• Wall Street Journal, Thursday, November 10, 2016 8:15 AM

Madison Avenue expressed shock at Donald Trump’s presidential election win. Now, they're turning their attention to the uncertainty of what a Trump administration may do and a potential slowdown in ad spending growth next year. “Uncertainty is bad for ad spending growth,” Jonathan Barnard, head of forecasting for Zenith, an ad buying and research arm of Publicis Groupe told the Wall Street Journal. But he said the degree to which ad spending is pulled back depends “largely on how the economy performs and what specific moves the new administration makes." If, for example, Trump "follows through on some campaign promises such as his pledge to overhaul trade treaties and deport illegal immigrants then 'we could see a slowdown in economic growth, which will hurt ad spending,'" Barnard told the Journal. "Any policy affecting the auto industry could have major ramifications since the sector is the largest driver of ad spending in the U.S. Mr. Trump has threatened to slap 35% tariffs on cars imported from Mexico," the report said.

Read the whole story at Wall Street Journal »