France’s borrowing costs have surged to their highest level in more than two decades amid a global sell-off in bond markets, as high debt and deficit levels, along with concerns that rising oil prices could prolong inflation, add pressure to French government bonds. The yield on France’s 10-year government bonds reached 4.96% last Thursday, the highest level since 2002. The spread between French and German 10-year bonds also widened to around 133 basis points, its highest level since the eurozone debt crisis in 2012. [...]