The present thesis is a microstructure study of the Warsaw Stock Exchange (WSE). In the first part, I find evidence in favor of the so-calles mixture of distributions hypothesis according to which the time-variant daily order flow translates into volatility persistence in stock returns. In part...

In this paper, we investigate the effect of institutional investors on the January stock market anomaly. The Polish and Hungarian pension system reforms and the associated increase in investment activities of pension funds are used as a unique institutional characteristic to provide evidence on...