How to get into the American hosts debate

This post was written by Emily A. Schoenhals, a research associate at the National Bureau of Economic Research, and Jennifer D. Wittenberg, an assistant professor of economics at the University of Pennsylvania.

The opinions expressed in this commentary are the authors’ own.

The views expressed by columnists are their own and do not necessarily reflect the views of Barb Wire.

To comment on this story, visit

Follow us:Follow @barbswire,BarbsWire,Twitter