The Great Mosaic: Reviving Ontario’s Regional Economies offers a framework for thinking about the present and future of Ontario’s regional economies. With this report, the Ontario Chamber of Commerce (OCC) examines the unique strengths, opportunities, and challenges of different communities across the province, and the need for deliberate strategies to support their long-term development. Our report offers 17 practical recommendations to help build an environment in which Ontarians can continue to adapt and thrive as the economy evolves.