Mac is the senior program manager of 21CC. His research focuses on access to capital for small businesses and minority entrepreneurs. He serves on the board of WYPR, NPR’s local affiliate station and on the board of The Friends of the Jones Falls. He received his MA in Scottish History from the University of Edinburgh and his MLitt in Scottish Historical Studies from the University of St Andrews with a focus on the socio-economic causes of migration in 19th century Scotland and the Americas.