In a recent interview with John Turner — who is a Fellow at CASFI — he warns that current exuberance around stocks, cryptocurrencies and artificial-intelligence ventures may signal a speculative bubble. According to John, speculative excesses emerge when cheap money (fuel), perceived market potential (oxygen) and speculative momentum (heat) combine. He draws parallels to past historical bubbles (like the railway and bicycle-market bubbles), arguing that many investors today may be riding unsustainable hype. John advises private investors to steer clear of such bubbles — especially given low interest rates and rising market risks.
John Turner interviewed by Die Zeit John Turner interviewed by Die Zeit
CASFI's fellow John Turner gave an interview to the newspaper Die Zeit on October 22, 2025.
In a recent feature with Die Zeit, CASFI Fellow John Turner discusses signs of emerging speculative bubbles, cryptocurrency and global equity markets, offering historical context and clear warnings for investors.
John Turner Interviewed by Die Zeit
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