The Sonoran Institute has released a new report on Tucson's role in the Arizona Sun Corridor Megaregion. Tucson's New Prosperity:Capitalizing on the Sun Corridor makes the case that the economic health of Tucson is closely tied to the much larger Sun Corridor economy that is focused in Phoenix, 100 miles to the north. But the report makes clear that Tucson's best strategy is not to compete with Phoenix, but to treat Phoenix as an asset that can be utilized to advance its own economy. In terms of growth and sprawl, Phoenix has won the race. Tucson should compete by establishing its own niche in the economic environment of the Sun Corridor. As a city that is embraced on all sides by national, state, and county parks forests, conservation areas, and monuments, and undeveloped state trust lands, Tucson's great advantages are its spectacular natural environment, opportunities for outdoor recreation and a relaxed desert lifestyle.