If all international trade was done through eBay, the world would be 30 per cent richer

Frictionless trade is closer than ever before online, according to a new paper.

If all trade was as frictionless as it is on eBay, the world's real income could be almost 30 per cent higher, according to a new research paper from the European Trade Study Group, in a phenomenon known as the "death of distance".

The study looks at a dataset of cross-border transactions performed over eBay, modified to only include sales from businesses which were concluded with a fixed price; in other words, no auctions, and no customer-to-customer sales. While this removes the majority of transactions from their dataset, the modification is necessary to make eBay sales more accurately represent offline trade.

They find that, unsurprisingly, the effect of distance on trade volume is lessened online. Controlling for standard trade costs "such as the absence of a common language, a common legal system, a border, a colonial history, or a free-trade agreement", the distance effect is 65 per cent smaller online than offline.

That effect may be due to a mixture of three different frictions on trade: shipping costs, information frictions (you can, after all, only export to a country if you know someone there who wants to buy from you), or trust frictions.

Shipping costs appear to have little to do with the death of distance online – partially, it appears, because they have little correlation with distance. For instance, the average shipping cost, as a proportion of the cost of the item, is less from the USA to Iceland than it is for shipping from the USA to Canada or Mexico:

Instead, the real reduction in friction comes from the provision of both trust and information; as a result, "the distance-effect reduction is largest for exporting countries with high levels of corruption and which are relatively unknown to consumers, as measured by Google search results."

Worldwide, the increase in real income achieved by the reductions in distance effects is equal to 29 per cent, but that increase is spread very unevenly. At one end of the extreme, Brazil would see an increase in real income of 80 per cent, if only it could conduct all its trade with the rest of the world as efficiently as it does when that trade is on eBay.

At the other end, Belgium would actually lose out. It currently gains from information frictions, and would lose 0.9 per cent of its real income from trade if those frictions were abolished. It is the only country in the dataset which would lose out in such a way, though, and Britain would be up by over 40 per cent.

Of course, the study doesn't address every aspect of the online world. One of the reasons why eBay is so frictionless is that the company takes a (rather large) cut of the transaction in order to keep that infrastructure maintained. If all the world's trade was carried out on eBay, its annual revenue from international transactions alone would be in the order of $400bn, a significant increase on the $12bn it's earned in the last year. And let's not even talk about the Paypal fees.

Still, the paper strikes a blow in favour of those of us who think there are still significant gains to be made from the online economy.

eBay. Photograph: Getty Images

Alex Hern is a technology reporter for the Guardian. He was formerly staff writer at the New Statesman. You should follow Alex on Twitter.

Photo: Getty
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Who will win the Copeland by-election?

Labour face a tricky task in holding onto the seat. 

What’s the Copeland by-election about? That’s the question that will decide who wins it.

The Conservatives want it to be about the nuclear industry, which is the seat’s biggest employer, and Jeremy Corbyn’s long history of opposition to nuclear power.

Labour want it to be about the difficulties of the NHS in Cumbria in general and the future of West Cumberland Hospital in particular.

Who’s winning? Neither party is confident of victory but both sides think it will be close. That Theresa May has visited is a sign of the confidence in Conservative headquarters that, win or lose, Labour will not increase its majority from the six-point lead it held over the Conservatives in May 2015. (It’s always more instructive to talk about vote share rather than raw numbers, in by-elections in particular.)

But her visit may have been counterproductive. Yes, she is the most popular politician in Britain according to all the polls, but in visiting she has added fuel to the fire of Labour’s message that the Conservatives are keeping an anxious eye on the outcome.

Labour strategists feared that “the oxygen” would come out of the campaign if May used her visit to offer a guarantee about West Cumberland Hospital. Instead, she refused to answer, merely hyping up the issue further.

The party is nervous that opposition to Corbyn is going to supress turnout among their voters, but on the Conservative side, there is considerable irritation that May’s visit has made their task harder, too.

Voters know the difference between a by-election and a general election and my hunch is that people will get they can have a free hit on the health question without risking the future of the nuclear factory. That Corbyn has U-Turned on nuclear power only helps.

I said last week that if I knew what the local paper would look like between now and then I would be able to call the outcome. Today the West Cumbria News & Star leads with Downing Street’s refusal to answer questions about West Cumberland Hospital. All the signs favour Labour. 

Stephen Bush is special correspondent at the New Statesman. His daily briefing, Morning Call, provides a quick and essential guide to British politics.