title_body: What is the logic behind Cardano's tokenomics and emmission schedule?
upvoted_answer: The uncirculated (reserve) coins are distributed over time at a specific percentage rate.  As the reserve decreases in size, the amount distributed each epoch (5 days) will decrease.  At the current percentage rate the reserve will halve approximately every 4-5 years.
  
  Ada has a fixed supply of 45 billion coins
  30 Billion coins were issued/sold during the ICO rounds
  The other 15 Billion coins were placed into a reserve for operation of the network
  Every 5 days (each epoch) the transaction fees and a fixed percentage of the reserve are added to a pot
  A fixed percentage of the epoch's pot is added to the treasury and the rest are distributed as staking rewards
  
  Cardano monetary policy has a more precise explanation.