Applying the Constrained Choice Framework to Intertemporal Decisions
The standard economic analysis of constrained choice, which uses tools like feasible sets and indifference curves, can be directly applied to decisions over time. In this application, the choice is framed as a trade-off between two distinct goods: 'consumption now' and 'consumption in the future'.
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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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Simplifying Assumption in Lending Models: Guaranteed Repayment
Simplifying Assumption in Lending Models: Exogenous Interest Rate
Simplifying Assumption in Lending Models: Access to Credit without Wealth
Consider an individual's decision between 'consumption now' and 'consumption later'. Their initial situation before any financial transaction is represented by an endowment point. They can choose any combination of consumption now and later along a downward-sloping feasible frontier that passes through this endowment point. If this individual's optimal choice results in a level of 'consumption now' that is greater than their initial endowment for 'consumption now', which of the following statements must be true?
Comparing Intertemporal Choices
Analyzing the Impact of an Interest Rate Change on a Borrower
An individual is deciding how much to consume now versus in the future. In the graphical model representing this choice, the slope of the line representing all possible consumption combinations they can achieve through borrowing or lending is determined by their personal degree of patience.
An individual is deciding how to allocate their consumption between the present and the future. Their options are represented by a downward-sloping feasible frontier, and their preferences are represented by indifference curves. At their current consumption plan, which is a point on the feasible frontier, they are willing to give up 1.05 units of future consumption to gain 1 unit of present consumption. The market allows them to exchange 1 unit of present consumption for 1.10 units of future consumption by saving. To reach a higher level of satisfaction, what should this individual do?
The Graphical Determination of Borrowing and Lending
An individual makes a choice between consumption today and consumption in the future, constrained by their initial resources and the market interest rate. Match each economic description below to the corresponding feature of the graphical model that represents this choice.
Inferring Preferences from Intertemporal Choice
Comparing Borrower and Saver Preferences
Assessing the Potential for a Loan
Interest Rate as the Price of Present Consumption
Applying the Constrained Choice Framework to Intertemporal Decisions
Figure 9.3: Comparing Julia's Feasible Frontiers at 10% and 78% Interest Rates
Simplifying Assumption in Lending Models: Borrowing without Initial Wealth
How Real Credit Markets Deviate from Simplified Models
Slope as a Positive Value in Economic Trade-offs
Real Interest Rate (r)
Borrowing to Shift Consumption from the Future to the Present
Activity: Constructing Julia's Feasible Frontier
Consumption Smoothing
Economic Definition of Impatience
Optimal Intertemporal Choice as Tangency Point
Simplifying Assumption: Zero Inflation
Assumption of Constant Impatience in the Intertemporal Choice Model
MRT as the Rate of Transforming Future Consumption to Present Consumption
An individual initially chooses to be a saver, meaning they consume less than their income in the present to consume more in the future. If the interest rate increases, what is the definitive effect on their situation, assuming consumption in both periods is a normal good?
Consumption Decision Over Time
Optimal Intertemporal Consumption Choice
Consider an individual who is a borrower, choosing how to allocate consumption between a present period and a future period. If the interest rate they face for borrowing decreases, this individual will unambiguously be made better off.
Arrange the following steps in the correct order to determine an individual's optimal intertemporal consumption choice within the intertemporal choice model.
Match each component of the standard intertemporal choice graph with its correct economic description. The graph's horizontal axis represents 'Consumption Now' and the vertical axis represents 'Consumption Later'.
Analysis of Intertemporal Preferences and Constraints
In a model of choice between consumption now and consumption later, the feasible frontier illustrates all possible combinations of consumption an individual can afford. If the interest rate for borrowing and saving is 8%, the opportunity cost of consuming one additional dollar today is giving up $____ of consumption in the future.
Calculating Maximum Present Consumption
Consider an individual whose income is the same in the present period as it is in the future period. This combination of incomes, where they neither borrow nor lend, is their 'endowment point'. The market allows them to borrow or save at a given interest rate, which defines their feasible consumption possibilities. If this individual's optimal choice involves consuming more in the present than their current income, what must be true about their preferences when evaluated at their endowment point?
Opportunity Cost of Present Consumption
Endowment in Intertemporal Choice
Applying the Constrained Choice Framework to Intertemporal Decisions
Learn After
Savings Decisions and Interest Rate Changes
An individual has an income stream that allows them to choose a combination of consumption today and consumption in the future. Initially, they choose to consume less than their current income, saving the remainder. If the interest rate on savings increases, which of the following statements most accurately describes the outcome?
An individual makes a choice between 'consumption today' (horizontal axis) and 'consumption in the future' (vertical axis). Their initial budget constraint is represented by line BL1, and they choose point A on indifference curve I1. At point A, their consumption today is less than their income today. The interest rate then changes, causing the budget constraint to pivot to a new, steeper line, BL2. The individual's new optimal choice is point B, which lies on a higher indifference curve, I2. Based on this information, which of the following conclusions is correct?
An individual makes a choice between 'consumption today' (horizontal axis) and 'consumption in the future' (vertical axis). Their initial budget constraint is represented by line BL1, and they choose point A on indifference curve I1. At point A, their consumption today is less than their income today. The interest rate then changes, causing the budget constraint to pivot to a new, steeper line, BL2. The individual's new optimal choice is point B, which lies on a higher indifference curve, I2. Based on this information, which of the following conclusions is correct?
Analysis of a Borrower's Response to Interest Rate Changes
Impact of Future Income Expectations on Current Consumption
In a two-period model of choice, an individual initially chooses to consume more than their current income. A subsequent decrease in the interest rate will unambiguously cause this individual to increase their current consumption.
Global Connections in the Textile Industry
In the model of choice over time, where an individual decides between 'consumption now' and 'consumption in the future', match each graphical component to its correct economic interpretation.
Decomposing the Effect of an Interest Rate Change for a Saver
Comparing Intertemporal Choices Based on Time Preferences