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. Recall that the general demand function for the demand curves in Figure 2.2 is

Qd = 3,200 - 10P + 0.05M + 24 PR

Derive the demand function for D2 in Figure 2.2. Recall that for D2 income is 52,000 and the price of the related good is $200.



 the impact of the South African economy’s global integration on supply and demand mismatches in the labor market, consequently discussing what this entails for wage inequality levels within the country?


Apart from the mismatches of supply and demand in the labour market, what other factors
are largely contributing to inequality levels within the country?
As South Africa has a large contingent of unemployed and low skilled workers how do you
see the integration process affecting the mismatch between the demand and supply of
labour within the country?
Finally, in light of the unique socio-economic challenges facing the country, provide a few
recommendations on how the South African government can best manage the push towards
the fourth industrial revolution, so as to improve the employment of labour in the economy
whilst subsequently providing a more inclusive and equitable economic structure?

Justin has the utility function U = xy, with the marginal utilities MUx = y and MUy = x. The price of x is $2, the price of y is py, and his income is 40. When he maximizes utility subject to his budget constraint, he purchases 5 units of y.

(a)  What must be the price of y and the amount of x consumed? (1 marks).

(b)  Prove that this allocation follows the equi-marginal principle (2 marks).

(c)  What would be the new bundles of x, y if Px was $3 (2 marks).


1.    Given the utility function of the form: U (x, y) = 4x2 + 3xy + 6y2: maximize utility subject to the budget constraint: x + y = 56. Then find the utility maximizing level of output x and y?


why would someone who enjoys their job greatly rarely take a vacation



4) Suppose the demand and supply curves for eggs are given by the following equations:
Qd = 100-20P
Qs = 10 + 40P
a) Fill up the following:
Price Qd Qs
.50 _____ _____
1.00 _____ _____
1.50 _____ _____
2.00 _____ _____
2.50 _____ _____
b)Use the information in the table to find the equilibrium price and quantity
c) Graph the demand supply curves and identify the equilibrium price and quantity
3. Suppose the market demand for pizza is Qd = 300-20P and the market supply for pizza is given by Qs = 20P - 100 where P = price per pizza.
a) Graph the supply and demand schedules for pizza using P5 through P15 as the value of P.
b) In equilibrium, how many pizzas would be sold and at what price?
c) What would happen if suppliers set the price for pizza at 15? Explain the market adjustment process.
d) Suppose the price of hamburgers a substitute for pizza doubles. This leads to a doubling of the demand for pizza (at each price consumers demand twice as much pizza as before). Write the equation for the market demand for pizza.
e) Find the new equilibrium price and quantity of pizza
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