As the income inequality discussion continues to simmer across the country, municipal minimum wage ordinances have become hot topics of conversation in many cities. In January 2016, Seattle will implement its second step-up in the local minimum wage in 9 months, reaching $13 for many employers in the city and edging closer to a $15 an hour minimum that will apply to most firms by 2019. San Francisco will reach a $15 an hour minimum by July 2018. Yet cities as diverse as Birmingham, Chicago, Los Angeles, and Louisville have enacted or proposed similar minimum wage laws. It is too early to discern true impact of these local wage ordinances, but speculation abounds regarding whether or how the higher wage will affect firms and the earnings of low-wage workers.