France's debt stress and a fierce bond sell-off have made the race to succeed
ECB President Lagarde, who is set to depart, a test of crisis-management
ability. Policymakers and member-state governments are increasingly treating
market tensions as a decisive factor in the appointment. Netherlands' Klaas Knot
and Spain's Pablo Hernández de Cos are emerging as leading contenders to take
charge amid renewed bond-market volatility.