MIP-16: Transition to Optimal MTRG Emission Curve and Suspension of the MTRG Auction Mechanism

Summary

This proposal recommends transitioning MTRG emissions to the optimal emission curve ratified under MIP-10 and discontinuing the on-chain MTRG auction mechanism.
Specifically, it proposes:

  • Disabling the MTRG on-chain auction mechanism
  • Implementing the optimal emission curve with a gradually decreasing emission rate

These changes aim to improve emission efficiency, decouple MTRG and MTR price dynamics and its impact on staking rewards, and strengthen the long-term token economics.


Motivation

While the MTRG auction mechanism was initially designed to enable market-driven emissions, current market conditions reveal its limitations:

  • The reserve price of 0.5 MTR/MTRG inhibits emissions when MTRG trades below that level, resulting in reduced staking yield for validators and delegators.
  • User bids have largely replaced auto-bids due to persistent undervaluation in auctions, further reducing auction effectiveness and limiting MTRG availability.
  • Staking yields are becoming inconsistent and less predictable, potentially deterring validator participation and undermining decentralization.

Moving to the emission curve approved in MIP-10 and disabling on-chain MTRG auction ensures a predictable, transparent supply schedule and decouples MTRG issuance from auction-dependent MTR demand.

More details on the on-chain auction mechanism can be found here - https://docs.meter.io/overview-of-meter/on-chain-auctions


Specification

1. Disable the MTRG on-auction mechanism

  • MTRG emissions via the on-chain auction will be suspended.
  • MTRG will be emitted algorithmically every 24 epochs based on staking weight.
  • MTR demand will be limited to transaction fees and other protocol use cases.
  • Auction-related staking functions (user-bid, auto-bid) will be disabled.
  • MTR and MTRG pricing will no longer be algorithmically linked.
  • The auction mechanism can be reactivated via a future governance vote.

2. Implement MIP-10 Emission Curve


Rationale

  • Validator Incentives: Predictable rewards strengthen validator confidence and simplify staking decisions.
  • Economic Efficiency: Reduces inflationary pressure and eliminates inefficient auction pricing mechanisms.

Implementation

  • Transition to algorithmic emissions based on staking weights.
  • Disable the on-chain MTRG auction mechanism.

Voting Options

:white_check_mark: Yes – Approve the proposed emission curve transition, disable the auction, and decouple MTR/MTRG pricing.
:x: No – Maintain the current auction-based mechanism and reserve price model.

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