BONUS: The Indicator: Inflation Or Shrinkflation?

This week's bonus episode of Up First comes from NPR's daily business podcast <em>The Indicator</em> from <em>Planet Money</em>. The Bureau of Labor Statistics updates the Consumer Price Index each month. The latest number shows a 5.4% increase over the last twelve months. That has some inflation watchers worried. So how do we measure inflation? And what about inflation's sneaky cousin, "shrinkflation"?