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Anders Elowsson
@anderselowsson
In Orbit SSF, validators rotate based on size, leading larger validators to take on greater risks. We must therefore provide some incentives to ensure consolidation in the staking set. This post offers a framework for designing such incentives. https://ethresear.ch/t/consolidation-incentives-in-orbit-vorbit-ssf/21593
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Anders Elowsson
@anderselowsson
It consists of the two shape variables f1 and f2 in the range 0-1 and the scale variable f_y. The combined incentive attenuates the yield by f1*f_y(c+f2). The consolidation force f1 is the same for all validators and varies with consolidation level, i.e., validator count V.
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Anders Elowsson
@anderselowsson
The force distribution f2 is unique to each validator and varies with activity rate or size or both. It distributes the collective f1 across the validator set through f1*f2 to produce individual incentives. Several options are reviewed in the post, a summary plot shown here.
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Anders Elowsson
@anderselowsson
The green line estimates the assumed risks based on activity rate and is neutral w.r.t. the active stake of some endowment. The red line simulates a validator fee and is inversely proportional to validator size. Given some endowment, it is neutral w.r.t. occupied validator spots.
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Anders Elowsson
@anderselowsson
As an example, 4096 ETH can be divided into (A) 1 2048-ETH validator and 64 32-ETH validators or (B) 4 1024-ETH validators. With Orbit thresholded at 2048, active stake is roughly equal (so green sets A=B), but the protocol might prefer 4 validators over 65 (so red favors B).
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