Stimulus Effect of the Minimum Wage
From the Chicago Federal Reserve:


  Following a minimum wage hike, household income rises on average by about \$250 per quarter and spending by roughly \$700 per quarter for households with minimum wage workers. Most of the spending response is caused by a small number of households who purchase vehicles


http://www.chicagofed.org/digital_assets/publications/working_papers/2007/wp2007_23.pdf

Aaronson, D., S. Agarwal, and E. French  (2011): "The Spending and Debt Responses to Minimum Wage Increases" Federal Reserve Bank of Chicago Working Paper, WP 2007-23.