Online machine learning can warn of impending crisis – Hélène Rey

Hélène Rey
Hélène Rey
Photo: ECB

Online machine learning holds promise as a means of detecting impending crises early enough to take action, economist Hélène Rey says.

“Macro-prudential authorities in some cases have to take action to increase buffers two years before the problem arises,” Rey says in a recent interview with Central Banking. “So, you need a framework for early warning indicators.”

The online approach has been applied more widely in the machine learning literature, where the “true” model of the underlying data

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