. In addition to Irrational Labs, Abi has worked with behavioral science organizations including ideas42 and BVA Nudge Unit. 

Abi received a BA in Economics from Cornell University with a minor in Spanish. Abi is also a Bilingual Birth Doula through which she provides informational, emotional, and physical support for pregnant people and their families before, during, and after labor. 

Sara Dadkhah
Behavioral Researcher
Sara is a Behavioral Researcher with Irrational Labs. She brings over 10 years of corporate and nonprofit experience focused on developing innovative and actionable client solutions.

Previously, Sara worked at the International Rescue Committee as the Senior Program Officer overseeing resettlement operations in 26 cities. At the environmental consulting firm of D-Max Engineering, Sara assisted 18 municipalities with water quality improvement projects and served as the company’s financial officer.

Sara conducted research at the UC San Diego Center for Brain and Cognition, as well as the California Neuropsychopharmacology Research Institute. Sara holds a Bachelor of Science in Psychology from UC San Diego and is fluent in Persian.

Joanna See
Joanna is the admin of Irrational Labs and executive assistant of Kristen Berman.

She brings years of experience handling office tasks efficiently. Proven cost-cutting abilities while maintaining high standards and achieving company goals.

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