Drug approval decisions: A note on stock liquidity effects
We analyze the relationship between positive stock returns, changes in trading activities, and liquidity improvements following drug approval announcements. Using a unique hand-collected data set on approval decisions in Europe, we find that stock liquidity does change. Stocks temporarily exhibit strong abnormal trading volume, lower spreads, and permanently become more liquid. Our results suggest that the initial positive wealth effect of a new drug release reflects both positive information content and liquidity improvements.
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Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Gur Huberman, 2001. "Contagious Speculation and a Cure for Cancer: A Nonevent that Made Stock Prices Soar," Journal of Finance, American Finance Association, vol. 56(1), pages 387-396, 02.
- Jonathan Berk & Richard C. Green & Vasant Naik, 1998.
"Optimal Investment, Growth Options, and Security Returns,"
NBER Working Papers
6627, National Bureau of Economic Research, Inc.
- Jonathan B. Berk & Richard C. Green & Vasant Naik, 1999. "Optimal Investment, Growth Options, and Security Returns," Journal of Finance, American Finance Association, vol. 54(5), pages 1553-1607, October.
- Jonathan Berk & Richard C. Green & Vasant Naik, . "Optimal Investment, Growth Options and Security Returns," GSIA Working Papers 64, Carnegie Mellon University, Tepper School of Business.
- Berkman, Henk & Eleswarapu, Venkat R., 1998. "Short-term traders and liquidity: a test using Bombay Stock Exchange data," Journal of Financial Economics, Elsevier, vol. 47(3), pages 339-355, March.
- Berkman, Henk & Nguyen, Nhut H., 2010. "Domestic liquidity and cross-listing in the United States," Journal of Banking & Finance, Elsevier, vol. 34(6), pages 1139-1151, June.
- Amihud, Yakov, 2002. "Illiquidity and stock returns: cross-section and time-series effects," Journal of Financial Markets, Elsevier, vol. 5(1), pages 31-56, January.
- Nandkumar Nayar & Ajai K. Singh & Allan A. Zebedee, 2008. "Share Repurchase Offers and Liquidity: An Examination of Temporary and Permanent Effects," Financial Management, Financial Management Association International, vol. 37(2), pages 251-270, 06.
- Easley, David & O'Hara, Maureen & Paperman, Joseph, 1998. "Financial analysts and information-based trade," Journal of Financial Markets, Elsevier, vol. 1(2), pages 175-201, August.
- Denis, David J & Kadlec, Gregory B, 1994. " Corporate Events, Trading Activity, and the Estimation of Systematic Risk: Evidence from Equity Offerings and Share Repurchases," Journal of Finance, American Finance Association, vol. 49(5), pages 1787-1811, December.
- Edith Ginglinger & Jacques Hamon, 2007.
"Actual share repurchases, timing and liquidity,"
- Karpoff, Jonathan M., 1987. "The Relation between Price Changes and Trading Volume: A Survey," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 22(01), pages 109-126, March.
- Dedman, Elisabeth & Lin, Stephen W.-J & Prakash, Arun J. & Chang, Chun-Hao, 2008. "Voluntary disclosure and its impact on share prices: Evidence from the UK biotechnology sector," Journal of Accounting and Public Policy, Elsevier, vol. 27(3), pages 195-216.
- Attig, Najah & Fong, Wai-Ming & Gadhoum, Yoser & Lang, Larry H.P., 2006. "Effects of large shareholding on information asymmetry and stock liquidity," Journal of Banking & Finance, Elsevier, vol. 30(10), pages 2875-2892, October.
- Krinsky, Itzhak & Lee, Jason, 1996. " Earnings Announcements and the Components of the Bid-Ask Spread," Journal of Finance, American Finance Association, vol. 51(4), pages 1523-35, September.
- Brown, Stephen J. & Warner, Jerold B., 1985. "Using daily stock returns : The case of event studies," Journal of Financial Economics, Elsevier, vol. 14(1), pages 3-31, March.
- Lakonishok, Josef & Shleifer, Andrei & Vishny, Robert W., 1992. "The impact of institutional trading on stock prices," Journal of Financial Economics, Elsevier, vol. 32(1), pages 23-43, August.
- Brad M. Barber & Terrance Odean, 2008. "All That Glitters: The Effect of Attention and News on the Buying Behavior of Individual and Institutional Investors," Review of Financial Studies, Society for Financial Studies, vol. 21(2), pages 785-818, April.
- I. Krinsky & J. Lee, 1996. "Earning Announcements and the Components of the Bid-Ask Aspread," Quantitative Studies in Economics and Population Research Reports 313, McMaster University.
- Jacquier, Eric & Titman, Sheridan & YalçIn, Atakan, 2010. "Predicting systematic risk: Implications from growth options," Journal of Empirical Finance, Elsevier, vol. 17(5), pages 991-1005, December.
- Boehmer, Ekkehart & Masumeci, Jim & Poulsen, Annette B., 1991. "Event-study methodology under conditions of event-induced variance," Journal of Financial Economics, Elsevier, vol. 30(2), pages 253-272, December.
- Sarkar, Salil K. & de Jong, Pieter J., 2006. "Market response to FDA announcements," The Quarterly Review of Economics and Finance, Elsevier, vol. 46(4), pages 586-597, September.
- Cohen, Kalman J. & Hawawini, Gabriel A. & Maier, Steven F. & Schwartz, Robert A. & Whitcomb, David K., 1983. "Friction in the trading process and the estimation of systematic risk," Journal of Financial Economics, Elsevier, vol. 12(2), pages 263-278, August.
- Joon Chae, 2005. "Trading Volume, Information Asymmetry, and Timing Information," Journal of Finance, American Finance Association, vol. 60(1), pages 413-442, 02.
- Han, Ki C., 1995. "The Effects of Reverse Splits on the Liquidity of the Stock," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 30(01), pages 159-169, March.
- Busse, Jeffrey A. & Clifton Green, T., 2002. "Market efficiency in real time," Journal of Financial Economics, Elsevier, vol. 65(3), pages 415-437, September.
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