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# Microeconomics (question + 10 tasks)

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**04.07.2013**

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# Description

1.Reklama and promotion of goods on the market with monopolistic competition and oligopoly 3

Objective 1.

1. The value of the average buyer demand for meat at different prices, are presented in the table below:

P, rub. / Kg 5 6 7 8

QD, kg 4 3 2 1

Meat is considered infinitely divisible commodity.

a) Identify the analytical and graphical views of the function of demand for meat.

b) How much meat will take the average buyer from the market by its free distribution?

c) At what minimum price buyers will go without meat?

d) Identify the analytical and graphical view of the inverse function of demand for meat.

2. Farmer Ivanov has been producing meat and delivers it to the market. Displacement it offers at different prices represented in the table.

P, rub. / Kg 1 3 5 10 August

QS, kg 1 4 7 11.5 14.5

a) Identify the analytical and graphical views offer features for meat.

b) Identify the analytical and graphical views of an inverse function offers meat.

c) How much meat is ready to sacrifice the farmer Ivanov?

3. Determine the equilibrium values \u200b\u200bof prices and sales volumes of meat.

4. For these tasks to determine the coefficient 1 spot and arc price elasticity of demand function and plot the price depends on the price elasticity coefficient point and module.

5. For these tasks to determine the coefficient 2 spot and arc price elasticity of the supply function and plot the dependence of the coefficient of elasticity of the price point.

Objective 2.

1. Three students with 50 rubles. We went to buy meat. The first student had no intention to buy 2 kg of meat, if the price is less than 20 rubles. / Kg and 1 kg, if the price is more than 20 rubles. / Kg. The second student intended to buy 1 kg of meat, if the price is less than 25 rubles. / Kg and 0.5 kg, if the price is more than 25 rubles. / Kg. The third student was going to buy 2 kg of meat, if the price for it will be less than 25 rubles. / Kg and 1 kg, if the price exceeds 25 rub. / Kg. Unless one of the quantity of meat a student can not buy, he refuses to buy.

a) Identify the analytical and graphical views of the function of demand for meat for each student and the market demand function.

b) At what price to buy the meat of his students i, i = 0, 1, 2, 3?

Task 3.

Supply and demand are determined by the tasks 1 and 2 of the control work. The state imposes a tax - 1 rub. from each kg of meat sold. What part of the tax paid by the seller, and what part - the buyer?

b) The state pays a subsidy of 1 rub. per kg of meat sold. Who gets a larger share of the allocated funds - the seller or the buyer?

Task 4.

The kit includes two consumer product: butter and cheese. Their total value is characterized by the following data:

The amount of oil Kg 1 2 3 4 5 6

The total usable oil 12 22 30 36 41 45

Quantity of cheese, kg 1 2 3 4 5 6

Total utility cheese August 13 17 20 22 23

a) 1 kg of oil costs 4 rubles., 1 kg of cheese - 3 rubles. The total income of the consumer is 36 rubles. What quantity of butter and cheese rational consumers will buy?

b) 1 kg of oil is worth 6 rubles., 1 kg of cheese - 3 rubles. The total income of the consumer is 36 rubles. What quantity of butter and cheese rational consumers will buy?

c) 1 kg of oil costs 8 rubles., 1 kg of cheese - 3 rubles. The total income of the consumer is 36 rubles. What quantity of butter and cheese rational consumers will buy?

Based on these results build a line of "price - consumption» (W).

Task 5.

The following table shows the production and the marginal cost of a perfectly competitive firm ...

Using these data, determine the method of marginal revenue:

1. Will the company make products and what is its scope - maximizing profit and minimizing losses in the short term (a) and long (b) the period, if the price per unit will be: 80

# Additional information

Task 6.

On the market are functioning two firms producing the same goods N. It is known that the total demand for this product is described by the dependence of P = 11 - Q, where Q - the total supply of both firms. Assume that each firm produces a constant average and marginal costs equal to three units.

Define and execute:

1. What is the volume of production is best for companies, which they appoint the price, which will have a gross income of the company in a competitive environment?

2. What is the volume of production and the price of the company will choose the subject of collusion?

3. Draw the graphs of reaction of firms in the face of competition and subject to collusion.

Target 7.

Based on the data in the table, calculate the marginal net return on investment of two machines offered by the market and determine which machine will be better for the company in the lending rate r = 24%, and in this case what is the ultimate net profit. The proposed sales price - 500 rubles.

The value of investment funds, rub. The marginal product of capital units. Maximum return on investment, rub. Limit operational costs, rubles. The maximum net income, rubles. The marginal rate of return on investment,% net return on investment limit% limit profit rubles.

The machine tool 1 3000 16 4100

Machine 22 2 5000 4800

Target 8.

Suppose that the company intends to buy a new computer system, using it for three years and get after this period net income of 6,000 rubles .; which in this case is distributed over the years as follows: in the first year - 1500 rubles .; in the second year - 2500 rubles .; the third - 2000 rubles. Judgment interest rate - 10%.

Using the procedure of discounting future net income, determine whether it was appropriate for the company under the above conditions to purchase a computer system at the price: a) 5100 rubles; b) 4500 rub .; c) 4934 rubles.

Target 9.

Fill in the table of labor demand and supply of labor for firms to hire workers and sells its products under the conditions of perfect competition.

Unit labor QL number of employees) of total product

(TP), pcs. Marginal product

(MPL), pcs. The unit price of the product

(P), rub. The wage rate

(W), rub. Total costs for labor

(TRCL), rub. The marginal cost of labor (MRCL) rubles. Total revenue (TR), rub. The limit profitability of labor (MRPL), rub.

0 0 5 0

1 17 May 50

February 31 5100

3 43 5150

4 53 5200

5 60 5 250

6 65 5300

1. Present graphically supply curves and the marginal cost of labor for the firm.

2. Present graphically the labor demand curve of firms in the same figure.

3. What will be the equilibrium wage rate and employment for the firm.

4. If the market rate rises to 60 rub .; how to change the level of employment, output, profit margins?

Target 10.

Table 1 shows the volumes of individual consumer demand four A, B, C, D for a particular product.

Table 1

Price 9 8 7 6 5 4 3 2

A volume of demand 0 0 0 1 2 3 4 5

The volume of demand B 1 2 3 4 5 6 7 8

The volume of demand 0 0 1 2 3 4 5 6

The volume of demand D 0 1 2 3 4 5 6 7

1. Determine the volume of the market demand for the product, if it is a pure private good.

2. Determine the value of a collective demand for the product, if it is a pure public good.

3. Locate the effective release of a pure public good, if his proposal is given in Table 2.

Table 2

Price 23 20 17 14 11 8 5 2

The volume of supply 8 7 6 5 4 3 2 1

4. What would be the volume of output of the product, if it was made in the private sector?

References

References 37