Finance interest
Overview
TODO:
how are interest rates set?
Terminology
yield: return: principal: amount lent compounding-period: interval that interest is added to the principal (ex. quarterly) periodic-return: percentage paid per compounding-period
Prime-Rate/Overnight Rate
The Bank of Canada sets their cost of borrwing nightly based on the economy.
If country's inflation or GDP are low, the overnight-rate will be decreased to encourage spending, and stimulate the economy.
Banks borrow money from the Bank of Canada, and are charged the overnight-rate for borrowing.
They in turn finance businesses and individuals at an interest-rate relative to the overnight-rate they borrwed at.The prime-rate is set at the bank's discretion, and is the rate the bank would charge their most dependable customers to borrow money.
Financings interest rates are generally expressed asprime + N%
Rate Types
Nominal Interest Rate
Does not account for inflation.
if nominal_rate == 5%: 5$ interest on each 100$ paidReal Interest Rate
Accounts for inflation.
Effective Interest Rate
Accounts for compounding interest (but not inflation).
TODO:
could you sub in real-interest-rate to account for inflation here?
https://www.calculatorsoup.com/calculators/financial/effective-interest-rate-calculator.php
Annual Percentage Rate
https://corporatefinanceinstitute.com/resources/knowledge/finance/annual-percentage-rate-apr/