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    After missteps, Dunkin’ Donuts set for California expansion

    Chastened by early mistakes, company takes a 2d shot in the state Starbucks rules

    Starbucks and Dunkin' Donuts dominate the region where each was founded -- Green on the West Coast and orange in the Northeast. And both are expanding across the country, from opposite directions.

    Dunkin' Donuts locations (US)
    Starbucks locations (North America)