Claudia Steinwender, 11 April 2018

Flows of information, though critical for the efficient functioning of markets, are often limited in reality, potentially distorting trade flows and price patterns. This column uses the transatlantic telegraph connection of 1866 to explore how changes in information frictions affected cotton markets in the US and UK. The results show that information frictions decrease average trade flows and the volatility of trade, leading to substantial welfare losses.

Brandon Restrepo, Matthias Rieger, 16 July 2014

Artificial trans fat is omnipresent in the global food chain, but the medical consensus is that it increases the risk of developing cardiovascular diseases such as heart disease and stroke. Between 2007 and 2011, New York City and six other county health departments implemented bans on trans fat in restaurants. This column presents the first evaluation of the effect of these bans on cardiovascular disease mortality rates.

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