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Special drawing rights

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Special drawing rights, often called SDRs, are supplementary foreign exchange reserve assets. They are maintained by the International Monetary Fund (IMF). It is important to understand that SDRs are not a currency in themselves. Instead, they serve as units of account for the IMF. An SDR represents a claim to currency held by IMF member countries. These countries can exchange their SDRs for actual, usable currency.

The mechanism for determining the value of an SDR involves a currency basket. This basket is a collection of five key international currencies. The IMF reviews this basket every five years to ensure accuracy. To choose the currencies, the IMF looks at two main factors. First, they examine the amount of exports sold in that currency. Second, they check if the currency is "freely usable." This means the currency is used widely in international transactions and held as a reserve.

The current SDR basket consists of five specific currencies with different weights. The U.S. dollar makes up 43.38% of the basket. The euro follows at 29.31%. The Chinese yuan accounts for 12.28% of the value. The Japanese yen represents 7.59%, and the British pound sterling makes up the final 7.44%. These weights are adjusted to reflect the prominence of each currency in global trade. If the IMF Executive Board decides to change these weights, at least 70% of members must vote in favor.

The history of the SDR began in 1969 under the Bretton Woods system. At that time, the SDR was tied to the value of gold. Specifically, one SDR was worth 0.888671 grams of gold, which was roughly one U.S. dollar. Following the collapse of the Bretton Woods agreement in the early 1970s, the system changed. In 1974, the SDR moved to a basket of 16 currencies. By 1981, the basket was reduced to just five currencies.

SDRs play a significant role during global economic shifts. For example, during the 2008 financial crisis, the IMF allocated an additional 182.6 billion SDRs. This was done to provide liquidity to the global economic system. By October 2014, the total number of SDRs in existence reached 204 billion. The largest single allocation occurred on August 23, 2021. In response to the COVID-19 pandemic, the IMF allocated 456.5 billion SDRs, worth about $650 billion. This single move represented roughly two-thirds of all SDRs in circulation at that time.

While SDRs are useful, the IMF describes them as an "imperfect reserve asset." One reason for this is that they must be exchanged into a currency before they can be used. Additionally, SDRs cannot be held by private parties. They are only available to IMF member countries, the IMF itself, and a few licensed organizations. Because of this, they cannot be used directly for market intervention. They also cannot be used to maintain export competitiveness through exchange rates.

SDRs also connect to broader discussions about the power of the U.S. dollar. The SDR often gains prominence when the U.S. dollar is weak or unsuitable as a reserve asset. In the past, the U.S. held a conservative monetary policy that limited the amount of dollars in existence. This created a need for SDR allocations to prevent a shortage of liquidity. Furthermore, leaders from emerging markets, such as China, have promoted the SDR. They have suggested ways to make the SDR satisfy the demand for a global reserve currency.

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