Jaap Gordijn (jaap@thevalueengineers.nl) is founder and director of The Value Engineers (https://www.thevalueengineers.nl), a company designing peer-to-peer business models for technologies such as blockchain. Also, he is an associate professor of innovative e-business at the VUA, Amsterdam. He is the key developer of, and has internationally published on, the e3-value methodology, which comprises a graphical technique to design and evaluate networked business models (http://research.e3value.com). Earlier, he was a member of Cisco’s International Internet Business Solution Group. As such, he was active as an e-business strategy consultant in the banking, insurance, and digital content industries for Fortune 500 companies. You can reach him at j.gordijn@vu.nl.