The Chinese Trilemma - Vivek Kaul's Diary
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The Chinese Trilemma

Jan 14, 2016


This column is essentially an extension of yesterday's column. At the outset I would like to thank Anindya Banerjee who works at the FX and interest rate desk at Kotak Securities, for putting me on this track. The idea for this column came from him.

As I discussed in the column yesterday, China has been using its massive foreign exchange reserves to defend the value of the yuan against the dollar. Between December 2014 and December 2015, the People's Bank of China, the Chinese central bank, has used $557 billion to defend the yuan against the dollar.

In the process the Chinese foreign exchange reserves fell by 14.5% to $3.33 trillion between December 2014 and December 2015. Interestingly, this is the first time since December 1999 that Chinese foreign exchange reserves have fallen during the course of a year.

For more than eighteen months, the total amount of dollars leaving China has been higher than the dollars coming into it. The Chinese foreign exchange market is heavily rigged by the Chinese central bank. In a freer environment, as dollars would have left China, those taking their money out of China would have sold yuan and bought dollars. This would have pushed up the demand for dollars.

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In the process, dollar would have appreciated and the yuan depreciated. China has intervened heavily in the foreign exchange market over the years to ensure that the yuan has had a more or less fixed value against the dollar, for extended periods of time.

In an environment where more dollars are leaving China than entering it, fixing the value of the yuan against the dollar is a tricky thing to do. People taking their money out of China need to sell yuan and buy dollars. In a freer market, this would mean the yuan depreciating and the dollar appreciating. In order to maintain a fixed value, the Chinese central bank has to intervene.

In order to ensure that there is no scarcity of dollars in the market, it buys yuan and sells dollars. The trouble is that China cannot create dollars out of thin air, only the Federal Reserve of the United States can do that. China does not have an endless supply of dollars. This explains why the People's Bank of China has allowed a gradual depreciation of the yuan against the dollar over the last six months. In August 2015, one dollar was worth around 6.30 yuan. Currently, one dollar is worth around 6.57 yuan.

Over and above this China also faces what economists call "the impossible trinity" or simply the trilemma. This essentially means that any central bank cannot pursue a stable exchange rate policy, allow a free movement of capital in and out of the country and at the same time run an independent interest rate policy.

How is this applicable in the Chinese case? For more than eighteen months, the total amount of dollars leaving China has been greater than the total number dollars entering it. The Chinese central bank has defended the value of the yuan against the dollar (i.e. tried to have a stable exchange rate) by selling dollars and buying yuan. When it does this, it leads to a scarcity of yuan in the financial system. This is likely to push up interest rates. Given that economic growth has been slow, a higher interest rate is not something that the Chinese central bank wants.

And this is where the trilemma comes in. If the People's Bank of China wants a stable exchange rate against the dollar and a reasonably free movement of dollars into and outside China, then it loses control of the interest rate that it wants to set in the economy.

If it wants to control the interest rate in such an environment, then it needs to print or create yuan digitally and pump it into the financial system. This will ensure that there are enough yuan going around and interest rates will continue to remain low. But the moment there are enough yuan going around, yuan will again start to depreciate against the dollar.

What happens if the Chinese central bank stops defending the value of the yuan against the dollar? Given that, more dollars are leaving China than entering it, the value of the dollar would appreciate against the yuan. The value of the yuan would depreciate against the dollar. This would happen very quickly. But a lower Chinese yuan would hurt those who have borrowed in dollars. And there could be significant debt defaults.

As Banerjee points out in a recent research note titled Economic Trilemma and China: "It is estimated that between USD 1-2 trillion of unhedged carry trades may been floating in the Chinese economy (the guys who have borrowed in US Dollar and invested in Yuan interest rate to capture the interest rate differential) by the end of 2014. A sharp and swift depreciation in the value of the Yuan can cause these players to panic, which may lead to a situation of run on the financial system."

What this means is that if the value of the yuan depreciates rapidly against the dollar, a lot of investors who have invested in China would suddenly need more yuan to buy the dollars they need to pay off their dollar debts. This would lead to a situation where these investors would sell yuan to buy dollars, in order to pay off their dollar debts.

It is worth remembering here that further the yuan falls in value against the dollar, more will be the yuan required by these investors to buy the dollars they need to repay their dollar debt. In order to limit this, many investors would want to sell yuan and buy dollars at the same time, before the yuan falls any further. As these investors sell yuan and buy dollars, there will be tremendous pressure on the value of the yuan. And what these investors would have wanted to avoid, their actions would end up triggering i.e. a significantly lower value of the yuan against the dollar.

In order to avoid this situation, the People's Bank of China will have to keep selling dollars and buying yuan. But there is only so many dollars that the Chinese central bank has. As Banerjee says the situation can lead to a run on the financial system.

And that is something that the Chinese government as well as the central bank would like to avoid. Hence, in the days to come, there will be no rapid depreciation in the value of the yuan against the dollar. Having said that a slow and steady depreciation of the yuan against the dollar is likely to continue. This is primarily because even though the Chinese have more than three trillion dollars as foreign exchange reserves not all of it is liquid. As I had discussed in yesterday's column, these reserves are invested in financial securities all over the world. And not all of these securities can be sold immediately to get dollars in order to defend the value of the yuan against the dollar.

Wei Yao and Jason Daw of Societe Generale in an August 2015 report estimated that the ar chest of People's Bank of China "is sizeable, but not unlimited." "We think that $1 trillion is the absolute maximum the People's Bank of China can sell," they wrote. Between July end and December end the Chinese central bank has sold around $321 billion in order to defend the value of the yuan against the dollar. They still have a lot of money left, but things could get tricky if money keeps leaving China.

Vivek Kaul is the Editor of the Diary and The Vivek Kaul Letter. Vivek is a writer who has worked at senior positions with the Daily News and Analysis (DNA) and The Economic Times, in the past. He is the author of the Easy Money trilogy. The latest book in the trilogy Easy Money: The Greatest Ponzi Scheme Ever and How It Is Set to Destroy the Global Financial System was published in March 2015. The books were bestsellers on Amazon. His writing has also appeared in The Times of India, The Hindu, The Hindu Business Line, Business World, Business Today, India Today, Business Standard, Forbes India, Deccan Chronicle, The Asian Age, Mutual Fund Insight, Wealth Insight, Swarajya, Bangalore Mirror among others.

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5 Responses to "The Chinese Trilemma"


Jan 18, 2016

indeed very good article gives us specific knowledge on current financial crisis in the marker



krishna rao

Jan 16, 2016

Superb analysis. So,devaluation also should be in small steps for the economies to stabilize. But currency wars by the individual countries for their economic viability may hasten the trend.


Alpesh Raval

Jan 14, 2016

Wow, after long time I have gone through such a long detailed reading experience. I started actually just to know what about Trilemma ! I finished it word by word, line by line and really it is good reading material. In fact so much information in detailed and crystal clear format given to me kind a reader for quick and easy understanding. wow it's time for INR to be more stronger!thanks Alpesh

Like (1)


Jan 14, 2016

Usually you write good articles but in this one, one line is repeated again and again, with different English.

Like (1)


Jan 14, 2016

What would be it's impact on India write in your next article as some of our corporations have borrowed from China either directly or indirectly

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