IEM

Does the Vice-Presidential pick matter?

The inane speculation about Donald Trump’s Vice-Presidential nominee is in full swing, with the media having just finished covering all of the silly possibilities for RFK Jr.’s pick.  (It wasn’t Aaron Rodgers.) This article aims to measure how much the VP pick matters to political traders using share prices from Presidential markets in the Iowa […]

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Presidential Prediction Market Déjà vu        

Feelings of déjà vu from the spring of 2020 for political forecasters and gamblers stems not from another contentious election, hopeless gridlock in D.C., or even the same presumptive nominees, but from Donald Trump and Joe Biden, again, both trading below 50% on prediction markets like PredictIt.  Four years ago neither Trump nor Biden were

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Updated Fair model shows economic fundamentals boosting Biden

Immune from news stories like Special Counsel Hur’s report or President Joe Biden’s press conference, Professor Ray Fair’s 2024 economy-driven vote share model shows Biden gaining ground since the last quarterly economic data was released. A summary of Professor Fair’s two-party vote-share model can be found in a previous article and here is Fair’s description

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The last 25 years of the Iowa Electronic Markets

There have been many other real-money prediction markets and election betting exchanges operating since The Iowa Electronic Markets (IEM) first opened on June 1, 1988.  Some of these include Intrade, HedgeStreet (now known as Nadex), UBC Election Stock Market, The Penn State Prediction Markets, Politieke AandelenMarkt in Holland, and Wahl$treet in Germany.  Not to mention

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