Divided governments and futures prices

This paper investigates the effect of divided governments on asset prices. For identification, we use changes in the implied probability of a divided government while votes are being counted. Using high frequency data from the betting market and US overnight futures market, we estimate a 1.4% decrease in the S&P 500 futures in the election event of a divided government. Results are similar for the 2010 UK election. Further analysis shows that divided government affects expected stock returns through the mechanism of policy uncertainty.

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