We find that observed cross-country price differences primarily reflect regional market segmentation occurring within countries. Using a model of price-setting subject to costly search, we show that identification of national versus regional segmentation requires augmenting price data with...

We identify the main shock driving fluctuations in long‐horizon productivity expectations, consistent with theories of TFP news. The identified shock induces strong comovement patterns in output, consumption, investment, employment, and stock prices even though TFP does not change...

We formalize the editorial role of news media in a multi-sector economy and show that media can be an independent source of business cycle fluctuations, even when the information they report is accurate. Our approach tightly links agents' beliefs to real economic developments and allows for...