May I have your attention please you can now book your train tickets on Uber and get

10% back in credits to spend on your next Uber ride so you don't have to walk home in the brain again.

Trains now on Uber. T's and of the Economist. Welcome to Money Talks.

Coming up on the programme. Britain's peer-to-peer lender funding circle is

going public. We hear from the CEO and co-founder. Financial services

businesses uniquely are really about trust and you know being a public company we believe will

increase trust in our platform. In just 10 years smartphones have risen to be large parts of several countries economies.

What happens when people stop buying new ones?

This is a system that were a big trade dispute or problem to emerge is actually quite fragile and that's something

to worry about and I think also probably something all of the companies involved are wrestling

with and thinking about.

First we turn to Argentina, which is in the full throes of a currency crisis.

Its peso has lost roughly half its value this year.

That pushes up inflation.

It means that the country has had to raise interest rates,

that makes it harder for it to repay its debts, all in all a really nasty situation for the government.

Mauricio Macri, the president, has turned to the IMF, which had already arranged a bailout

and asked it to give Argentina money faster.

Simon Cox, our emerging markets editor, is on the line from Hong Kong.

Simon, it's a job that you have to be used to crises coming

along every now and then and right now Argentina and Turkey are rivaling

each other for the bigger crisis. Who's ahead at the moment in that race?

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