TY - JOUR AU - Lucas,Deborah J. AU - McDonald,Robert L. TI - Equity Issues and Stock Price Dynamics JF - National Bureau of Economic Research Working Paper Series VL - No. 3169 PY - 1991 Y2 - February 1991 UR - http://www.nber.org/papers/w3169 L1 - http://www.nber.org/papers/w3169.pdf N1 - Author contact info: Deborah J. Lucas MIT Sloan School of Management 100 Main Street, E62-640 Cambridge, MA 02142 Tel: 617/715-4816 E-Mail: dlucas@mit.edu Robert L. McDonald Department of Finance Jacobs Center Northwestern University 2001 Sheridan Rd. Evanston, IL 60208-2006 Tel: 847-491-8344 Fax: 847-491-5719 E-Mail: r-mcdonald@northwestern.edu AB - This paper presents an information-theoretic, infinite horizon model of the equity issue decision. The model's predictions about stock price behavior and issue timing explain most of the stylized facts in the empirical literature: (a) equity issues on average are preceded by an abnormal positive return on the stock, although there is considerable variation across firms, (b) equity issues on average are preceded by an abnormal rise in the market, and (c) the stock price drops significantly at the announcement of an issue. In this model, the price drop at issue announcement is uncorrelated with the social cost of suboptimal investment due to asymmetric information; the welfare loss may be small even if the price drop is large. ER -