Week 1: Banks, Money And The Credit Market Flashcards
Why is Chambar relevant?
Months have passed since they sold the last harvest, the only way farmers can buy inputs (tools) is to borrow, promising to repay at the next harvest
Farmers prefer local moneylenders vs traditional commercial bank such as JS Bank because money
lenders do not usually require farmers to set aside collateral (e.g. land)
Getting credit from a bank is not easy: more than half applications are rejected.
What is money?
Money = medium of exchange used to purchase goods or services (bank notes, deposits, crypto?)
What is Unit Of Account?
Money offers a standard measure for pricing goods and services (easy to compare)
What is Standard of Deferred Payment?
Money allows purchasing power to be transferred among people
even when payment takes place at a later date (cheque, credit card or trade finance).
What is Store of Value?
Money may preserve purchasing power over time, allowing individuals to save and defer consumption.
What is wealth?
Wealth = stock of assets owned (the value of such stock)
Example: buildings, land, machinery, debts owed to you,
capital goods – debts owed to others
What is income?
Income = The amount of money one receives over some
period of time (flow)
Example: salary, market earnings, investments (after paying
tax, it is called disposable income
Does wealth decline overtime?
Wealth declines over time due to depreciation/consumption
What is depreciation?
Reduction in the value of a stock of wealth over time (due to inflation or
market fluctuations).
What is net income?
The maximum amount that one could consume without running down wealth.
What is the formula for net income?
Net income = gross income – depreciation (assuming no tax)
What are earnings, savings and investment?
Earnings = Wages, salaries and other income from labour
Savings = Income not consumed, added to wealth via investment (bonds, shares)
Investment = Expenditure on capital goods (machinery, buildings).
What does borrowing and lending allow us to do?
Borrowing and lending allow us to rearrange our capacity to buy goods and services. There is a trade-off between consuming goods now and later, where
the opportunity cost of having more goods now is having fewer goods later
across time but constrains us to buy less later.
Time plays a crucial role in money, wealth, consumption, savings and investment
What is the interest rate?
Interest rate (r) = The price of bringing some buying power forward
in time. If r is 10% Julia can only borrow up to $91 today
Ø Repayment = principal + interest ($100 = $91 + $9)
The repayment is: Future value / (1+r) and r is the percentage of interest which is where the $91 comes from. And then the 9 comes from 100-91.
What is the Marginal Rate Of Transformation (MRT)?
MRT= Tradeoff between current and future consumption (feasible
frontier slope). The lender benefits from interest rate, if loan is repaid.
What does bringing consumption forward depend on?
Borrowing allows to bring consumption forward
How much consumption Julia will bring forward depends on:
1. Consumption smoothing
2. Impatience.
How would you smooth consumption?
Julia smoothes her consumption to avoid consuming a lot in one period and little in the other (e.g. eating a lot
today but starve tomorrow).
What is Diminishing marginal returns to consumption?
The value of an additional unit of consumption declines the
more consumption the individual has. So the interest rate causes loss of money over time.
How is slope of indifference curve and slope of feasible frontier linked?
Point F: Highest attainable indifference curve where
slope of the indifference curve = slope of feasible frontier
What is slope of indifference curve?
Slope of the indifference curve: the rate at which a consumer is willing to trade one good for another while
maintaining the same level of utility
What is Pure Impatience, Myopia and Prudence. (All linked)
Pure impatience is being impatient as a person and myopia is that people experience the present satisfaction aka consuming more now than later. And this happens due to prudence where people consume now as they might think they might not be around in the future.
Pure impatience = being impatient as a person
Myopia (short-sightedness): people experience the present satisfaction more strongly
than the same satisfaction later
Prudence: people know that they may not be around in the future so they want to
consume now
What is a discount rate?
Discount rate (ρ) = ”Rho” is a measure of a person’s impatience
How much an individual values an extra unit of consumption now over
an extra unit of consumption later
What are the alternate names for:
Slope of indifference curve
Marginal rate of substitution
Discount rate
Impatience
Slope of the indifference curve = slope of feasible frontier
Marginal rate of substitution = Marginal rate of transformation
1+ρ = 1+r
ρ = r
discount rate = interest rate
impatience = desire to smooth consumption
What does lending do?
Lending expands the saver’s feasible set, compared to
simply storing it for the future