Deflationary / Inflationary token
An inflationary token has a supply that grows over a measured period, while a deflationary token has a supply that shrinks over that period.
✦ Key Insight
Supply growth can dilute ownership percentages, while supply contraction can make units scarcer. Neither automatically makes a token good or bad. Readers should examine the reason for issuance or burns and whether incentives support network use.
✕ Common Misconceptions
Do not equate deflation with guaranteed price appreciation or inflation with guaranteed price decline. Also distinguish token supply inflation from changes in consumer-price inflation in a national economy.
Detailed Explanation
Aliases and acronyms: Deflationary token; inflationary token; token inflation; token deflation
Plain-English explanation: Inflationary and deflationary describe supply direction, not whether a token's market price rises or falls. New issuance pushes supply upward, while burns or other removal mechanisms push it downward. A token can switch between inflationary and deflationary periods when those forces change.
Analogy: Imagine a pool where one pipe adds water and another drains it: the water level rises or falls depending on which flow is larger.
How it works: Measure supply at two points in time or compare issuance with removal. If net issuance is positive, supply is inflationary for that period. If more tokens are permanently removed than added, supply is deflationary for that period. Rules may be fixed or activity-dependent.
FAQs
Q: Can a token be inflationary one month and deflationary the next?
A: Yes. If issuance and burns vary with network activity, net supply growth can change over time.
Q: Is Bitcoin inflationary?
A: Bitcoin's supply still increases through block subsidies until the maximum supply is reached, but its issuance rate declines over time.
Q: Does deflation mean fewer tokens are circulating?
A: Not always. Total supply can fall while circulating supply changes differently because locked tokens may also unlock.
Sources
• Ethereum.org - ETH supply and issuance
• EIP-1559
In Practice
Dig Deeper
Total Supply
Total supply is the number of tokens that currently exist, usually excluding tokens that have been permanently destroyed or burned. It is different from circulating supply, which attempts to measure tokens actively available to the market, and maximum supply, which represents an upper limit if one exists.
Emission schedule
An emission schedule defines how and when new or previously reserved tokens are introduced into circulation.
Burn
A token burn permanently removes tokens from spendable supply according to the token or protocol's rules.