The annual award is given to the best public policy book written by a Canadian.
Trebilcock was awarded the prize for "Dealing With Losers: The Political Economy of Policy Transitions," published by Oxford University Press.
The prize jury said the book addresses an issue ubiquitous across the policy landscape: when and how to mitigate the costs associated with policy changes.
Trebilcock is a professor of law and economics at the University of Toronto and was nominated for the 2005 Donner Prize for "Rethinking the Welfare State: The Prospects for Government by Voucher," with co-author Ronald J. Daniels.
Three other books were in the running for the Donner Prize and received $7,500.
They are: "Reinventer le Quebec: Douze chantiers à entreprendre" by Marcel Boyer and Nathalie Elgrably-Lévy (Éditions Stanké); "Brave New Canada: Meeting the Challenge of a Changing World" by Derek H. Burney and Fen Osler Hampson (McGill-Queen's University Press) and "Enlightenment 2.0: Restoring Sanity to Our Politics, Our Economy, and Our Lives" by Joseph Heath (Harper Collins)
The winner of the Donner Prize, announced Wednesday evening in Toronto, was chosen from 80 submissions.