American economist, Eugene Fama, proposed three types of efficiency:

• Weak form;
• Semi-strong form;
• Strong efficiency.

Weak form efficiency claims that all past prices of a stock are reflected in today's stock price. Therefore, technical analysis cannot be used to predict and beat a market.

Semi-strong efficiency implies that all public information is calculated into a stock's current share price. It means that neither fundamental nor technical analysis can be used to achieve superior gains.

Strong form efficiency is the strongest version of market efficiency. It states all information in a market, whether public or private, is accounted for in a stock price. Not even insider information could give an investor the advantage.

• Efficient markets respond very fast to new information;
• If the share price is a reflection of all available information, it is impossible to use that information for market predictions;
• It is impossible to predict market movement other than randomly.

There are a large number of direct and indirect tests as evidence for or against the EMH. Scientist Simon Keane in his work from 1983. Provides some basic explanations of what makes markets inefficient. His very popular idea is called “Gambler’s Fallacy”. This can be explained as the belief that what “goes up must come down”. This phenomenon exhibits itself amongst investors whose stocks price has risen for a period of time and so is deemed to be “due for a fall”. Generally speaking, by knowing the relationship of the current price to recent price movements, one can better estimate the likely direction of future price movements, i.e. historical data such as price movement can be used to predict future prices. This provides credibility to the argument that the market is predictable and inefficient. Therefore, the issue is to see whether the stock market is predictable or not by detecting serial dependence of stock returns.

Two very popular tests of market efficiency will be presented in this paper - Augmented Dickey-Fuller (ADF) test, Run test and Autocorrelation Function (ACF) test. Research will test if some well-known anomalies on the capital market of Montenegro do exist in order to show if critics of EMH are justifiable. Some of the main anomalies that have been identified are as follows: "January effect", "Monday effect", "Holiday effect" and "Turn-of-the-month effect".

• To evaluate efficient market hypotheses by the three vital parameters of the market. i.e. Dividend policy, bonus shares and split of share.
• To study the impact of dividend policy, bonus share issue and split of share over the stock prices of different firms from different sectors.
• To give findings and suggestions for this study.

Secondary data have been taken from company’s websites. Data have been analysed by the help of t-test. Three different firms have been taken from different sectors for the study. The time period for the study is of one week.

The above table shows the Open, High, Low and Close Stock Price of the Canara Bank from 2nd May, 2012 to 10th May, 2012. These stock prices are of 7 days as the stock market deals from Monday to Friday 9:00 a.m. to 5:00 p.m. These prices are before declaration of dividend.

The above table shows the Open, High, low and Close Stock Prices of Canara Bank from 11th may, 2012 to 21st May, 2012, i.e. 7 days. These prices are after declaration of dividend.

The above table shows t-test of Open Stock Price of Canara Bank. Here, the calculated value of t-test is 0.00110 which is lower than table value which is 2.44691. Hence the null hypothesis is accepted and Alternative hypothesis is rejected. So the difference is insignificant.

The above table shows t-test of High Stock Price of Canara Bank. Here, the calculated value of t-test is 0.00039 which is lower than table/critical value which is 2.44691. Hence the null hypothesis is accepted and Alternative hypothesis is rejected. So the difference is insignificant.

The above table shows t-test of Low Stock Price of Canara Bank. Here, the calculated value of t-test is 0.00240 which is lower than table/critical value which is 2.44691. Hence the null hypothesis is accepted and Alternative hypothesis is rejected. So the difference is insignificant.

The above table shows t-test of Close Stock Price of Canara Bank. Here, the calculated value of t-test is 0.00063 which is lower than table/critical value which is 2.44691. Hence the null hypothesis is accepted and Alternative hypothesis is rejected. So the difference is insignificant.

The above table shows the Open, High, Low and Close Stock Price of the Reliance Industries Ltd. from 25th September, 2009 to 7th October, 2009. These stock prices are of 7 days as the stock market deals from Monday to Friday 9:00 a.m. to 5:00 p.m. These prices are before declaration of bonus shares.

The above table shows the Open, High, low and Close Stock Prices of Reliance industries Ltd. from 8th October, 2009 to 17th October, 2009, i.e. 7 days. These prices are after declaration of bonus shares.

Above table shows t-test of the Open Stock Price of Reliance industries Ltd. Here, calculated value is 0.2070, which is lower than table value, which is 2.4469. Hence the null hypothesis is accepted and Alternative hypothesis is rejected. So the difference is insignificant.

Above table shows t-test of the Low Stock Price of Reliance industries Ltd. Here, calculated value is 0.3267, which is lower than table value, which is 2.4469. Hence the null hypothesis is accepted and Alternative hypothesis is rejected. So the difference is insignificant.

Above table shows t-test of the Close Stock Price of Reliance industries Ltd. Here, calculated value is 0.4555, which is lower than table value, which is 2.4469. Hence the null hypothesis is accepted and Alternative hypothesis is rejected. So the difference is insignificant.

The above table shows the Open, High, Low and Close Stock Price of the Jindal stainless. from 15th January, 2004 to 23rd January, 2004. These stock prices are of 7 days as the stock market deals from Monday to Friday 9:00 a.m. to 5:00 p.m. These prices are before declaration of split shares.

The above table shows the Open, High, low and Close Stock Prices of Jindal Stainless from 27th January, 2004 to 5th February, 2004, i.e. 7 days. These prices are after declaration of split shares.

Above table shows t-test of the Open Stock Price of Jindal Stainless. Here, calculated value is 0.0001, which is lower than table value, which is 2.4469. Hence the null hypothesis is accepted and Alternative hypothesis is rejected. So the difference is insignificant.

Above table shows t-test of the High Stock Price of Jindal Stainless. Here, calculated value is 0.0002, which is lower than table value, which is 2.4469. Hence the null hypothesis is accepted and Alternative hypothesis is rejected. So the difference is insignificant.

Above table shows t-test of the Low Stock Price of Jindal Stainless. Here, calculated value is 0.0001, which is higher than table value, which is 2.4469. Hence the null hypothesis is accepted and Alternative hypothesis is rejected. So the difference is insignificant.

Above table shows t-test of the Low Stock Price of Jindal Stainless. Here, calculated value is 0.0003, which is higher than table value, which is 2.4469. Hence the null hypothesis is accepted and Alternative hypothesis is rejected. So the difference is insignificant.

• The data which have been taken for research is a secondary data.
• There are only three companies from different sectors have been taken for the study.
• Time period for study is of one week.

• We can see from t-test that the Open, high, Low and Close stock price of Canara bank decreases after declaration of dividend.
• It means that if the rate of dividend is not in favour of share holders, the demand of stock of respective firms decreases and therefore the firm has to reduce its stock price.
• Thus, here the difference is insignificant, H0 is accepted.

• The open price of RIL increases for first three days of a week after declaration of bonus shares and minor decrease is found in last four days of a week.
• The high price of RIL increases for first three days of a week after declaration of bonus shares, minor decrease is found in next three days and again it increases at the last day of week.
• The low price of RIL increases after declaration of bonus shares accept 5th and 6th day of a week.
• There is an increase in stock price for first four days of a week in RIL and then the prices are decrease in last three days of a week.

• We can see from t-test that the Open, high, Low and Close stock price of JINDAL Stainless are continuously decrease after Splitting of shares.
• Thus, here the difference is insignificant, H0 is accepted.

• Dividend rate should be in favour of the share holders so that even the minor decrease cannot be found in stock price.
• The time period of payment of dividend must be considered as a vital point.
• The dividend policy also plays an important role in the fluctuation in stock prices.
• The ratio of payment of bonus share is one of the key players in determining the stock price. So that RIL should consider this ratio.
• Jindal stainless should split their shares into such a way that the new face value of shares and the number of shares can maintain the balance of old face value of shares.

• IT and Banking sector, last year’s dividend and PAT have a significant effect on the current year’s dividend.
• There is a great impact of dividend policy, declaration of bonus shares and split of shares on the stock prices of the companies.
• Therefore a company should decide their best Efficient Market Hypotheses.
• Finally to make more efficient it is expected that the authority of the market would introduce sophisticated means of investment and tools in the near future and above all the campaigns to sensitize people about the importance of the stock market and how to invest in the stock market and what are the benefits.

REFERENCES :

1. http://www.tulane.edu/~gatchev/Liquidity_and_Dividends.pdf
2. http://ebookbrowse.com/bonus-share-issue-pdf-d330078706
3. http://www.investopedia.com/ask/answers/113.asp
4. http://www.powershow.com/view/1dec4e-N2ZlM/Dividend_Policy_powerpoint_ppt_presentation
5. http://www.moneycontrol.com/company-facts/canarabank/dividends/CB06#CB06
6. http://www.moneycontrol.com/company-facts/relianceindustries/bonus/RI#RI
7. http://www.moneycontrol.com/company-facts/jindalstainless/splits/JSL01#JSL01
8. http://www.bseindia.com/stock-share-price/canara-bank/canarabank/532483/
9. http://www.bseindia.com/stock-share-price/reliance-industries-ltd/ril/500325/
10. http://www.bseindia.com/stock-share-price/jindal-stainless-ltd/jsl/532508/