In contrast, some studies have reported an adverse effect of share
repurchases on liquidity. Examining a sample of 244 open market
repurchase programmes made by 198 listed firms on the New York
Stock Exchange (NYSE) between 1970 and 1978, Barclay and Smith
(1988) find that bid-ask spreads widen around share repurchase
announcements. They argue that the open market repurchases increase
the adverse selection cost component of bid-ask spreads because the
market makers are more likely to incur losses as they trade with the
better-informed managers. Employing a sample of 1,526 actual share
repurchases made by 103 listed companies in Hong Kong over the
period of 1996-1999, Brockman and Chung (2001) investigated the
liquidity impact of open market share repurchases. They find that
bid-ask spreads are wider and depths are lower as a result of actual
share repurchases. Investigating 36,848 share repurchases made by
352 French firms for the period between 2000 and 2002, Ginglinger and
Hamon (2007) find that bid-ask spreads widen and depths narrow on
repurchasing days. They explain that open market share repurchases
decrease liquidity primarily because market participants can detect the
presence of better-informed managers. These findings, which indicate
that stock repurchases have negative impacts on liquidity, are therefore
consistent with the information asymmetry hypothesis.
In contrast, some studies have reported an adverse effect of sharerepurchases on liquidity. Examining a sample of 244 open marketrepurchase programmes made by 198 listed firms on the New YorkStock Exchange (NYSE) between 1970 and 1978, Barclay and Smith(1988) find that bid-ask spreads widen around share repurchaseannouncements. They argue that the open market repurchases increasethe adverse selection cost component of bid-ask spreads because themarket makers are more likely to incur losses as they trade with thebetter-informed managers. Employing a sample of 1,526 actual sharerepurchases made by 103 listed companies in Hong Kong over theperiod of 1996-1999, Brockman and Chung (2001) investigated theliquidity impact of open market share repurchases. They find thatbid-ask spreads are wider and depths are lower as a result of actualshare repurchases. Investigating 36,848 share repurchases made by352 French firms for the period between 2000 and 2002, Ginglinger andHamon (2007) find that bid-ask spreads widen and depths narrow onrepurchasing days. They explain that open market share repurchasesdecrease liquidity primarily because market participants can detect thepresence of better-informed managers. These findings, which indicatethat stock repurchases have negative impacts on liquidity, are thereforeconsistent with the information asymmetry hypothesis.
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