This paper contributes to the discussion on the efficiency of newly emerged financial markets in transition economies. We use data on one of the most developed financial markets in transition, the Czech Republic, to investigate financial market efficiency by examining the reaction to...

This paper studies how the trade size and the historical sequence of trades affect bid-ask spreads, investors’ trading strategies, and the market maker’s learning process in a multi-period economy. First, we show that there is a nonzero cut-off size below which informed traders never buy or...

Evidence contrasting insider trades in the U.S. between high- and low- jeopardy periods and across firms at high and low risk for 10b-5 litigation indicates insiders condition their trades on foreknowledge of price-relevant public disclosures, but avoid profitable trades when jeopardy due to...