That does not mean regulators should stamp it out
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At least on prediction markets
The tools bookmakers use to block data-savvy gamblers, and how to get round them
Charlotte Howard, our New York bureau chief, on the cultural and political risks of turning everything into a bet
AI is prompting investors to reassess every business model under the sun
Forget valuations. Look out for search-engine hits and fund managers getting fired
Demand for trading cards, sports memorabilia and other collectibles is huge
