Ratings agency Moody's has downgraded the long-term debt ratings of New Zealand's four major banks.
 
They are all subsidiaries of Australia's big four - ANZ National, Westpac, BNZ and ASB.
 
They have cut the rating to double A 3 from double A 2.
 
The downgrade follows a similar move on
         
        
Moody's downgrades major banks' ratings
Newstalk ZB
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