Figure: The Effect of a Higher Interest Rate on Julia's Optimal Choice

Diagram Showing the Effect of an Interest Rate Rise on Julia's Frontier, in Comparison to Marco's

An individual has no income today but is guaranteed to receive $110 in the future. This person can borrow money against their future income to be able to consume goods and services today. If the market interest rate for borrowing increases, which statement best describes the change in this individual's set of possible consumption combinations for today and the future?

Impact of Interest Rate Changes on Borrowing Capacity

Consider an individual who has no income today but is guaranteed to receive $100 in the future. If the interest rate for borrowing against this future income increases, their set of possible consumption choices shrinks. This is because the maximum amount they could consume today decreases, and the maximum amount they could consume in the future also decreases.

Consider an individual who has no income today but is guaranteed to receive $100 in the future. If the interest rate for borrowing against this future income increases, their set of possible consumption choices shrinks. This is because the maximum amount they could consume today decreases, and the maximum amount they could consume in the future also decreases.

An individual's entire economic endowment consists of income they will receive in the future; they have no income today. To consume anything today, they must borrow. On a graph where the horizontal axis represents 'consumption today' and the vertical axis represents 'consumption in the future', how does an increase in the borrowing interest rate affect this individual's feasible frontier?

Calculating the Impact of Interest Rate Changes on Present Consumption

Impact of Interest Rate Changes on Consumption Possibilities

An individual's consumption possibilities are represented by a line on a graph. The horizontal axis measures 'Consumption Today' and the vertical axis measures 'Consumption in the Future'. Initially, the individual has no income today and is guaranteed $100 in the future. The line connects the point (0, 100) on the vertical axis to the point (90, 0) on the horizontal axis. Later, the line changes, now connecting (0, 100) to (80, 0). Which of the following events best explains this change?

An individual has an endowment of $0 today and is guaranteed to receive $100 in the future. On a graph with 'Consumption Today' on the horizontal axis and 'Consumption in the Future' on the vertical axis, their feasible frontier shows all possible consumption combinations. Match each economic event to its effect on this individual's feasible frontier.

An individual's entire economic resource is a guaranteed income of $100 to be received in one year, with no income today. This person can borrow against this future income. If the market interest rate for borrowing increases, why does their feasible frontier—representing all possible combinations of consumption today and consumption in one year—pivot inward rather than shifting inward in a parallel fashion?