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1. For each of the following two-variable relationships: i)the consumption funct

ID: 1216684 • Letter: 1

Question

1. For each of the following two-variable relationships: i)the consumption function ii)the savings function iii)the investment demand function iv) the multiplier, indicate, a. the dependent variable b.the independent variable c. the nature of the relationship (+ or -) 2. Describe using a plus for an increase (+), a minus for a decrease (-), and an equal sign for remains the same (=) how each of the following events will affect the consumption function, savings function and investment function. Events: a. A large increase in the value of real estate, including private houses. b. A decline in the real interest rate. c. A sharp, sustained decline in stock prices. d. An increase in the rate of population growth. e.The development of a cheaper method of manufacturing computer chips. f. A sizable increase in the retirement age for collecting Social Security benefits.

Explanation / Answer

Answer 1

MPS -

MPC +

Event a   A large increase in the value of real estate, including private houses.

Consumption function - +

as value of houses increases MPC increases

savings function -

more of savings will go in buying houses,thus MPS will fall

investment function -

investments will fall as ROI increases with more demand

b. A decline in the real interest rate

consumption function +

consumption increases as ROI falls

savings function -

savings positively related so will fall with fall in ROI

investment +

investments will increase

c. A sharp, sustained decline in stock prices.

consumption ,saving & investment =

d. An increase in the rate of population growth.

consumption function +

as population increases so consumption in economy increases

savings function -

investment +

e.The development of a cheaper method of manufacturing computer chips

consumption & saving =

investment +

f. A sizable increase in the retirement age for collecting Social Security benefits

consumption & saving & investment =

dependent variable independent variable nature of relation consumption function consumption income + savings function savings income + investment demand function investment ROI - Multiplier K MPS and MPC

MPS -

MPC +