Question

1. Функция спроса задана как Qd = 60-5P. Функция предложения задана как Qs = 15Р - 40 Какая ситуация будет на рынке и чему будет равен дефицит или излишек, если цена продукции будет равна 7 руб. 2. Доход мистера Z увеличился на 3%, а величина спроса при той же цене выросла на 9%. Определить эластичность спроса по доходу.

Answer 1

Ответ:

1) излишек в размере 40 ед., цена выше равновесной, 2) 3

Объяснение:

1)Спрос=60-5*7=25

Предложение=15*7-40=65

65-25=40, образуется излишек в размере 40ед., цена выше равновесной.

2)9:3=3

Answer 2

Situation on the Market and the Deficit or Surplus

To determine the situation on the market and whether there will be a deficit or surplus, we need to compare the quantity demanded (Qd) and the quantity supplied (Qs) at a given price.

The demand function is given as Qd = 60 - 5P, where P represents the price of the product. The supply function is given as Qs = 15P - 40.

To find the equilibrium price, we need to set Qd equal to Qs and solve for P: 60 - 5P = 15P - 40

Simplifying the equation, we get: 20P = 100 P = 5

Therefore, the equilibrium price is 5 rubles.

To determine whether there will be a deficit or surplus, we compare the quantity demanded and the quantity supplied at the equilibrium price.

At P = 5, the quantity demanded is: Qd = 60 - 5P = 60 - 5(5) = 60 - 25 = 35

And the quantity supplied is: Qs = 15P - 40 = 15(5) - 40 = 75 - 40 = 35

Since the quantity demanded (35) is equal to the quantity supplied (35) at the equilibrium price of 5 rubles, there will be neither a deficit nor a surplus. The market will be in equilibrium.

Elasticity of Demand

To determine the elasticity of demand with respect to income, we need to calculate the percentage change in quantity demanded (Qd) divided by the percentage change in income.

The formula for elasticity of demand with respect to income is: Elasticity of demand = (% change in Qd) / (% change in income)

Given that Mr. Z's income increased by 3% and the quantity demanded increased by 9% at the same price, we can calculate the elasticity of demand as follows:

% change in Qd = (New Qd - Old Qd) / Old Qd * 100 % change in Qd = (109 - 100) / 100 * 100 % change in Qd = 9%

% change in income = 3%

Elasticity of demand = (% change in Qd) / (% change in income) Elasticity of demand = 9% / 3% Elasticity of demand = 3

Therefore, the elasticity of demand with respect to income is 3.