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The newest prediction markets guru is a middle schooler in braces - MSN
When Eli Goldfine messaged me on X, I thought it was a joke. He said he wanted to help me with my prediction markets beat. "Prediction markets, AI, the universe. 13yo," his bio read. I didn't ...
Prediction Markets History: Discover How They Evolved
What if you could buy a share in the future, literally betting on whether an event will happen and getting paid if you're right? That's the core idea behind prediction markets, and they've grown from a tiny academic experiment in Iowa to a global phenomenon generating over €18 billion in monthly trading volume. Whether you're curious about how these markets work, how they compare to traditional betting, or why major banks are suddenly paying attention, this guide walks you through the entire history of prediction markets and where they're headed next.What Are Prediction Markets and How Do They Work?At their simplest, prediction markets are platforms where you buy and sell contracts based on whether a specific real-world event will happen. Think of it like a stock market, but instead of trading shares in a company, you're trading shares in an outcome, like "Will inflation exceed 3% next quarter?" or "Who will win the next presidential election?"Contracts are typically priced between €0.00 and €1.00, with the price reflecting the market's estimated probability of the event occurring. If you buy a "Yes" contract at €0.65, the market is essentially saying there's a 65% chance that event will happen. If you're right, you receive €1.00 per share. If you're wrong, you lose your stake. Unlike traditional bookmakers, prediction markets don't act as "the house", individuals trade directly with one another, much like a stock exchange.The theory behind this is called the efficient market hypothesis, the idea that when people put real money on the line ("skin in the game"), the collective wisdom of all participants produces remarkably accurate forecasts. A comprehensive study published in the International Journal of Forecasting found that political prediction markets were 75% more accurate than nearly 1,000 public opinion polls in predicting the outcomes of five U. S. Presidential Elections from 1988 to 2004. That said, they're not infallible - prediction markets famously missed the mark on both Brexit and the 2016 U. S. Election.Academic Origins: The Iowa Electronic Markets (1988–1992)The story begins at the University of Iowa in the late 1980s. Faculty members created the Iowa Electronic Markets (IEM) as an academic research project, a small-scale futures market where participants could buy and sell contracts pegged to real events like presidential elections and corporate earnings reports. It was never meant to be a money-making venture. The operators were universit...
Robinhood excludes some prediction markets over manipulation fears
US broker Robinhood has excluded some prediction markets from its push into the fast-growing sector over concerns they encourage manipulation and insider trading.
Prediction Market Details - Marginal REVOLUTION
The Guardian has an interesting article on prediction markets. There are the usual worries about betting on death, as if insurance markets don't already exist and about insider trading, which public markets have long dealt with. But there is also interesting material on who decides what happened when resolving bets about events made in language […]
