Abstract
By considering various market microstructure effects, this letter proposes a comprehensive trade indicator model incorporating trade duration, order sizes, bid–ask spreads, and market depth into a unified framework. Examining the intraday price behavior of the KOSPI200 futures market, we find that (i) fast trading indicates informed trading, (ii) stealth trading does not prevail, (iii) order-processing costs reach economies of scale, and (iv) liquidity significantly affects investors’ order submission decisions in the highly liquid market.
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