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

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

Autocorrelation, what is the mathematical origin of durbin watson test for ...

what is the mathematical origin of durbin watson test for autocorrelation

European chemical industry, Show which of the following are cross-section d...

Show which of the following are cross-section data, giving the reasons. (i)    Wages of individual workers in the UK chemical industry in 2009. (ii)    Annual growth rates of eve

Correlation, what are the uses of correlation in economics?

what are the uses of correlation in economics?

Level of interest rate, You have won a contest and are allowed to choose be...

You have won a contest and are allowed to choose between two prizes. One option is to receive $200 now and another $200 a year from now. The second option is $150 now and $255 a

The south African government is not providing, Ask question #are there a...

Ask question #are there any welfare or subsidy payment that should be reviewed or added?

Gravity model, how to calculate trade potential on eviews?

how to calculate trade potential on eviews?

Calculate the percentage and test the hypothesis, Consider an equation to e...

Consider an equation to explain salaries of CEOs in terms of annual firm sales, return on equity (ROE, in percent form), and return on the firm's stock (ROS, in percent form): L

Elasticity, compare the price elasticity of demand on two parallel demand c...

compare the price elasticity of demand on two parallel demand curves for a given price and for a given quantity

#title.monopoly, suppose only one professor teaches economics at your unive...

suppose only one professor teaches economics at your university, would you say that this prof is a monopolist who can exact any price from students in the form of readings assigned

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