485.Soros.

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Wertheim and Co.
In 1959, after three years at F. M. Mayer, Soros moved to Wertheim & Co. He planned to stay for five years, enough time to save $500,000, after which he intended to return to England to study philosophy.[58] He worked as an analyst of European securities until 1963.

During this period, Soros developed the theory of reflexivity to extend the ideas of his tutor at the London School of Economics, Karl Popper.[59] Reflexivity posits that market values are often driven by the fallible ideas of participants, not only by the economic fundamentals of the situation. Ideas and events influence each other in reflexive feedback loops. Soros argued that this process leads to markets having procyclical "virtuous" or "vicious" cycles of boom and bust, in contrast to the equilibrium predictions of more standard neoclassical economics.

反身性认为，市场价值往往受参与者易犯错的想法所驱动，而不仅仅是受经济基本面的影响。想法和事件在反身性反馈回路中相互影响。索罗斯认为，这一过程导致市场出现顺周期的“良性”或“恶性”繁荣与萧条循环，这与更标准的新古典经济学的均衡预测形成鲜明对比。

https://en.wikipedia.org/wiki/George_Soros