Finance interest: Difference between revisions
From wikinotes
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real: | real: | ||
effective: | effective: | ||
principal: amount lent | |||
compounding-period: interval that interest is added to the principal (ex. quarterly) | |||
periodic-return: percentage paid per compounding-period | |||
num-periods: number of periods until complete (or in observed timespan ex. 1yr) | |||
</syntaxhighlight> | </syntaxhighlight> | ||
</blockquote><!-- Terminology --> | </blockquote><!-- Terminology --> | ||
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( 1 + \texttt{periodic-return})^{ \texttt{num-periods} } - 1 | ( 1 + \texttt{periodic-return})^{ \texttt{num-periods} } - 1 | ||
</math> | </math> | ||
<syntaxhighlight lang="python"> | <syntaxhighlight lang="python"> |
Revision as of 03:53, 2 November 2021
Overview
TODO:
how are interest rates set?
Terminology
yield: return: nominal: real: effective: principal: amount lent compounding-period: interval that interest is added to the principal (ex. quarterly) periodic-return: percentage paid per compounding-period num-periods: number of periods until complete (or in observed timespan ex. 1yr)
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
Annual Interest Rate