Answer: 15000; 3750
Explanation:
From the question,
Q = 660 – 12P
MC = 5
The consumer surplus in a perfectly competitive market will be:
P = MC
Therefore, P = 5
Q = 660 - 12P = 660 - 12(5) = 660 - 60 = 600
Consumer surplus = 1/2 × (55 - 5) (600)
= 1/2 × 50 × 600
= 15,000
For monopoly, MR = MC
Total Revenue = P × Q
Since Q= 660 - 12P
P = (660 - Q)/12
TR = P × Q
= (660 - Q)/12 × Q
= (660Q- Q²)/12 × Q
MR = (660 - 2Q)/12
MR = MC
(660 - 2Q)/12 = 5
(660 - 2Q) = 5 × 12
660 - 2Q = 60
2Q = 660 - 60
2Q = 600
Q = 600/2
Q= 300
Since P =(660 - Q)/12
= (660 - 300)/12
= 360/12
= 30
Consumer surplus = 1/2 × (55 - 30) (30)
= 1/2 × 25 × 300
= 3750
Therefore, the answer is 15000; 3750
Answer:
A.rose making the interest rate fall
Explanation:
According to the liquidity preference theory developed by John Keynes, if the money supply rises, price level also rises, interest rate falls. If interest rate falls, the price of bond rises which would increase capital gains. People would prefer to hold bonds instead of money, therefore, investment spending would rise.
The liquidity preference theory states that we hold money for transactive, speculative and precautionary motives.
