Three of the big four banks have all reported results - NAB, ANZ and Westpac - with the CEOs of all three less than two years into their roles. It's a highly competitive sector across business banking, home lending and deposits. But the expense to income ratio across the big banks is over 50 per cent – the highest level in 15 years.

Sean Aylmer speaks to Noel Williams, PwC Australia’s Banking and Capital Markets Leader, about the key trends within the big bank results.

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