Brexit and Trump have brought the problems of capitalism into sharp relief, but both are only making things worse. Take the investment challenge - businesses invest where there they see technological or market opportunity.

It's important that public funds be spent in research directions that are pushing market frontiers rather than working in existing areas. This means funding research not only on drugs but also on areas like life-style changes, even if the profit potential is lower for Big Pharma as you cannot sell that change as you can sell a medicine.

An interesting attribute of public banks is that they don't only de-risk the downside, but also get a share of the upside.

Real median household incomes in the U.S. were basically the same in 1989 as in 2014. But we are also seeing similar challenges in the U.K. in the stagnation of real wages.

What is needed is both a New Deal in terms of mission-oriented investments but also a new deal in terms of a modern social compact - one that allows the state to socialize not only risks but also rewards. Maybe then innovation-led growth will also become growth that includes all of us.

If we want growth today to be more innovation-driven, more inclusive and more sustainable, then we need a more active state, not a less active one. Yet we still hear the dogma that we should just fix market failure by focusing on science and infrastructure, and to "level the playing field."

Brexit has shrunk the market opportunities. Exiting trade deals will do the same for the U.S. Those deals must be actively shaped and governed to make growth more inclusive.