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

Firm''s profit function, A  firm manufactures  and  sells  a  product  that...

A  firm manufactures  and  sells  a  product  that  has  the  following  demand function:       Q = 180 - 4P   where P  is price, Q  is quantity.  It also  faces  the  following

Lag, reasons of lags

reasons of lags

find the weighted average cost of capital , PrivateJets (PJ) is considerin...

PrivateJets (PJ) is considering expanding its operations in the corporate travel market. Currently, PJ has a capital structure with a 25% debt-equity ratio. Their levered equity

Dropout equation - unemployment variable, Consider the following equations ...

Consider the following equations designed to estimate  a school's test scores (Test) and the school's dropout rate (Drop). Test i = B 0 + B 1 *Parent Ed i + B 2 *school quali

Ac, what is ac that mines average cost,

what is ac that mines average cost,

Request of answers, Ask q2. Using a sample of 545 full-time workers, a rese...

Ask q2. Using a sample of 545 full-time workers, a researcher is interested in the question as to whether women are systematically underpaid compared with men. First, a research es

Discuss the criteria of the evaluation framework, Question 1: Explain t...

Question 1: Explain the main drivers of globalisation and ascertain whether they have helped to reduce the gap between the rich and the poor countries. Question 2: Disc

Replication of the work of a published paper, Hi I am currently working on ...

Hi I am currently working on my econometrics coursework which is to replicate a published paper. I was given the same data set as the paper and suppose to get the same answer as th

Transportation problems, Process of least cost method and how to do a minim...

Process of least cost method and how to do a minimisation problem

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