The University of Michigan community is mourning the loss of John Leahy, a gifted student, respected scholar, and deeply cherished friend whose passing has left an immeasurable void in the hearts of those who knew him. John was an extraordinary economist, admired not only for his intellectual brilliance but also for the generosity, humor, and humanity he brought to every conversation.

John possessed a sharp and disciplined mind, paired with the rare ability to think deeply and communicate clearly. His discussions and presentations were often the highlight of conferences and academic gatherings. He had a remarkable talent for distilling complex research into a few precise, memorable lines—insights that stayed with colleagues long after the discussion ended. His clarity of thought and analytical depth set him apart, earning him widespread respect among peers and mentors alike.
Those who shared their work with John knew the feeling well: a mix of nervous anticipation and genuine gratitude. His critiques were incisive and honest, always pushing ideas to be better, sharper, and more meaningful. While his feedback could be intimidating, it was also deeply treasured, because it came from a place of rigor, curiosity, and sincere engagement. To have John discuss your work was both a challenge and an honor.
Beyond his academic excellence, John was known for his wit and warmth. His humor brought levity to serious discussions, and his presence made intellectual collaboration both enriching and joyful. He was a loyal friend, a thoughtful colleague, and someone whose absence will be felt profoundly.
John Leahy will be remembered for his exceptional mind, his generosity of spirit, and the lasting impact he made on those fortunate enough to learn from him, work with him, and call him a friend. He will be missed more than words can express.