Why Buy Local? 

Greater Economic Vitality
The money you spend in locally-owned stores re-circulates in the community for 2 to 3 times the economic impact of dollars spent at national retailers. (Studies show that locally-owned businesses generate a premium in enhanced economic impact—For every $100 spent at a locally owned business, $45 goes back into the community and our tax base. For every $100 spent at a chain store, only $14 comes back).
 
More and Better Jobs
For every 2 jobs a national retailer brings to a community, 3 higher-wage jobs are lost due to local businesses closing.  Small local businesses are the largest employer nationally and in our community, provide the most jobs to residents.
        
Fight Climate Change
When you shop locally you are less likely to need to use your car to run your errands and will not need to drive as far when you do drive.  This can help you reduce your personal impact on global warming.
 
Reduce Sprawl and Habitat Loss
Big Box stores and other national retailers usually require large undeveloped to accommodate their needs. Buying local means shopping closer to home, which means less sprawl and the resulting habitat loss.
 
Less Dependency on Oil
Locally-produced goods save on trucks and transportation.  When you shop locally you are less likely to need to use your car to run your errands and will not need to drive as far when you do drive.  Less driving mean less need for oil.
    
Support community groups
Non-profit organizations receive an average 250% more support from smaller locally-owned business owners than they do from large businesses.
  
Better Customer Service
Community-based businesses compete on being responsive to their customers’ needs.  As a result, local businesses often hire people with a better understanding of the products they are selling and take more time to get to know customers.
 
Put your taxes to good use
Local businesses in town centers require comparatively little infrastructure investment and make more efficient use of public services as compared to nationally owned stores entering the community.
 
Community Empowerment
Local economic decision-making builds social capacity and empowers the community.
 
A More Caring Community
Meeting our needs within the community encourages us to care for our neighbors and the environment we share.
 
Local business owners invest in community
Local businesses are owned by people who live locally and are more invested in the community’s future.
    
Competition and diversity lead to more choices
 A multitude of small businesses, each selecting products based on the needs of their local customers and not on a national sales plan, guarantees a much broader range of product choices.

Excerpt from: http://web.mac.com/greencitymonkey/iWeb/buylocalgreenwood/Welcome .html