Explain the difference between saving and investment as defined by a macroeconomist.  c. Which of the following

Math Econ Question 4 Please help to solve and explain into detail

Suppose that the government puts out a tax incentive that encourage people to save more money. Assume that this does not lead to a change in Y* or G, but does lead to a decrease in Consumption. 7. What would we expect to happen to interest rates? Explain your answer. 8. Would this change in interest rates increase or decrease the present value (PV) of the investment that this question is considering? Explain your answer.

Suppose real GDP is $5,136 billion, taxes collected by the government are $535 billion, government spending is $656 billion, and consumption spending is $3,893 billion. What is the value of private saving?

Assume an economy with 1000 consumers. Each consumer has income in the current period of 50 units and future income of 60 units, and pays a lump-sum tax of 10 in the current period and 20 in the future period. The market real interest rate is 8%. Of the 1000 consumers, 500 consume 60 units in the future, while 500 consume 20 units in the future. a) Determine each consumer's current consumption and current saving. b) Determine aggregate private saving, aggregate consumption in each period, government spending in the current and future periods, the current-period government deficit, of the quantity of debt issued by the government in the current period. c) Suppose that current taxes increase to 15 for each consumer. Repeat parts (a) and (b) and explain your results.

c. Which of the following situations in c (i) & c (ii) represent investment? Saving? Explain(i) Your family takes out a mortgage and buys a new house.(ii) You use your paycheque to buy stock in Sagicor Financial Services.

Math Econ Question 5 Please help to solve this. Thank you

K Consider the graph to answer the following questions: a. The shift from S, to S₂ represents in the supply of loanable funds. b. With the shift in supply, the equilibrium quantity of loanable funds c. With the change in the equilibrium quantity of loanable funds, the quantity of saving and the quantity of investment ▼ A CI Real Interest Rate Market for Loanable Funds L₂ L1 Loanable Funds ($ per year) S₁ Q

a. If national saving of a closed economy equals$100,000, net taxes equal$125,000,GDPdeflator is 175 and government expenditure equals$45,000, what is private saving?

Define Purchase of Investment.