However, gold also possesses elemental properties that has made it an ideal metal for money throughout history. Sanat Kumar, a chemical engineer from Columbia University, broke down the periodic table to show why gold has been used as a monetary metal for thousands of years.
The Periodic Table
The periodic table organizes 118 elements in rows by increasing atomic number (periods) and columns (groups) with similar electron configurations. Just as in today’s animation, let’s apply the process of elimination to the periodic table to see why gold is money:
Gases and Liquids Noble gases (such as argon and helium), as well as elements such as hydrogen, nitrogen, oxygen, fluorine and chlorine are gaseous at room temperature and standard pressure. Meanwhile, mercury and bromine are liquids. As a form of money, these are implausible and impractical. Lanthanides and Actinides Next, lanthanides and actinides are both generally elements that can decay and become radioactive. If you were to carry these around in your pocket they could irradiate or poison you. Alkali and Alkaline-Earth Metals Alkali and alkaline earth metals are located on the left-hand side of the periodic table, and are highly reactive at standard pressure and room temperature. Some can even burst into flames. Transition, Post Transition Metals, and Metalloids There are about 30 elements that are solid, nonflammable, and nontoxic. For an element to be used as money it needs to be rare, but not too rare. Nickel and copper, for example, are found throughout the Earth’s crust in relative abundance. Super Rare and Synthetic Elements Osmium only exists in the Earth’s crust from meteorites. Meanwhile, synthetic elements such as rutherfordium and nihonium must be created in a laboratory.
Once the above elements are eliminated, there are only five precious metals left: platinum, palladium, rhodium, silver and gold. People have used silver as money, but it tarnishes over time. Rhodium and palladium are more recent discoveries, with limited historical uses. Platinum and gold are the remaining elements. Platinum’s extremely high melting point would require a furnace of the Gods to melt back in ancient times, making it impractical. This leaves us with gold. It melts at a lower temperature and is malleable, making it easy to work with.
Gold as Money
Gold does not dissipate into the atmosphere, it does not burst into flames, and it does not poison or irradiate the holder. It is rare enough to make it difficult to overproduce and malleable to mint into coins, bars, and bricks. Civilizations have consistently used gold as a material of value.
Perhaps modern societies would be well-served by looking at the properties of gold, to see why it has served as money for millennia, especially when someone’s wealth could disappear in a click.
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Did you know that nearly one-fifth of all the gold ever mined is held by central banks?
Besides investors and jewelry consumers, central banks are a major source of gold demand. In fact, in 2022, central banks snapped up gold at the fastest pace since 1967.
However, the record gold purchases of 2022 are in stark contrast to the 1990s and early 2000s, when central banks were net sellers of gold.
The above infographic uses data from the World Gold Council to show 30 years of central bank gold demand, highlighting how official attitudes toward gold have changed in the last 30 years.
Why Do Central Banks Buy Gold?
Gold plays an important role in the financial reserves of numerous nations. Here are three of the reasons why central banks hold gold:
Balancing foreign exchange reserves Central banks have long held gold as part of their reserves to manage risk from currency holdings and to promote stability during economic turmoil. Hedging against fiat currencies Gold offers a hedge against the eroding purchasing power of currencies (mainly the U.S. dollar) due to inflation. Diversifying portfolios Gold has an inverse correlation with the U.S. dollar. When the dollar falls in value, gold prices tend to rise, protecting central banks from volatility. The Switch from Selling to Buying In the 1990s and early 2000s, central banks were net sellers of gold. There were several reasons behind the selling, including good macroeconomic conditions and a downward trend in gold prices. Due to strong economic growth, gold’s safe-haven properties were less valuable, and low returns made it unattractive as an investment. Central bank attitudes toward gold started changing following the 1997 Asian financial crisis and then later, the 2007–08 financial crisis. Since 2010, central banks have been net buyers of gold on an annual basis. Here’s a look at the 10 largest official buyers of gold from the end of 1999 to end of 2021: Rank CountryAmount of Gold Bought (tonnes)% of All Buying #1🇷🇺 Russia 1,88828% #2🇨🇳 China 1,55223% #3🇹🇷 Türkiye 5418% #4🇮🇳 India 3956% #5🇰🇿 Kazakhstan 3455% #6🇺🇿 Uzbekistan 3115% #7🇸🇦 Saudi Arabia 1803% #8🇹🇭 Thailand 1682% #9🇵🇱 Poland1282% #10🇲🇽 Mexico 1152% Total5,62384% Source: IMF The top 10 official buyers of gold between end-1999 and end-2021 represent 84% of all the gold bought by central banks during this period. Russia and China—arguably the United States’ top geopolitical rivals—have been the largest gold buyers over the last two decades. Russia, in particular, accelerated its gold purchases after being hit by Western sanctions following its annexation of Crimea in 2014. Interestingly, the majority of nations on the above list are emerging economies. These countries have likely been stockpiling gold to hedge against financial and geopolitical risks affecting currencies, primarily the U.S. dollar. Meanwhile, European nations including Switzerland, France, Netherlands, and the UK were the largest sellers of gold between 1999 and 2021, under the Central Bank Gold Agreement (CBGA) framework. Which Central Banks Bought Gold in 2022? In 2022, central banks bought a record 1,136 tonnes of gold, worth around $70 billion. Country2022 Gold Purchases (tonnes)% of Total 🇹🇷 Türkiye14813% 🇨🇳 China 625% 🇪🇬 Egypt 474% 🇶🇦 Qatar333% 🇮🇶 Iraq 343% 🇮🇳 India 333% 🇦🇪 UAE 252% 🇰🇬 Kyrgyzstan 61% 🇹🇯 Tajikistan 40.4% 🇪🇨 Ecuador 30.3% 🌍 Unreported 74165% Total1,136100% Türkiye, experiencing 86% year-over-year inflation as of October 2022, was the largest buyer, adding 148 tonnes to its reserves. China continued its gold-buying spree with 62 tonnes added in the months of November and December, amid rising geopolitical tensions with the United States. Overall, emerging markets continued the trend that started in the 2000s, accounting for the bulk of gold purchases. Meanwhile, a significant two-thirds, or 741 tonnes of official gold purchases were unreported in 2022. According to analysts, unreported gold purchases are likely to have come from countries like China and Russia, who are looking to de-dollarize global trade to circumvent Western sanctions.
There were several reasons behind the selling, including good macroeconomic conditions and a downward trend in gold prices. Due to strong economic growth, gold’s safe-haven properties were less valuable, and low returns made it unattractive as an investment.
Central bank attitudes toward gold started changing following the 1997 Asian financial crisis and then later, the 2007–08 financial crisis. Since 2010, central banks have been net buyers of gold on an annual basis.
Here’s a look at the 10 largest official buyers of gold from the end of 1999 to end of 2021:
Source: IMF
The top 10 official buyers of gold between end-1999 and end-2021 represent 84% of all the gold bought by central banks during this period.
Russia and China—arguably the United States’ top geopolitical rivals—have been the largest gold buyers over the last two decades. Russia, in particular, accelerated its gold purchases after being hit by Western sanctions following its annexation of Crimea in 2014.
Interestingly, the majority of nations on the above list are emerging economies. These countries have likely been stockpiling gold to hedge against financial and geopolitical risks affecting currencies, primarily the U.S. dollar.
Meanwhile, European nations including Switzerland, France, Netherlands, and the UK were the largest sellers of gold between 1999 and 2021, under the Central Bank Gold Agreement (CBGA) framework.
Which Central Banks Bought Gold in 2022?
In 2022, central banks bought a record 1,136 tonnes of gold, worth around $70 billion. Türkiye, experiencing 86% year-over-year inflation as of October 2022, was the largest buyer, adding 148 tonnes to its reserves. China continued its gold-buying spree with 62 tonnes added in the months of November and December, amid rising geopolitical tensions with the United States. Overall, emerging markets continued the trend that started in the 2000s, accounting for the bulk of gold purchases. Meanwhile, a significant two-thirds, or 741 tonnes of official gold purchases were unreported in 2022. According to analysts, unreported gold purchases are likely to have come from countries like China and Russia, who are looking to de-dollarize global trade to circumvent Western sanctions.
