Chordia, Roll and Subrahmanyam (2005, CRS) estimate the speed of convergence to market efficiency based on short-horizon return predictability of the 150 largest NYSE firms. We extend CRS to a broad panel of NYSE stocks and are the first to examine the relation between electronic communication...

In a large sample setting, we compare four broadly available industry classification schemes in their effectiveness to group stocks with similar operating characteristics. We demonstrate the advantage of the Global Industry Classification Scheme to be consistent across different application...

We compare different industry concentration ratios based on the Standard Industry Classification (SIC) system to ratios based on the Global Industry Classification Standard (GICS) system and demonstrate through the analysis of industry markups that GICS-based measures are better proxies for the...

We examine the firms' decisions in freezing their defined-benefit pension plans and the effect it has on shareholders' wealth. Plan freezes help relieve sponsors of the implicit promises made to employees regarding future compensation. We find evidence that a pension plan freeze has a positive...

We analyze all NASDAQ firms with respect to their short-horizon return predictability, which Chordia et al. (2008) formulate as an inverse indicator of market efficiency. Our results confirm that increased liquidity enhances market efficiency, and show that this effect is amplified during...

Chordia et al. (2008, hereafter CRS) examine short horizon return predictability from past order flows of large, actively traded NYSE firms across three tick size regimes and conclude that higher liquidity facilitates arbitrage trading which enhances market efficiency. We extend CRS to a...

Purpose The purpose of this paper is to investigate the effect of the information disclosure quantity on the pricing efficiency of stocks. Design/methodology/approach Using a sample of large and actively traded Canadian companies listed on the Toronto Stock Exchange, the authors utilize annual...

Purpose – Using S&P 500 additions, the purpose of this paper is to test the permanence of abnormal returns around the index inclusion announcement and effective implementation dates to differentiate among competing explanations for the index inclusion premia puzzle. Design/methodology/approach...