Steven A. Tananbaum Senior Fellow for International Economics Robert Kahn argues that markets have absorbed the initial economic shock from Brexit, but navigating the new landscape will remain a challenge. Two months after the vote, the politics of Brexit is producing a lengthy and uncertain renegotiation of Britain’s place in Europe and the world. Such extended uncertainty is likely to produce a long-lasting drag on both UK and European economies, which could ultimately threaten the viability of the European Union (EU).