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

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

Define Dummy Variable and write its importance in Regression model.

Ac, what is ac that mines average cost,

what is ac that mines average cost,

Total product-average product and marginal product, Consider the following ...

Consider the following short run production function. Q 0 15 35 60 90 115 135 150 16

Demand functions for the two products , The  firm  is  considering  manufac...

The  firm  is  considering  manufacturing  a  second  product  in  its  factory alongside the first. The demand functions for the two products are: Q d1 =180 - 4P 1 Q d2 =90

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

Find the best choice, Paul's utility function is u(x, y) = xy 2 . Let unit ...

Paul's utility function is u(x, y) = xy 2 . Let unit prices be given by  Px = 6 cents,  Py = 2 cents, and assume that Paul's budget is the same as Peter's from the previous problem

Explain the concept of cointegration, Problem 1: (a) Using examples exp...

Problem 1: (a) Using examples explain the concept of cointegration. (b) Explain the term ‘stationarity' and its importance. (c) Differentiate between stochastic and determinist

Macro econometrics.., (b) Suppose that the initial conditions are as follow...

(b) Suppose that the initial conditions are as follows: y0 = 0 and et = 0 for t= 0. Impose the initial conditions in order to find the general solution.

Time series analysis, usefulness of time series in a business with a detail...

usefulness of time series in a business with a detailed explanation

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