One hundred and forty two days before the 2012 US presidential election our final State-by-State Political-Economy Model gave an advantage to Barack Obama with 51.6% of the popular vote (error margin ± 4.47) and 324 electoral votes (Jerôme and Jerôme-Speziari 2012). On November 6, 2012, with 51.6% of the vote and 332 electoral votes, the Democratic incumbent wins a second term. Regarding certainty of an Obama plurality, the model gave a probability of victory by 64%. In 2012, it seems that this was enough to ensure a good predictability.
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