This course covers online and physical service systems with a focus on designing and managing them. When designing service systems, we need to determine the sales channels to use when offering services, design incentive mechanisms and make tactical capacity decisions. When operating service systems, we need to make rea-time pricing decisions, allocate capacity between different needs, make product recommendations, and forecast demand and customer behavior. Depending on the application setting, the capacity we manage can be physical, such as seats on an airplane to be allocated to passengers with different willingness to pay amounts, or digital, such as visitors on a webpage to be allocated between advertisers. We will cover ideas from revenue management, experimentation for demand learning, auctions, mechanism design and network theory.