His death was announced by the University of Maryland, where Dr. Daly was a professor in the School of Public Policy from 1994 to 2010 before taking emeritus status. The cause was a brain hemorrhage, said his daughter Karen Daly Junker.
Dr. Daly was widely regarded as a founder of ecological economics, a field that stood on the margins of economic study when he entered academia five decades ago but in recent years has attracted increasing notice around the world.
He argued for a fundamental shift in the way the economy is understood — not as an independent system, but rather one that exists within the ecosystem of the Earth and is constrained by the resources available on the planet.