The Digital Economy is transforming all parts of society and the economy. Government action needs to be comprehensive if the B20 / G20 economies are to use digital to drive competitiveness, growth and social improvements. As corporations seek greater revenues from working with entrepreneurs, large and small businesses are failing to use digital collaboration to innovate together. As a result, they are putting at risk a $1.5 trillion growth opportunity, equivalent to 2.2 percent of global GDP. Greater digital collaboration between G20 large companies and entrepreneurs could result in an additional $1.5 trillion in global economic output, according to Accenture’s Digital Collaboration Index and economic model, equivalent to a 2.2 percent uplift to global GDP. This Accenture presentation was made to the B20 Digital Economy Forum Istanbul, Turkey on October 6, 2015.