In this paper, we study the dynamic interdependencies between high-frequency volatility, liquidity demand as well as …. Liquidity is causal for future volatility but not vice versa. Furthermore, trade sizes are negatively driven by past trading … ; volatility ; liquidity ; high-frequency data …

We study the volume-volatility relation by splitting volume into the number of trades and the average trade size at … individual and institutional level, and realized volatility into its continuous and jump components. We find that the number of … trades is the most important variable driving realized volatility. The number of trades by the individual investors carries …