Christoph Stork

africa ott broadband mobile tax dr congo internet uganda taxes revenues facebook mobile broadband cameroon cto big data ai spectrum regulation fttx mpesa mobile money otts ip transit content application platforms digital service tax digital economy covid-19 evidence nigeria internet value chain over the top social media ict4d benin economic impact south east asia separation of access and service platforms south asia oecd baskets indeces webfoundation a4ai eiu gsma itu next billion zero rating freemium freemium internet business model connect next billion free internet