Article originally appeared on The Project Syndicate (here) and written by economist Nouriel Roubini.

As we mark the decennial of the collapse of Lehman Brothers, there are still ongoing debates about the causes and consequences of the financial crisis, and whether the lessons needed to prepare for the next one have been absorbed. But looking ahead, the more relevant question is what actually will trigger the next global recession and crisis, and when.

The current global expansion will likely continue into next year, given that the US is running large fiscal deficits, China is pursuing loose fiscal and credit policies, and Europe remains on a recovery path. But by 2020, the conditions will be ripe for a financial crisis, followed by a global recession.

There are 10 reasons for this. First, the fiscal-stimulus policies that are currently pushing the annual US growth rate above its 2% potential are unsustainable.
Second, because the stimulus was poorly timed, the US economy is now overheating, and inflation is rising above target. The US Federal Reserve will thus continue to raise the federal funds rate from its current 2% to at least 3.5% by 2020, and that will likely push up short- and long-term interest rates as well as the US dollar.

Meanwhile, inflation is also increasing in other key economies, and rising oil prices are contributing additional inflationary pressures. That means the other major central banks will follow the Fed toward monetary-policy normalization, which will reduce global liquidity and put upward pressure on interest rates.

Third, the Trump administration’s trade disputes with China, Europe, Mexico, Canada, and others will almost certainly escalate, leading to slower growth and higher inflation. 

Fourth, other US policies will continue to add stagflationary pressure, prompting the Fed to raise interest rates higher still. The administration is restricting inward/outward investment and technology transfers, which will disrupt supply chains.

Fifth, growth in the rest of the world will likely slow down – more so as other countries will see fit to retaliate against US protectionism. China must slow its growth to deal with overcapacity and excessive leverage; otherwise a hard landing will be triggered. And already-fragile emerging markets will continue to feel the pinch from protectionism and tightening monetary conditions in the US.

Sixth, Europe, too, will experience slower growth, owing to monetary-policy tightening and trade frictions. Moreover, populist policies in countries such as Italy may lead to an unsustainable debt dynamic within the eurozone. 

Seventh, US and global equity markets are frothy. Price-to-earnings ratios in the US are 50% above the historic average, private-equity valuations have become excessive, and government bonds are too expensive, given their low yields and negative term premia. And high-yield credit is also becoming increasingly expensive now that the US corporate-leverage rate has reached historic highs. 

Eighth, once a correction occurs, the risk of illiquidity and fire sales/undershooting will become more severe. There are reduced market-making and warehousing activities by broker-dealers. Excessive high-frequency/algorithmic trading will raise the likelihood of “flash crashes.” And fixed-income instruments have become more concentrated in open-ended exchange-traded and dedicated credit funds.

Ninth, Trump was already attacking the Fed when the growth rate was recently 4%. Just think about how he will behave in the 2020 election year, when growth likely will have fallen below 1% and job losses emerge.

Since Trump has already started a trade war with China and wouldn’t dare attack nuclear-armed North Korea, his last best target would be Iran. By provoking a military confrontation with that country, he would trigger a stagflationary geopolitical shock not unlike the oil-price spikes of 1973, 1979, and 1990. Needless to say, that would make the oncoming global recession even more severe.

Finally, once the perfect storm outlined above occurs, the policy tools for addressing it will be sorely lacking. The space for fiscal stimulus is already limited by massive public debt. The possibility for more unconventional monetary policies will be limited by bloated balance sheets and the lack of headroom to cut policy rates. And financial-sector bailouts will be intolerable in countries with resurgent populist movements and near-insolvent governments.

Unlike in 2008, when governments had the policy tools needed to prevent a free fall, the policymakers who must confront the next downturn will have their hands tied while overall debt levels are higher than during the previous crisis. When it comes, the next crisis and recession could be even more severe and prolonged than the last.

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