Portrero Hill Merchants Association

And if the taxpayers have to fork over a few cents more to buy local hammers, the money will come back, and more, from the demonstrated benefits of shopping locally.

Chiu thinks that's a good idea, and he's already taken the first steps to forcing the city to shop local. Chiu introduced legislation in April requiring the city to set aside a portion of all contracts for locally-wned businesses and to increase the financial advantage local firms get in bidding.

And at Chiu's request, the HRC will appear before the supervisors Land Use Committee May 11 to present the latest data on how much city spending goes to local businesses. "I've been asking for this for two years," Chiu said.

"It is unwise for our city not to take $1 of public money and give it to a local business that will pass that dollar onto its local employee, who will then spend it at another local business," he added. "The multiplier effect of this is that money spent locally is better for the economy, and for the taxpayers."