One of the key forces behind the bubbles that led to the financial crisis is back
china bubble artist
china bubble artist

(Canadian bubble artist Fan Yang performs during "The Gazillion Bubble Show" in Beijing, July 31, 2011.Reuters)

There are plenty of reasons why the financial crisis occurred.

From subprime mortgages to lax regulation over the financial industry, there are many places to lay blame for the worst economic disaster since the Great Depression.

One of the biggest spots was the global imbalance of current accounts, according to HSBC Chief Economist Janet Henry.

The imbalance from a world where some countries were hoarding and others were spending too freely led to malinvestment and ultimately bubbles, according to Henry.

The worrying issue that faces the world now, Henry said in a note to clients, is that these imbalances are growing once again.

"Just under a decade ago, the global savings glut was widely blamed for the misallocation of resources that led to bubbles, busts and ultimately the global financial crisis," wrote Henry. "The fact that global imbalances widened again in 2015 and that in dollar terms they will be close to record highs this year poses risks for both debtor and creditor countries."

That doesn't mean that we are doomed, according to Henry, but things must be done to prevent the disasters of the financial crisis from repeating themselves.

What is a current account?

In essence the current account is the monetary value of the total flow of goods, services, and investments moving into or out of a country. It counts everything from the US importing South Korean-made cars to Chinese investors buying houses in Canada to Japanese people investing in US Treasury bonds.

Add up all of those flows and a country has a deficit or a surplus. Thus, if a country imports more goods than they export and foreign investors are coming into the markets more than the country's investors are putting money to work abroad, that country is running a current-account deficit. The US and UK both run current-account deficits.

On the other hand, if the country is a net exporter and money flows to other countries for investments, the country is running a current-account surplus. The countries running surpluses that Henry is most concerned about are China, Japan, and Germany.

Screen Shot 2016 09 16 at 1.36.13 PM
Screen Shot 2016 09 16 at 1.36.13 PM

(HSBC)

These surpluses have built up to nearly historic levels for a few reasons, said Henry. Weak internal demand in countries with current-account surpluses means those countries' citizens are under-consuming and thus saving too much money. Additionally, the savings are being invested outside of the country.

"Running persistent current account surpluses implies that these economies are constantly saving more than they are investing, preferring to invest those savings overseas," said Henry in the note. "In other words, they are building up a large net international investment position: something countries with aging populations (including Japan, Germany, China and South Korea) can argue is necessary to sustain living standards."