Bloomberg Opinion columnist Barry Ritholtz speaks with Ben Inker, the head of asset allocation at GMO, which manages about $60 billion in assets. In his nearly three decades at GMO, Inker has served as an analyst for the quantitative equity and asset allocation teams, as a portfolio manager of several equity and asset allocation portfolios, as a co-head of international quantitative equities, and as CIO of quantitative developed equities. He is also a member of the GMO board of directors and a CFA charterholder.