In a 21st century of global trade, international businesses, and intercontinental manufacturing, what really is local anymore? 
Is there such a thing as an American automobile? 
What about Seattle's premier homegrown, hometown product, Boeing airplanes (where many, many, sub-and major-assemblies are manufactured overseas and corporate headquarters is now in Chicago)?
Does a company's headquarters make it local? Perhaps “locally-sourced,” “locally manufactured,” or “made from 100-percent local ingredients” is enough to earn the local label? 
Maybe . . . the better way would be to define a formula that indicates what percentage of a product's profit, or monetary “influence” stays in the local economy?