Lubos Pastor, Pietro Veronesi, 25 May 2017

Since 2000, political uncertainty has had a strong influence on market volatility in the US. Since Donald Trump became president, however, high policy uncertainty has not translated into high market volatility. Building on a theoretical framework linking stock prices and political news, this column argues that the US market does not respond to political uncertainty because political news coming from the new administration has been unreliable and difficult for investors to interpret. 

Meredith Crowley, Huasheng Song, Ning Meng, 10 February 2017

The Trump administration’s announcement of its intention to impose a 20% tax on goods imported from Mexico and its calls for a 45% import tariff on goods from China have alarmed businesses and consumers alike. This column uses data on the foreign market entry decisions of Chinese firms to assess the impact that tariff scares and trade policy uncertainty have on trade flows. The evidence suggests that Trump's threats to raise tariffs can reduce US imports even if the administration doesn't follow through with the threatened tax increases.

Hongyong Zhang, 07 January 2016

Negotiations on the Trans-Pacific Partnership were far from smooth sailing, leaving the outlook of Japan’s trade policy uncertain for some time. This column examines the effect of the TPP agreement and the resulting resolution of trade policy uncertainty on the promotion of trade and innovation activities.

Dennis Reinhardt, Cameron McLoughlin, Ludovic Gauvin, 05 November 2014

In the aftermath of the Global Crisis, policymakers and academics alike discussed how uncertainty surrounding macroeconomic policymaking has impacted domestic investment. At the same time, concerns regarding the spillover impact of monetary policy in advanced economies on emerging market economies featured strongly in the international policy debate. This column draws the two debates together, and examines how policy uncertainty in advanced economies has spilled over to emerging markets via portfolio capital flows. It finds remarkable differences in the spillover effects of EU vs. US policy uncertainty.

Nicholas Bloom, Scott Baker, Steven Davis, 22 October 2011

Policymakers’ choices dominate headlines in the global crisis. This column distinguishes between economic uncertainty and economic policy uncertainty, constructs an index to measure policy-related uncertainty, and argues that improving policy uncertainty would create millions of US jobs.

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