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Suppose that a seller decreases price for his/her good by 5 percent. Discuss how total revenue
changes when:
i.∈d=0.5
ii.∈d=1
iii.∈d=1.5
Suppose a perfectly competitive firm with total cost function given as:
TC= 400+20Q-2Q2+2
3Q
3.
A. Find profit maximizing level of output and the maximum profit if the average revenue
equals $180.
B. Calculate the shutdown level of output and price.
Suppose a perfectly competitive firm with total cost function given as:
TC= 400+20Q-2Q2+2
3Q
3.
A. Find profit maximizing level of output and the maximum profit if the average revenue
equals $180.
B. Calculate the shutdown level of output and price.
Suppose a perfectly competitive firm with total cost function given as:
TC= 400+20Q-2Q2+2
3Q
3.
A. Find profit maximizing level of output and the maximum profit if the average revenue
equals $180.
B. Calculate the shutdown level of output and price.

Which of the following statements is/are correct? A. Taxes can be levied on only two bases: income and consumption. B. The most important tax source in South Africa in 2014/15 was personal income tax. C. When the average tax rate increases as the income tax base increases, the tax rate structure is progressive. D. Direct taxes such as a tax on fuel cannot be shifted that easily.


What is the effect on demand for labour and supply for labour,if government impose a minimum wage below the market wage
Consider an economy with the following aggregate production function: Y = 3K1/3(AL)2/3
Capital grows through investment but also decays due to wear and tear at a constant rate δ per period. Assume that A is growing at the exogenous rate g, that L is growing at the exogenous rate n, and that households save a constant proportion s of their income.

Calculate the saving rate needed to reach the golden rule level of capital per effective worker.

If Z = f(x, y) is a multivariable function then state the necessary and sufficient conditions

of Maxima and Minima.


Suppose that the economy starts at the natural level of output and that due to reforms in job protection laws in favor of workers, the AS shifts from its original position. a. What is the short-run effect on output and prices? b. What happens to output and prices over time (i.e. in the medium run)?


Calculate the saving rate needed to reach the golden rule level of capital per effective worker.
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