From the summary:
The minimum wage has gained momentum among policymakers as a way to alleviate rising wage and income inequality. Much of the debate over this policy centers on whether raising the minimum wage causes job loss, as well as the potential magnitude of those losses. Recent research shows conflicting evidence on both sides of the issue. In general, the evidence suggests that it is appropriate to weigh the cost of potential job losses from a higher minimum wage against the benefits of wage increases for other workers.
It is easy to be confused about what effects minimum wages have on jobs for low-skilled workers.
Researchers offer conflicting evidence on whether or not raising the minimum wage means fewer jobs for these workers. Some recent studies even suggest overall employment could be harmed. This Letter sheds light on the range of estimates and the different approaches in the research that might explain some of the conflicting results. It also presents some midrange estimates of the aggregate employment effects from recent minimum wage increases based on the research literature.