Stock Essay

1087 Words 5 Pages
An active investor invests his all resources to determine the fair value of a stock. However, most of the times, he is unable to acquire a piece of information that is not available in the public domain and that information may alter the probability distribution of his investment decision (James Lorie, 1980). In this phenomenon, an active investor may infer the non-public information by considering corporate insiders’ action in their own stock. Many previous studies (e.g., Jaffe, 1974; Finnerty, 1976a, b; Seyhun, 1986, 1988a, b; Rozeff and Zaman, 1988; Lin and Howe, 1990) document that corporate insiders pursue special information and on that special information, not only insiders are able to earn abnormal profits through trading stocks of …show more content…
Since the large shareholders of emerging countries’ firm bear additional risks that are associated with holding an undiversified portfolio (Demsetz, 1986). In addition to controlling rights, insider trading may provide an incentive to large shareholders to bear additional risks (Maug, 2002). Moreover, the large fraction of shares owned represents greater power to access non-public price sensitive information to the owner, and that should be reflected in stock trading activities (Demsetz, 1986). Second difference, an interesting aspect of this study is that we provide a detail comparison of both the US and Indian regulation on insider trading. There are marked differences between the two set of regulations with respect of the length of reporting within which insiders must report their trades to the firm, and the level of enforcements.
Third difference is the most influential that associate the information of insider trading with market efficiency. The common definition of market efficiency is that stock prices at any time ‘fully reflect’ all available information (Fama, 1970). Gilson and Kraakman (1984) state that the market efficiency of the stock market is a function of the initial distribution of information among traders in given market, moreover, the initial distribution of information has inverse relationship with the cost of information. In other word, the relative market efficiency with respect of any

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