Federal Reserve Chairwoman Janet Yellen will go before economic leaders this week, repeating a call for caution as the global economy continues to recover from the Great Recession.

Yellen will deliver keynote remarks Friday in Jackson Hole, Wyo., wrapping up the largest gathering of the year for world central bank leaders.

In this latest installment of WEX BackStory, Economics Writer Joseph Lawler explains how it could impact the future of monetary policy in the United States and around the world.