We study options market participants’ trading behavior before and after the options multiplier increases. After the options multiplier increases, the options market becomes more efficient. By analyzing the high-frequency microstructure dataset, we show that local retail and local institutional...

We examine the effects of limited investor attention on stock returns by using Google search volume index to measure investor attention. We also investigate whether national culture and market development have any role in this relationship. We find that the impact of investor attention on stock...