New Economies: moving from the margins to the mainstream was a day of economic thinking and practice in Rotterdam, hosted by Partners for a New Economy (P4NE). It brought together 180 thinkers, change-makers, funders and organisations working to create economies fit for all people and the planet. P4NE is an international philanthropic fund focused on redesigning our economy so that nature and all people flourish. It was founded in 2015 by the MAVA, Oak, Marisla and KR Foundations to address the root causes of environmental degradation within our economic system.