Law-Forums.org

[panteno]

Who can help me prepare for my econometrics final?? Answer anything you can.

1. Describe the sampling distribution of the sample mean
2. De?ne and apply the law of large numbers and the central limit theorem
3. Compute appropriate test statistics and perform hypothesis tests on the population mean of
a random variable
4. Write expressions for the OLS estimators of a simple regression
5. Write and explain the least-squares assumptions, and what they imply about the properties
of the OLS estimators
6. Explain omitted variable bias and potential solutions
7. Interpret the R
2
and the standard error of the regression
8. Quantitatively interpret coef?cient estimates from linear and non-linear regression models
9. Understand the difference between heteroskedasticity-robust standard errors and
homoskedasticity-only standard errors
10. Perform hypothesis tests, including joint hypothesis tests, on regression coef?cients
11. Explain simultaneity bias
12. Explain the nature of an instrumental variable – what determines valid instruments, what
determines weak instruments
13. Derive and describe the 2SLS estimator
14. De?ne and understand “autocorrelation,” “white noise,” “random walk”
15. Write an autoregression and compute forecasts from it
16. Explain the conditions for random variable to be “stationarity”
17. Explain the exogeneity conditions of a dynamic regression (distributed lag model)
18. Explain the problem causes by serially correlated errors in a dynamic regression, how to
solve the problem (this depends on whether X is exogenous or strictly exogenous)
19. Write the dynamic multipliers from a distributed lag model
20. Write a bi-variate vector autoregression model, and interpret its dynamic multipliers