Market Efficiency Analysis Custom Essay

Market Efficiency Analysis

The purpose of this part of the assignment is to make candidates/students familiar with some statistical techniques used in examining efficiency in financial markets and/or financial instruments. You are required

to make proper use of both financial theory and empirical practice using spreadsheets and statistical tools, such as MS Excel, EViews and SPSS.

You are employed as a junior analyst of a newly established Tracker Fund called Superior Index Fund Ltd (SIF). The company is currently located in the City of London and their core activity is the

management of tracker/index portfolios (from the theory we’ve seen so far, you should be familiar with these terms).
Having established a good clientele in the UK and a very successful portfolio for London Stock Exchange (LSE), your firm is considering expanding abroad. Your manager, Mr. James Broderick has asked you

to examine the efficiency of an overseas market in Snowbodia, a country located in Eastern Europe. Although the market has been established for at least 15 years now, it has never been subject to rigorous

examination. Another manager, Ms. Isabella Ostrowska, has worked in Snowbodia 10 years ago and based on her work experience then, thinks Snowbodia’s stock market is not efficient.
Depending on your findings and recommendations, your company is prepared to establish a new tracker fund that will cover the entire universe of stocks in this new country. This fund will be marketed to

wealthy individual investors from the UK.

BE WARNED… this is a potential investment that can generate millions of pounds for your company and therefore …mistakes are NOT TOLERATED at this point.
James Broderick has given you the data for analysis. This includes a randomly selected sample of adjusted price-series from the entire universe of stocks listed in Snowbodia.

As an analyst, you are required to do the following:

(a) Examine the normality of the stocks’ return-series (using the Bera-Jarque test in EViews and Kolmogorov-Smirnov test in SPSS);
(b) Perform a Run Test (in SPSS) to identify possible irregularities in the price series.
(c) Discuss the importance of specification tests (such as RESET) for your analysis.
(d) Do the ADF/PP/KPSS tests in EViews. Then, test the H0: proportion of inefficient stocks is not statistically different from zero.
(e) Choose any 10 stocks and fit an ARMA(p,q) model and comment on the choice of p and q. Discuss the importance of information criteria on choosing the appropriate number of lags. What is the purpose

of the Ljung-Box test when fitting ARMA models?
(f) Describe how you would use the theory of exponential smoothing to try and forecast share prices.
(g) Write a short report with your findings.

The written report should be around 4,000 words in length, word-processed. You should also attach all relevant tables with summaries of results as an appendix to your report. In the report you should:
• Explain the rationale behind your empirical tests and the methodology adopted. This part has to be concise and precise. No marks will be given for clutter …as in a real life scenario…it will lead to a P45!
• You have to use the appropriate scientific rhetoric. Therefore, you should define clearly your null and alternative hypotheses tested in each stage of the analysis.
• Provide a clear definition of the techniques/statistical tests used and WHY?
• Be precise in the underlying theory of efficient markets as all statistical numbers are as good as the story behind them! (We’ve covered these aspects in lecture five when we’ve examined the philosophical

aspect of scientific research in Finance).

The majority of the marks will be given to students that produce evidence of:
• Good understanding of the theory of efficient markets.
• Good understanding of statistical procedures.
• Ability to link properly the first two points above
• Critical thinking in the interpretation of the findings. (Don’t forget, this can be easily a real case scenario that could cost a lot of people a lot of serious money running to some hundreds of £millions)

When you are looking at your report, some good questions to ask are:

“Does this report show that I could hold an intelligible and well-informed discussion on the stock market with a market professional, like a stock-broker or an academic in the field?” or…“Why should I

choose this statistical technique instead of the other one?”, or…“OK…. I’ve got my number, …so WHAT now? What these numbers tell me about the market?”

The grade you achieve for this part will depend entirely on the level of understanding demonstrated in your report and your sound empirical backing.

In terms of referencing, you are required to use the Harvard system of citation. Also, beware of the academic regulations regarding plagiarism. Your report should also include a CD with your results from all

statistical tests and the report itself.

I strongly recommend that you get a copy of the SPSS and EViews manuals as soon as you have received your assignment brief…so as to familiarise yourself with elementary statistics and hypothesis testing

Use your lecture notes to grasp the theory behind efficient markets and basic financial econometrics.
Think about potential problems of financial time series such as those of heteroscedasticity and autocorrelation. Is there any possibility of these errors affecting your analysis?

Brooks, C. (2008) Introductory Econometrics for Finance, 2nd Edition (2011). Cambridge University Press.
Field A. (2005) Discovering Statistics Using SPSS. Sage Publications. London, UK.
Gujarati, D. (1995) Basic Econometrics. 3rd Edition. McGraw-Hill.
Maddala, G.S. (2001) Introduction to Econometrics. 3rd Edition. John Wiley &


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