Calculate the sample mean-variance-skewness , Econometrics

Assignment Help:

The tab-delimited text file contains daily stock prices for the Brazilian petroleum company Petrobras from 31 December 2008 to 31 December 2009. The data were obtained from yahoo finance.

a) Calculate the continuously compounded annual return for the Petrobras stock for 2009. Calculate the simple annual return for 2009.

b) Open the data in Eviews and generate the series of daily log returns.

Calculate the sample mean, variance, skewness and kurtosis of the daily log returns. Comment on the results.

c) Explain the Jarque-Bera (J-B) test. Using this test, what conclusion can you make about the distribution of daily log returns? Is this result to be expected?

d) Explain the Ljung-Box Q*-test. Use the Ljung-Box Q* statistic to test the null hypothesis that there is no serial correlation in the daily log returns.

e) Square the daily log returns and then apply the Ljung-Box Q*-test to the squared daily log returns. Can you reject the null hypothesis of no serial correlation in squared daily log returns? Is this result to be expected?

 


Related Discussions:- Calculate the sample mean-variance-skewness

Correlation coefficient, a) Explain what is calculated by a correlation coe...

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

Pigouvian, In the United States, a buyer of a new electric is eligible for ...

In the United States, a buyer of a new electric is eligible for a one-time federal income tax credit of up to $4,000. Show the effect of this tax credit graphically, assuming the $

How to model my variables into a probit, I am beginning my thesis and I nee...

I am beginning my thesis and I need some advice. I am trying to estimate a probit model. The binary dependent variable is employment status and the independent variables include:

Modelling and multicollinearity, write a term paper on modelling and multic...

write a term paper on modelling and multicollinearity

National park , A chance sample of visitors to a National Park was intervie...

A chance sample of visitors to a National Park was interviewed regarding their impressions of the Park.  Of 200 interviewees, 120 said that they would probably make a return visit

Give me liberty, The textbook states, “Prejudice by itself did not create A...

The textbook states, “Prejudice by itself did not create American slavery.” Examine the forces and events that led to slavery in North America, and the role that racial prejudice p

Household and the environment , Choose Y and X variables to model on the Ho...

Choose Y and X variables to model on the Household and the Environment Survey 2006. Using Ox software to write a program to do estimation, and then write a report based on the an

Effects in financial data, Problem: a) In what circumstances would you ...

Problem: a) In what circumstances would you apply switching models? b) Using dummy variables for seasonality show how you would test for January effects in financial data?

Maximizing profit, verify Leibniz rule for differentiation under the integr...

verify Leibniz rule for differentiation under the integral sign for the following function 2x^2+3xy+3y^2

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd