Simplifying Assumption: Security of Stored Wealth
The analysis of Marco's saving decision operates on the simplifying assumption that his stored wealth is secure. This means the model presumes his $100 will not be stolen, ensuring that funds saved for the future will be available when the time comes.
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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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Simplifying Assumption: Security of Stored Wealth
Evaluating a Financial Model's Prediction
An economic model is used to project the outcome of a financial decision. The model concludes that if an individual lends $1,000 to a new business venture at a 10% annual interest rate, the lender is guaranteed to have exactly $1,100 at the end of the year. For this conclusion to be correct, what crucial simplifying assumption must the model be making?
A financial model that assumes a borrower will always repay a loan in full is more likely to produce an accurate forecast for a government-issued bond than for a loan to a new, unproven startup company.
Consequences of a Simplified Economic Model
The Utility of Simplified Economic Models
An economist is building a simple model to analyze an individual's decisions about saving, borrowing, and investing over time. To make the model work, several real-world uncertainties must be ignored. Match each real-world scenario below with the specific simplifying assumption the model would be making to disregard that scenario.
When a financial model assumes a 100% certainty of loan repayment, its calculation of the lender's final profit is effectively treating the interest rate as a pure measure of the time value of money, completely excluding any premium for ________.
An individual is using a basic financial model to decide how to lend out their savings for one year. The model operates on the core assumption that any loan will be repaid in full with a known, guaranteed interest rate. Arrange the following steps in the logical order the individual would follow to make a decision according to this simplified model.
Investment Strategy Critique
An economic model is designed to analyze an individual's saving and lending decisions. A core feature of this model is that it does not account for any possibility of default on loans or any variation in the returns from an investment. Which of the following financial situations would be most accurately represented by this model?
Learn After
An economic model is used to analyze an individual's decision to either consume their income today or save it for the future. The model operates under the initial assumption that any wealth saved is completely secure and will not be lost. If this assumption is altered to introduce a significant risk that any stored wealth might be stolen, how would this change most likely affect the individual's decision-making process within the model?
Analyzing Savings Behavior in an Unstable Environment
In an economic model built to analyze an individual's decision to save versus consume, the primary reason for assuming that stored wealth is secure from theft is to ensure the model focuses solely on the trade-off over time, without the complicating factor of potential loss.
The Role of Simplifying Assumptions in Economic Models
Evaluating Simplifying Assumptions in Savings Models
Economic models often use simplifying assumptions to isolate specific variables for analysis. Match each simplifying assumption below with the real-world complexity it is intended to remove from the model.
The Purpose of Simplifying Assumptions in Savings Models
An economic model is designed to predict an individual's saving habits. The model concludes that, given a certain income and interest rate, the individual will save $20. A key simplifying assumption made during the model's construction is that any wealth saved is completely secure and cannot be lost or stolen. If you were to apply this model to a real-world situation where there is a noticeable risk of theft, how should you interpret the model's prediction?
In economic models that analyze an individual's choice between spending and saving, the premise that any money saved will be safe from theft is known as a ________ assumption. This is used to remove external variables and focus purely on the trade-offs of consumption over time.