You have been provided with daily data starting in January 2009 on the main New Zealand stock market index, the NSX-50. Choose a suitable model for measuring volatility on the New Zealand stock market. You may carry out any data transformations you believe are necessary.
Estimate your model, carry out error tests on your model and take any corrective measures that are required. You should include any variables you need to carry out the test(s) in part (c).
Carry out one or more statistical tests to determine if volatility has increased since the earthquake.