In effect then the local outcomes of what appear to be large-scale national shifts associated with the images of sunbelt and frostbelt
may be tempered not only be the inertia of significant economic activity in cold region cities, but also reinforced by expansion in jobs and population within some parts(or on the fringe of) their metropolitan areas.
Yet, because Rustbelt states are part of the Frostbelt
, changing demand for warmer climates may underlie the result.
Bad times are the mother of necessity, driving Frostbelt
regions to consider bold new steps, notes Mark Muro of the Brookings institution's Center on Urban and Metropolitan Policy.
Because of this migration of the creative class, a new social and economic geography is emerging in America, one that does not correspond to old categories like East Coast versus West Coast or Sunbelt versus Frostbelt
Regional competition, especially between the Frostbelt
and Sunbelt areas of the nation, took on new forms.
Pierce & Jerry Hagstrom, Unions, Frostbelt
Seek More Control Over Pension Fund Investments, NAT'L.
At first glance, this migration might be thought of as an extension of the long-term redistribution of population from the Frostbelt
(Northeast and Midwest regions) to the Sunbelt (South and West regions).
Three shifts, which have determined the distribution of jobs and people, have occurred since the end of World War II: 1) the shift from the frostbelt
to the sunbelt; 2) the movement from central cities to suburbs; and 3) "the relatively faster growth of jobs and people in small and less dense metropolitan statistical areas (MSAs).
Automation: The ITI Status Report on Great Lakes Manufacturing, Industrial Technology Institute, Ann Arbor, MI.
Many researchers explore the thesis that sunbelt and frostbelt
states exhibit different growth paths, primarily because of differences in energy and labor costs; these include Plaut and Pluta  and Wasylenko and McGuire .
All through the 1980s, the city's per-capita income grew slower than most other Frostbelt
4) New York City, unlike nearly all other large central cities in the Frostbelt
, had significant employment gains during the 1960s.