Cheah, E. T. and J. Fry (2015), “Speculative bubbles in Bitcoin markets? An empirical investigation into the fundamental value of Bitcoin”, Economics Letters 130, 32–36.
EL ZONTE, El Salvador (AP) — After El Salvador’s congress made the bitcoin legal tender this week, eyes turned to this rural fishing village on the Pacific coast. Known to surfers for its pounding waves, El Zonte has had the cryptocurrency in its economy for the past year.

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— In a 1,500-word memo obtained by The New York Times over the weekend, the company’s top lobbyist, Nick Clegg, sought to rebut Haugen’s allegations ahead of her unveiling in an episode of “60 Minutes” on Sunday night. “Social media has had a big impact on society in recent years, and Facebook is often a place where much of this debate plays out,” he said in the memo, in which he called Haugen’s impending accusations, which included blaming Facebook for January’s insurrection at the Capitol, “misleading.” He wrote that “what evidence there is simply does not support the idea that Facebook, or social media more generally, is the primary cause of polarization.”