B4Development Foundation (B4D) is the Arab world's first behavioral insights and nudge unit. Founded in 2016 by the Supreme Committee for Delivery and Legacy – the entity tasked with the 2022 FIFA World Cup Qatar™ infrastructure, legacy and preparatory works –as the Qatar Behavioral Insights Unit (QBIU), it was officially incorporated as a foundation under the Qatar Financial Centre in 2019, with a broader mandate to promote and replicate its nudge work and model around the world. Leveraging insights from behavioral sciences, B4D promotes evidence-based policies to address challenges with behavioral roots. Through rigorous experimentation, the foundation works with partner policymakers, organizations and individuals to make the world a better place, one nudge at a time; a legacy of long-term impact built on designed interventions that guide people's everyday decision-making toward greater social impact, inclusive growth and good governance. Today, the foundation spearheads, builds and designs programs and initiatives for capacity building, knowledge and research dissemination, as well as nudge and behavioral science unit setups in academic, governmental and non-governmental organizations around the world.