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Assumption of No Inflation in the Intertemporal Choice Model
For the purpose of simplifying the intertemporal choice model, it is assumed that there is no inflation. Under this assumption, the distinction between the real interest rate and the nominal interest rate is removed, and they are considered to be identical.
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Introduction to Microeconomics Course
The Economy 2.0 Microeconomics @ CORE Econ
Ch.9 Lenders and borrowers and differences in wealth - The Economy 2.0 Microeconomics @ CORE Econ
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Assumption of No Inflation in the Intertemporal Choice Model
An individual takes out a one-year loan for $1,000 from a bank that advertises a 7% annual interest rate. At the end of the year, the individual repays the bank $1,070. During that same year, the average price level of goods and services in the economy increased by 3%. Which statement best dissects the components of this financial arrangement?
Identifying the Nominal Interest Rate in a Loan Agreement
Calculating Purchasing Power Change
If you deposit money into a savings account that pays a 2% annual interest rate, and the economy experiences a 3% inflation rate over the same year, your purchasing power will have increased at the end of the year.
When a bank advertises a specific interest rate for a savings account, this publicly stated rate, which does not account for the potential erosion of purchasing power due to a general rise in prices, is referred to as the ______ interest rate.
Match each term to the description that best defines its economic meaning.
Evaluating the Usefulness of the Nominal Interest Rate
A saver is considering depositing $100 into a new savings account. Arrange the following steps in the logical order they would follow to determine the change in their actual purchasing power after one year.
A commercial bank advertises a savings account with a '5% Annual Percentage Rate (APR)'. If a customer deposits $1,000 into this account and there are no other fees or transactions, what does this 5% rate directly determine?
Calculating Loan Repayment Amount
Real Interest Rate (r)
Policy Interest Rate
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A student is using a standard two-period consumption-savings model. A key feature of this model is the simplifying assumption that the general level of prices for all goods and services remains constant from one period to the next. If a bank offers a savings account with an annual interest rate of 4%, what is the effective increase in the purchasing power of the saved funds after one year, according to the assumptions of this specific model?
Rationale for a Simplifying Assumption in Economic Models
In a simplified economic model of consumption over two periods where the general price level is assumed to remain unchanged, if a financial institution offers a 3% annual rate on savings, the actual growth in a consumer's purchasing power from those savings will be exactly 3%.
Evaluating a Model's Core Assumption
Applying a Simplified Savings Model
Within an economic model that simplifies decision-making over time by assuming that the general price level remains constant, the interest rate quoted by a financial institution is effectively the same as the true increase in purchasing power. This quoted rate is known as the ________ interest rate.
An economic model is used to understand how a person makes choices about spending and saving over time. Match each scenario described below with the correct relationship between a bank's quoted interest rate and the actual growth in a saver's purchasing power.
An economist is constructing a basic two-period model to analyze a consumer's savings decisions. A foundational assumption of this model is that the overall price level of goods and services does not change between the first and second periods. If a bank in this model's economy offers a 5% interest rate on savings, how does this rate relate to the actual change in the consumer's ability to purchase goods in the second period with their saved money?
An economic model designed to study a person's saving decisions over two periods is built on the key assumption that the general price level of goods remains constant. In this model, if a person saves $100 with a 5% annual interest rate, their savings grow to $105, allowing them to purchase exactly 5% more goods in the second period.
Now, suppose this core assumption is violated, and the general price level of all goods actually increases by 2% during the year. How does this price increase impact the purchasing power of the person's $105?
Consequences of a Simplifying Assumption