Unit: Economics
17 Questionsand
Qb=24−p2where p represents price and Q is quantity
Required:
(i) Which of the two functions represents a demand curve and supply curve. Cite relevant economic reasons.
(ii) Determine the equilibrium price and quantity in the market
(iii) Explain, with the aid of a diagram, the effect on the demand and supply functions indicated in (a) above of
a simultaneous decrease in cost of inputs and a decrease in the price of a substitute good.
The utility total function and other relevant variables related to a consumer are given as follows:
U=20X−4Z2+40Z−X2
Income Y = Kshs. 48
Price of X (Px) = Kshs.2
Price of Z(Pz) = Kshs.4
Required:
(i) Determine the equilibrium quantities of commodities x and z using the cardinalist approach to consumer
behavior.
(ii) Outline the axioms of the cadinalist approach to consumer behavior.
government intervention:
The commodity market Consumption function:
C = 50 + 2/5Y
Investment function:
I = 790 – 21r
The Money Market:
Precautionary and Transactions demand for money MDT = 1/6 Y
Speculative demand for money MDS = 1200 -18r
Money supply MS = 1250
Required:
(i) Determine the equilibrium levels of income and interest rate for this economy.
(ii) Using a well labeled diagram, illustrate the equilibrium condition in part (i) above.
| Total output | Intermediate purchases | |
| Agriculture | 130 | 110 |
| Manufacturing | 170 | 145 |
| Services | 150 | 125 |
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