The paper has added by providing some additional dependence tests for this hypothesis. It states that there are two distinct processes for independent testing. Pure statistics test can be carried out for example. All these have been utilized in order to elaborate completely the nature of whether this hypothesis is right or not. This has been a major contribution.
From the use of this article, two possible courses have been taken by future research over price change distribution. Until the writing of this article, most of the research was focused on only finding the distribution of statistical nature which can coincide with price change empirical distributions (Fama, 1965). Relatively there was lesser effort being spent to explore the much common processes providing empirical distribution rise. Within this perspective, any general price formation model did not exist within the market of stocks for explaining the level of price and price changes distribution with regard to the behaviour of general variables of economics. With the suggestions provided in this article, it has been possible to develop and test models that can greatly contribute towards establishment of a strong foundation theoretically. The article also recommended making use of techniques of Monte Carlo in order to develop an approximate theory of sampling. This was suggested even when density functions related explicit expression are not known.
The article in brief stated that provided the empirical distribution frequency of long tailed nature being under observation, in various situations, subsequent attitude of an individual under such results will be similar. Efficient market hypothesis however is the most essential contribution. According to this hypothesis, if market is efficient, then the price changes will immediately reflect or else they will not (Fama, 1965).