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The collapse of the shares of Hong Kong-listed Hanergy and Goldin Financial is no surprise — it is their previous ascent that is shocking. Lex's Robert Armstrong says regulators need not intervene to protect speculators from themselves.
► Lex: http://bit.ly/1I14JZF
► FT Global Economy: http://bit.ly/1J5mmqH
► Hanergy Shares Plunge 47% | FT Business: http://bit.ly/1ISIp2E
