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Question 1:
a) Explain what is a VAR giving an example both in the form of an equation and matrix. Discuss its benefits and limitations.
b) How can we estimate a VAR involving equations having a contemporaneous feedback term?
c) Distinguish between variance decomposition and impulse response functions.
Question 2:
(a) What are the two types of non-stationarity that exist and show how one of them can be made stationary?
(b) How do we test for a unit root?
(c) What does it mean when two variables are cointegrated?
(d) Using the Engle-Granger approach show how parameters can be estimated in cointegrated systems.
A shok question #Minimum 100 words accepted# when did the most recent shock to the crude oil market occur
For a multiple regression with three explanatory variables the value of R 2 is 0.75. Indicate whether every of the following statements is true or false and give brief reasons fo
a) Explain what is calculated by a correlation coefficient. b) Why do economists commonly find regression a more useful tool than correlation? c) In a sample of 102 men the corre
The following multiple regression results are part of a study of the demand for chicken in the USA. Q Calculates the quantity of chicken purchased per annum. PC and PB are the pric
Over the next two years, Susan's income will be $33,000 in the first year and $33,000 in the second year. She can both borrow and lend money at the 10% of annual interest. (a) W
cost function; expenditure=B1+B2N+B3N+U EXP=17099+1.60N-1.2Q regration sum of square=8 qutinos 1 explain inter prtation
Choose a share from a market such as LSE, NYSE, NASDAQ, etc. [Data sources could be Datastream, Google Finance or others]. Prepare a report which involves the following aspects:
What is the expected value and variance of y = 3x+2 knowing that E(X) = 8 and var(X) = 4.
(b) Suppose that the initial conditions are as follows: y0 = 0 and et = 0 for t= 0. Impose the initial conditions in order to find the general solution.
Help with how to calculate a value from the dickey fuller test
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