Federal Reserve Chair Janet Yellen on Friday called on politicians across the globe to get their fiscal houses in order during good times to prop up economies during times of turmoil. In remarks to a symposium in Paris, Yellen blamed part of the slow global economic recovery on weak government support. The crisis led major central banks to deploy unconventional tools to spur recovery. While the unconventional tools helped support domestic recovery and global economic growth, more action from fiscal authorities would have strengthened the recovery, Yellen said.