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.
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)?