Random Walk

Introduction The Market Efficiency Hypothesis is one of the adjacent researched aras of finance. In its weak form, the hypothesis states that the asset equipment casualtys cannot be resolute based on the past crusades in the tolls. In this report, we standard this conclusion on the popular market indices: Dow Jones Industrial mean(a) (DJIA), S&P 500 and Nasdaq Composite (NSDQ). These three indices are widely followed and considered representative of the US economic situation. In this sectionalisation we provide look at the major characteristics of each of the indices and their movement done the past two decades. Dow Jones Industrial Average (DJIA) consists of 30 fellow member companies from various industries in the US, including manufacturing, retail, finance and IT. It is a legal injury charge major power and the look on of the powerfulness is the conglutination of its office prices divided by a divisor which factors in melody splits and dividend announ cements. Being price weighted, the index is heavily influenced by companies with a higher price irrespective of the market capitalization. The nonchalant index levels for each of the three indices are obtained for the last 20 days and the continuous daily returns are calculated. The time series plot of grounds of the index, its returns and the descriptive statistics of the returns are presented in Exhibit 1.

As expected price level of the DJIA is not stationary. For instance, there was a steep sum up 91 to 99, followed by a sudden reduce from until 03, (owing to the dotcom miraculous food and bust), reflecting unstable volatility and mean. We also conducted ADF analyze to test whole root, the result had a p-value of 0.4261, s! howing the inability to reject the unavailing hypothesis that the series is non-stationary at 5% significance level. The daily returns have a mean value close to correct as seen from the time series plot and the descriptive statistics. However, the variance is not constant, indicating that heteroskedasticity exists. The huge increase in the volatility may be attributed to the...If you want to get a full essay, pose it on our website: OrderEssay.net

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