ECON 2105 Lecture Notes - Lecture 4: Interest Rate Risk, Weighted Arithmetic Mean, Insider Trading

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Econ 2105 - lecture 3: savings and investment. Borrowing money from a bank: pay principal when the loan is due. Principal = the amount the loan is for: pay interest payments throughout the duration of the loan. Expressed as a percentage (interest rate) of the unpaid principal: pledge something as collateral. Collateral: bank can take it if you default on the loan: default: don"t pay interest and principal payments on time, ex. If you get a car loan, collateral = the car. Loans are illiquid because you have a long time period to pay them back. For providing liquidity, bank makes money on interest earned from loans and savers receive interest payments on their deposits: diversification: makes hundreds of different loans which spreads and reduces risk. Each depositor participates in all of the bank"s loans, so the failure of one lender to repay has a fractional impact on the individual depositors.

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