Negative Interest Rates happened in the US in late 2008: http://blogs.wsj.com/marketbeat/2008/12/09/three-month-bill-yield-goes-negative/ http://blogs.wsj.com/

Negative Interest Rates happened in the US in late 2008: http://blogs.wsj.com/marketbeat/2008/12/09/three-month-bill-yield-goes-negative/ http://blogs.wsj.com/marketbeat/2008/12/09/three-month-bill-...