Austerity 'Does Not Deliver': HSBC Chief Economist

Austerity alone does not deliver the rewards it is meant to and the threats of stunted economic growth and recession remain high in the euro zone, Stephen King, global chief economist at HSBC told CNBC.

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Speaking at the World Economic Forum in Davos, King gave Portugal as an example of a country that had taken the austerity route and followed all the rules but was still struggling.

"There is a risk of that; look at Portugal, it has done all the right things, it has stuck to austerity, it has stuck to the programs set by the EU and others and yet Portugal's bond yields are incredibly high," he said.

"The expectation from austerity was that markets reward countries for delivering austerity in the form of much lower borrowing costs and that hasn't happened," King added.

Despite the austerity drive, the euro zone was still plagued by talk of default and speculation that it might break up, he pointed out.

"These things effectively mean that austerity does not deliver the rewards it is supposed to deliver," King said.

"The consequence is that you are left with countries that have zero growth, possibly recession and interest rates which are painfully high and that combination is unsustainable."

He said that the failure of austerity put fiscal transfer back to the top of the agenda. Germany has been vehemently opposed to direct fiscal transfers from the better performing northern euro zone to the struggling southern countries.

"If they can't get the rewards from the markets, presumably there would have to be some kind of fiscal transfer mechanism to allow their yields to come back down. This brings the whole issue of what the ECB does, what happens with a fiscal union. It has to help these countries, not just deliver austerity," King said.