The equilibrium ndition for two substitute commodities are give 18Px-Py 100 30Py-2Px = 75 Find the equilibrium prices of the commodities using a) Matrix inversion b) Crammer's rule c) Substitution method

Given demand and supply equation as follows: Qd = 100 - 5P Qs = 20 + 5P a) find the equilibrium Price. (2 Marks) b) find the equilibrium quantity (2 Marks) c) if the market price is $10, is there a shortages or surplus (1 Mark) d) at price $10 what is the amount of shortages or surplus (1 Mark) show your calculations В I !

In a study of the demand for automobiles in Canada, economists Blomqvist and Hassel distinguished between large and small cars and estimated the price and cross- price elasticities as well as the effects of the price of gasoline on the demands for small and large cars. Their results were as follows: a. C. New large cars New small cars d. Own price elasticity 1.26 2.30 Cross price elasticity 0.86 1.73 Elasticity with respect to gasoline price Note: The cross-price elasticities show that the demand for new small cars is more responsive to changes in the price of new large cars than the demand for new large cars is to changes in the price of new small cars. Do the cross-price elasticities have the expected sign? Briefly explain. b. If the price of new small cars went up by, say, 5 percent, by what percentage would new small car purchases change? {Note: In your answer to this and all of the remaining parts of this question, please indicate whether the change is an increase or a decrease.}…

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When the price of beef is $ 4 per kg, quantity demanded is 500 grams. but when the price changes to $3.92 then quantity demanded is 530 grams. calculate the price elassticity demand?

The imosition of a price celing on market will resut in

Derive a formula of elasticity of supply with respect to changes in prices.

A particular commodity has a price-demand equation given by p = √18,444 - 417x, where x is the amount in pounds of the commodity demanded when the price is p dollars per pound. (a) Find consumers' surplus if the equilibrium quantity is 40 pounds. (Round your answer to the nearest cent if necessary.) (b) Find consumers' surplus if the equilibrium price is 17 dollars. (Round your answer to the nearest cent if necessary.) $

QUESTION 7 The demand for rubber erasers consists of two components. The first component is the demand for rubber erasers by art students. This demand is given by QA = 19,500 - 325P. The second component is the demand for rubber erasers by all others. This demand is given by Qo = 32,000 - 2,000P. (a) What is the total quantity demanded of rubber erasers if the price of an eraser is: (i) $10 (ii) $15 (iii) $20 (iv) $30 (v) $70 (b) Assume that the supply of rubber erasers is given by Qs = 14,000+ 175P. (i) Find the equilibrium price and the equilibrium quantity. (ii) Calculate the total consumer surplus. [Hint: It may be easier if you calculate the consumer surplus for art students and the consumer surplus for all others separately, and then add them up.] (c) Assume that the supply of rubber erasers is given by Qs = 8,390 + 180P. Find the equilibrium price and the equilibrium quantity. 10 (DC) EN510

Assume that the market demand for a product is represented by the equation P=50- and its market supply by the equation P = 10 + 2Qs where Qd and are quantity demanded and quantity supplied, respectively, and P is the market price. Determine the equilibrium market price and quantity of the product. Clearly show your steps and calculations .