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

Draw a line starts from left to right and positive slope, Can you draw a li...

Can you draw a line which starts from left to right has a positive slope?

Fundamental theorems of welfare economics, 1. What are the two roles that p...

1. What are the two roles that prices play in a competitive economy? How are these two roles related to the Fundamental Theorems of Welfare Economics? 2. The Undercover Economis

Impulse Response function (IRF), My question is that when we use Impulse re...

My question is that when we use Impulse response function and how to use it. Is it used along with some other methodology. What is the meaning of graphs of IRF?

Draw intertemporal budget line, Over the next two years, Susan's income wil...

Over the next two years, Susan's income will be $33,000 in the first year and $33,000 in the second year. She can both borrow and lend money at the 10% of annual interest. (a) W

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

Calculate correlation coefficients, This problem refers to Doughtery's Educ...

This problem refers to Doughtery's Educational Attainment and Earnings Functions (EAEF) data set, accessible through the course website. This data is a subset of the U.S. National

Public economics, Explain the stages and various coordination mechanisms in...

Explain the stages and various coordination mechanisms involved in policy processes. Discuss various factors that influenced the agenda setting in policy processes

Production, Factor that affect the volume of production

Factor that affect the volume of production

Standard deviation of the damage, In a year, weather can impose storm damag...

In a year, weather can impose storm damage to a home. From year to year the damage is random. Let Y be the dollar value of damage in a given year. Assume that 95% of the year's Y=$

Demand=price, expected solution plus hypothesis

expected solution plus hypothesis

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