Master of Behavioral and Decision Sciences

MBDS students in class on Penn campus

Learn the theory, apply the tools, and improve decisions in the real world

Every organization depends on people making decisions, both individually and in groups. Behavioral science helps us understand those decisions—and how to change them for the better.

Penn's Master of Behavioral and Decision Sciences (MBDS) prepares students to apply insights from behavioral economics, decision sciences, network analysis, public policy, and the social sciences to real-world challenges.

Whether in business, government, nonprofit, healthcare, education, technology, or social impact, MBDS students learn to examine and influence how individuals and groups think, choose, collaborate, and act. Even when an individual makes a decision by themselves, they're still influenced by the expectations and thoughts of those around them, complicating the nature of every decision.

The program equips students with both theoretical foundations and practical tools to address complex problems wherever human behavior shapes outcomes. Rooted in Penn”s School of Arts and Sciences, MBDS helps students build the skills to make a positive, sustainable impact across industries, institutions, and communities.

Penn's MBDS program is a STEM-designated program, coded as 30.1701.

Please note: GRE test scores are required for applicants who have less than three years of professional experience post-bachelor's.

Program team

Cristina Bicchieri

Cristina Bicchieri
Founding Director, Master of Behavioral and Decision Sciences; S. J. Patterson Harvie Professor of Social Thought and Comparative Ethics; Professor of Philosophy, Psychology and Legal Studies (Wharton)

Marco Carrara

Marco Carrara
Director, Employer Partnerships

Jenny Weyant

Jenny Weyant
Associate Director

 

Megan Wilkins Administrative Coordinator, Master of Behavioral and Decision Sciences

Megan Wilkins
Program Coordinator

Impact decisions and behaviors in a variety of fields

Hear from Master of Behavioral and Decision Sciences Founding Director Cristina Bicchieri about how this unique theoretical and applied master’s degree provides the understanding and tools students need to enact behavioral change in individuals and in organizations.

If you are having trouble viewing this video, you can watch it on YouTube.

Behavioral science in practice

Behavioral science in practice

Behavioral science matters because every organization depends on people making decisions and the dynamics of the groups they function in. MBDS students learn how to bring that perspective into professional settings, helping organizations understand behavior, optimize decision-making, and design more effective systems, policies, products, and interventions.

Through applied projects, the Design Challenge, skills-focused workshops, industry lectures, alumni conversations, and engagement with partner organizations, students connect classroom learning to the realities and complications of professional practice. These opportunities expand students' perspectives, strengthen their professional networks, and prepare them to apply behavioral science across a wide range of roles and sectors.

MBDS is a training ground for the next generation of applied behavioral scientists—professionals prepared to help organizations make better decisions because they understand the people and group dynamics behind them.

Fast facts

Representing students in the 2023-2024 cohorts

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60%
Percentage of international students, representing 25 countries
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15+
Number of undergraduate majors represented
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66%
Percentage of women enrolled in this STEM graduate program

AI in behavioral science

Artificial intelligence and behavioral science have a long-shared history. Nonetheless, the rapid growth of generative AI is rapidly opening up new opportunities for behavioral and decision sciences.

Penn MBDS is at the forefront of AI-based research, using artificial agents to model and simulate real-life decisions, showing how cognitive science concepts can improve the way AI is built, and driving forward new ways of running studies of humans using AI.

That innovation extends to the classroom. Professors are using AI tools to optimize course structures and in-class activities, enabling students to experience and use the latest tools themselves.

Financing your education

It’s never too early to plan for financing your education. It is recommended that you start researching your eligibility and loan options as soon as possible.

Learn more about financial aid options >

Upcoming application deadlines

The priority admission deadline for fall 2027 is December 1, 2026.

The regular application deadline for fall 2027 is February 1, 2027.

MBDS information session

Meet our program team and hear more about the MBDS curriculum, application process, faculty, and more.

Center for Social Norms and Behavioral Dynamics

Led by MBDS Founding Director Cristina Bicchieri, this research center aims to support positive behaviors on a global scale.

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