"Even in countries with a high minimum wage, the golden arches manage to turn a profit. Here's how." (http://www.theatlantic.com/business/archive/2013/08/the-magical-world-where-mcdonalds-pays-15-an-hour-its-australia/278313/)
Will McDonald's charge higher prices if the minimum wage goes up? Yes, but either way we are going to pay. It's either going to be through increased McDonalds prices or it is going to be through the government in the form of paying for increased social services to poor workers.