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

Estimate the electrons speed, An electron follows a helical path in a unifo...

An electron follows a helical path in a uniform magnetic field of magnitude 0.422T. The pitch of the path is 6.81 mm, and the magnitude force on the electron is 1.59 x 10 -15 N. W

Estimate a var involving equations, Question 1: a)  Explain what is a V...

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 invol

Healthcare, How will government regulation impact decision making

How will government regulation impact decision making

Equations, Y1=Y21Y2+Bx+U1 Y2=Y21Y1+U2 First equation is demand and second i...

Y1=Y21Y2+Bx+U1 Y2=Y21Y1+U2 First equation is demand and second is supply equation,can first equation be identifiable outline the method

Dummy Variable, Define Dummy Variable and write its importance in Regressio...

Define Dummy Variable and write its importance in Regression model.

Explain the meaning of regression, Problem 1: a. Explain the meaning o...

Problem 1: a. Explain the meaning of regression and its usefulness. b. Distinguish between GARCH (1, 1) and asymmetric GARCH. c. Clearly explain the two tests used for

Labor economics, Ask question #Minimum unions tie the hand of management an...

Ask question #Minimum unions tie the hand of management and inhibit efficient decision making100 words accepted#

Explain what is meant by the term regression, (a) Explain what is meant by ...

(a) Explain what is meant by the term regression. (b) Describe the justification for the inclusion of a disturbance term in a regression analysis. (c) With appropriate exa

Quantile regression coefficients, Consider the study of the effect of publi...

Consider the study of the effect of public-sponsored training programs. As argued in public programs of training and employment are designed to improve participant's productive ski

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