Product service plays a crucial role for brands to retain customers and spur revenue growth. It is, however, often outsourced to a third-party supplier, driven by cost savings and the ability to focus on core businesses. While there is a large body of literature studying service outsourcing, the...

Motivated by direct interactions with practitioners and real-world data, we study a monopoly firm selling multiple substitute products to customers characterized by their different social network degrees. Under the multinomial logit model framework, we assume that the utility a customer with a...