Research " The Dissertation Committee for Fang Yin Certifies that this is the approved version of the following dissertation: Business Value of Information Technology in the Internet Economy "

This dissertation consists of three essays that address the issue of the business value of Information Technology (IT) in the context of the Internet economy. The first essay studies the productivity of IT in the context of pure Internet based companies or dot coms. Various dot coms are divided into two groups: “digital” dot coms whose product and service can be distributed in digital form, and “physical” dot coms whose product needs to be physically shipped to customers.