By Gareth Vaughan
The country's banks as a group remain comfortably on top of their requirements under the Reserve Bank's core funding ratio (CFR).
The latest Reserve Bank data shows locally incorporated registered banks with a combined CFR of 85.7% at the end of April.
That's up from 84.8% a month earlier, and is based on core bank funding of $250.058 billion and total lending of $291.946 billion.
Introduced in April 2010 as a move designed to reduce New Zealand banks' reliance on short-term overseas borrowing, the CFR currently sets out that banks must secure funding for at least 75% of their lending from equity, retail deposits, and wholesale sources such as bonds with durations of at least a year.
The Reserve Bank lifted the CFR to 70% from 65% on July 1, 2011, and to 75%, from January 1, this year.
The CFR is one of four macro-prudential tools included in a memorandum of understanding signed between Reserve Bank Governor Graeme Wheeler and Finance Minister Bill English last month.
The tools are there for the Reserve Bank to use if it chooses to, on a temporary basis, to try and dampen excessive growth in credit and asset prices and strengthen the financial system.
Under the macro-prudential tool agreement, the Reserve Bank is able to adjust the CFR to alter the amount of equity, retail funds and longer-term wholesale funding banks have to hold.
Since the April 2010 introduction the highest the combined CFR for locally incorporated banks has been was 86% in October last year, and lowest was 77.8% in July 2010.
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