[ARC] ETH Interest Rate Curve Update

Hi Everyone :wave:

A gentle reminder, when v3 is deployed on Ethereum, the following ETH interest rate curve is to be implemented reflecting the community snapshot linked above:

Parameter Variable Borrowing (%) Stable Borrowing (%)
Uoptimal 80 80
Base 0 3
Slope1 5.75 7
Slope2 80 80
Reserve Factor 15 15

With stETH currently yielding 4.8%, @Llamaxyz will likely present a proposal to reduce the Slope1 parameter to 5.0%, or a slightly different premium depending what other LSDs, like rETH, are added once v3 is deployed on Ethereum.

Ideally, the Slope1 parameter is around 20bps higher than the highest LSD yield to ensure the Reserve’s utilization is less than the Uoptimal parameter.