WhitePaperModel
WhitePaperInterestRateModel
The parameterized model described in section 2.4 of the original Venus Protocol whitepaper
Solidity API
constructor
Construct an interest rate model
Parameters
baseRatePerYear
uint256
The approximate target base APR, as a mantissa (scaled by 1e18)
multiplierPerYear
uint256
The rate of increase in interest rate wrt utilization (scaled by 1e18)
utilizationRate
Calculates the utilization rate of the market: borrows / (cash + borrows - reserves)
Parameters
cash
uint256
The amount of cash in the market
borrows
uint256
The amount of borrows in the market
reserves
uint256
The amount of reserves in the market (currently unused)
Return Values
[0]
uint256
The utilization rate as a mantissa between [0, 1e18]
getBorrowRate
Calculates the current borrow rate per block, with the error code expected by the market
Parameters
cash
uint256
The amount of cash in the market
borrows
uint256
The amount of borrows in the market
reserves
uint256
The amount of reserves in the market
Return Values
[0]
uint256
The borrow rate percentage per block as a mantissa (scaled by 1e18)
getSupplyRate
Calculates the current supply rate per block
Parameters
cash
uint256
The amount of cash in the market
borrows
uint256
The amount of borrows in the market
reserves
uint256
The amount of reserves in the market
reserveFactorMantissa
uint256
The current reserve factor for the market
Return Values
[0]
uint256
The supply rate percentage per block as a mantissa (scaled by 1e18)
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