This thesis contributes to the literature by providing new insights into the patterns and market implications of insider trading. The inferences presented here are based on the insider trading reports filed with the Polish Securities and Exchange Commission and the New Zealand Exchange. First,...

Does legal insider trading contribute to market efficiency? Using the refinementproposed by the recent microstructure literature, we analyze the information contentof legal insider trading. Our sample encompasses 2,110 different companies subject to59,244 aggregated daily insider trades over the...