The Rationale for Simplifying Assumptions in Economic Models
In many foundational economic models of borrowing, it is assumed that an individual's ability to secure a loan is independent of their current wealth. Explain the primary reason why economists make this simplification, even though it does not perfectly reflect reality.
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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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Model Prediction vs. Real-World Borrowing
A basic economic model predicts that a rational individual with high expected future earnings but no current savings will choose to borrow a large sum for a valuable investment today. However, in practice, this individual is often unable to secure the loan. What is the most likely reason for this discrepancy between the model's prediction and the real-world outcome?
The assumption that individuals can borrow without initial wealth makes basic lending models entirely useless for understanding any real-world borrowing behavior.
Evaluating a Core Assumption in Borrowing Models
The Rationale for Simplifying Assumptions in Economic Models
In a standard intertemporal choice model, an individual has no wealth today but is guaranteed a large income in the future. If we introduce the real-world constraint that lenders often require collateral (initial wealth) to issue a loan, which component of the individual's decision-making model is most directly and immediately restricted?
Critiquing a Simple Lending Model
An economic advisor uses a standard model to argue that a new government program offering free business plan workshops will significantly boost new business creation. The model assumes individuals can borrow against their expected future profits. A critic argues the program will have little effect on aspiring entrepreneurs from low-wealth backgrounds. What is the most likely foundation for the critic's argument?
Evaluating Entrepreneurship Policies
The assumption that individuals can borrow without initial wealth makes basic lending models entirely useless for understanding any real-world borrowing behavior.