Hello, I'm Philip Kogan, the Bartleby Columnist of the Economist.

Welcome to Money Talks.

Coming up on the program, we speak to Sir Paul Tucker, who was deputy governor of the Bank of England until 2013.

We've handed over high policy to unelected officials, I think that's a mistake.

And the ups and downs of the solar energy industry.

If this is a solar coaster, you have to picture China as very much the first wagon in the

carriage. It leads the industry up and it takes the industry over the precipice.

First, it's been a week of international handshakes for President Trump. The latest was with North Korea's Kim Jong-un.

But the G7 summit in Canada didn't go quite to plan, despite those very firm handshakes, one from Emmanuel Macron which left a thumbprint on President Trump's hand.

I'm happy to announce that we've released a joint communique by all seven countries.

What looked like a joint agreement between the seven nations

was undone on the plane when Mr. Trump

tweeted that he wouldn't endorse it after all.

The problem, the unfair treatment of other

countries in trade. Samia Keynes is the trade and economic editor for the

economist and is in Washington. Samia, what did happen at the G7 Summit?

That is a very good question.

We know from the President's press conference that he had been discussing NAFTA, the North American Free Trade Agreement with Justin Trudeau,

the Canadian Prime Minister.

He seemed to be fairly positive in his press conference about that.

He really seems to want this thing called a sunset

clause in NAFTA, which the original version was for that to mean that the deal would

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