Ethereum: Why Has The Supply Increased Since The Merge?

Key Takeaways

• Ethereum's total supply has been increasing since the Merge.
• The Merge reduced ETH emissions by 89.4%, but validators are still rewarded with new ETH.
• Transaction fees need to reach 16 gwei or higher for Ethereum’s fee-burning mechanism to offset ETH issuance completely.

While the shift to Proof-of-Stake significantly reduced Ethereum’s ETH emissions, higher transaction fees are necessary for the network’s monetary system to become deflationary.

ETH Total Supply Inflating

Ethereum’s token supply is still increasing despite the blockchain’s transition to Proof-of-Stake.

According to data from ultrasound. Ethereum’s token supply had grown by 418.88 ETH at the time of writing since the blockchain was successfully upgraded on Sept. 15.

Some thought that Ethereum’s switch from Proof-of-Work to Proof-of-Stake, known in the crypto space as the “Merge,” would immediately result in Ethereum’s monetary system becoming deflationary. Unlike “inflationary” money, a deflationary system is characterized by a gradual reduction in the money supply over time.

Although the supply of ETH did briefly drop in the immediate aftermath of the Merge (by 248 ETH within twelve hours of the upgrade), it has reached a new all-time high. So, did Ethereum’s Merge fail to live up to its promises? Not at all.

Ethereum’s New Monetary Policy

Before the Merge, Ethereum distributed about 13,000 ETH per day to miners (who ran the blockchain’s execution layer) and 1,600 ETH per day to validators (who ran the consensus layer, or the Beacon Chain). At the time, Ethereum’s total supply was inflating by roughly 4.62% a year.

When Ethereum’s execution and consensus layers merged, the blockchain stopped distributing rewards to miners, meaning that ETH emissions dropped by 89.4%. Validators still receive ETH, but they only accounted for 10.6% of the previous rewards. Consequently, ETH yearly emissions decreased to approximately 0.49%.

Furthermore, in August 2021, Ethereum implemented EIP-1559, which introduced an ETH burning mechanism. Ethereum users pay a base fee (denominated in gwei, or one-billionth of 1 ETH) for each transaction. That tax is automatically removed from circulation. Ultrasound.money data indicates that since the upgrade was implemented 407 days ago, 2,625,258.71 ETH has been burned.

However, transaction costs vary depending on how many people (or algorithms) use the blockchain at any given time. While gas prices currently sit at around 12 gwei, they routinely reach 200 gwei during the bull run—occasionally exceeding 100,000 gwei. According to the Ethereum Foundation, gas fees need to exceed 16 gwei for the ETH burn mechanism to negate the ETH issued to validators. In other words, ETH’s total supply will increase whenever Ethereum transactions cost 15 gwei or less and decrease if they require 16 gwei or more.

It’s worth repeating that even though Ethereum’s token supply has continued expanding in the wake of the Merge, the decrease in issuance is significant. Without the shift to Proof-of-Stake, the supply would have already increased by more than 20,994.04 ETH—instead of merely 418.88 ETH.

Original Post