
“Don’t bet against the American economy,” says The Economist in a recent special report. I understand where that sentiment is coming from. Over the years I have read many prophesies of doom, or at least of decline, for that economy, and often found them persuasive. On each occasion they have proved false. Two thoughts have struck me from this report: first that America’s success can’t be replicated by Europe, and that Europeans shouldn’t try; and second that America’s economic success, paradoxically, lies at the heart of its toxic politics. It is that last paradox which might cause the American success to unravel, as, to be fair, the report acknowledges.
My first insight flows from the principle of comparative advantage – a core economic insight originally articulated by David Riccardo in the 18th/19th Century. It is part of Economics 101, and is the critical idea about what drives international trade, and why such trade is mutually beneficial even if one economy imports stuff that it could make more efficiently for itself. It’s all about opportunity costs, as more modern language than Riccardo’s would have it. At a strategic level the theory of comparative advantage has massive predictive power – explaining so much of the world economy as we see it, including, for example, why exchange rates don’t match purchasing power parity. But as you try to get into more detailed, and tactically useful, predictions, economists have been unable to turn it into anything more precise, in spite of one or two attempts. Therefore it is left out the economic models that drive so much of the work of economists, and it does not progress beyond Economics 101. That is why so many economists, not least writers at The Economist, often forget that it is there and seem ignorant of how it actually plays out. So far as I can see, the great (and late) economist Paul Samuelson is one of the very few economists of modern times to properly have internalised its implications. He it was who pointed out that as undeveloped economies converged with advanced ones, the gains from trade between them would diminish, at the expense of the advanced economies. This does much to explain the relative economic stagnation of advanced economies since the financial crash of 2007-09, compared with the era of rampant globalisation before it (which happened after Samuelson died, having forecast it) – though there are other factors, not least demographics. And yet this is never mentioned amid the wringing of hands about the backlash against global trade, which is generally blamed on politics alone. And yet the invisible hand is so often behind the politics.
I have a another insight arising from Riccardo’s thesis. America’s recent success compared to Europe, as The Economist‘s report points out, is based on high-tech industries, where productivity has soared, while it has plodded elsewhere. This success is surely based on the scale of America’s market, and the relatively lack of legal and cultural barriers to trade and the movement of labour. This is clearly a source of comparative advantage over Europe – though not to China, which has a very similar advantage. This means that the relative productivity of the tech sector compared to others (making aircraft, for example) is always going to be greater in America than in Europe, apart from a few specialist niches. That will drive America to specialise in hi-tech industry, while Europe’s direct competitors will diminish – to the benefit of both, as an Economics 101 student can readily explain. If this the way of the invisible hand, then why does The Economist (and such luminaries as Mario Draghi the EU éminence grise with an economics training) spend so much time bemoaning Europe’s lagging hi-tech industry and urging it to to try harder? Economically literate politicians, like Mr Draghi, often do this sort of thing because it is a convenient argument for policies that are actually about economic efficiency in general . Journalists in more sophisticated publications have no such excuse. Europe is never going to match America, or China for that matter, in some areas and it will be a waste of effort trying. Meanwhile they are doing well enough exporting the many products where they do have comparative advantage – Europe does not operate with a large trade deficit, after all. Of course European leaders must keep trying to improve economic efficiency, and perhaps watching America will act as a spur, but a clearer understanding of the workings of comparative advantage would mean better-directed public investment.
Back to America. The Economist does not fail to attribute some of America’s success to an entrepreneurial zeitgeist – but it points to more solid factors too. First is that it has comparative advantage in industries that happen to be highly productive – not just in hi-tech, but also oil and gas. The former advantage stems from the size and flexibility of America’s product and labour markets – something that only China matches (India seems to be closer to Europe in this respect); the latter from a geological endowment. That’s all very well, but it creates tensions. The successful industries take off, but the corollary is that many others are left behind – and through the laws of comparative advantage – become less internationally competitive (as the dollar strengthens, and as they have to pay workers more to compete with the more productive sectors). This creates what Donald Trump calls “American carnage” – the flip side to economic flexibility, as factories close and more productive workers flee to the booming parts of the country. How much the imbalance between globally successful industries and the mainstream is driving high inequality is an interesting question. The Economist suggests that the poorest quintile has seen significant income growth in recent years with tighter labour markets – but in the middle of the income distribution there may be more stagnation – as the higher income groups continue to do fabulously. But if things happen quickly in America, the human cost is going to be high. Rapid growth breeds “carnage”.
A further source of advantage, according to The Economist, is access to large numbers of immigrants, and not least those flooding across the southern border. This seems to act as a lubricant: jobs get filled more quickly in the growing parts of the economy. Europe has immigrants too (though not China) but finds these harder to integrate. And yet this is a central driver to the country’s toxic politics.
And so the rapid change to the structure of the US economy, and the flood of immigrants that its success attracts, are driving a sense of dislocation among Americans, which in turn is driving the highly destructive direction of US politics. This is placing all its critical institutions under threat. Four dangers lurk in particular: the capture of US institutions by a big business elite (“rent-seeking” in economic jargon); rolling back international trade through tariffs and other measures; clamping down on immigration; and finally macroeconomic instability arising from public finances going out of control.
The concentration of big business, leading to capture of the political system and the corruption of institutions to protect established business from competition (often in the name of social stability), is a familiar process. We see variations of it in many places (although sometimes, as in Russia and Hungary, the relationship between political leader and business elite is more complex) – and , indeed, it is alleged to have happened in America in the late 19th Century. The concentration is happening in America now, as is the business elite’s dabbling in politics (most egregiously by Elon Musk) – but The Economist does not think it is leading to significant anti-competitive practices. Competition between the major hi-tech companies remains intense and the pace of innovative product development is hardly slowing. We might raise eyebrows about the way money buys influence in the US, but it does not appear to be a big threat to the US economy.
The backlash against foreign trade is a more substantive concern and especially the advocacy of tariffs. This seems to be mainly driven by Donald Trump – and as such it is one of his most distinctive contributions to economic policy – but the Democrats are copying him. It is hard to see how such policies will do much to help the American public – their main effect will be to raise costs. However it may not do much damage to the main drivers of US economic health: the technology giants and the oil and gas industries. It is not good news for the rest of the world, however, especially Europe.
Anti-immigration will also probably not hurt as much as it could – unless Mr Trump is actually tries to fulfil his campaign rhetoric about mass deportation. The Economist is also quite sanguine about the impact of public budget deficits, which few politicians seem to be taking seriously. There remains little threat to the US Dollar as the world’s preeminent currency, and hence the ease with which dollar finance can be obtained.
Still, there does seem to be an unhealthy cycle here. Growth in the American economy remains robust, but it is driving US society apart. Politicians and commentators alike focus on the choices at the next election, always described as the most important in modern times. But neither side is able to deliver a killer blow to the other. If Mr Trump wins next week’s election, his movement will have to find ways to survive his departure, amid the inevitable chaos of his administration. If Kamala Harris wins it is hard to see that she can convince Trump supporters that she is taking America along the right course, continuing to fuel the destructive radicalism of the right. One way or another this political toxicity will surely affect the astonishing robustness and resilience of the US economy that is one of its main drivers.