TY - JOUR AU - Hoberg,Gerard AU - Phillips,Gordon M. TI - Real and Financial Industry Booms and Busts JF - National Bureau of Economic Research Working Paper Series VL - No. 14290 PY - 2008 Y2 - August 2008 UR - http://www.nber.org/papers/w14290 L1 - http://www.nber.org/papers/w14290.pdf N1 - Author contact info: Gerard Hoberg Robert H. Smith School of Business University of Maryland 4423 Van Munching Hall College Park, MD 20742 Tel: 301/405-9685 Fax: 301/405-0359 E-Mail: ghoberg@rhsmith.umd.edu Gordon M. Phillips Marshall School of Business, Hoffman Hall University of Southern California 3670 Trousdale Parkway Bridge Hall 308 Los Angeles, CA 90089-0804 Tel: 213/740-0038 E-Mail: Gordon.Phillips@marshall.usc.edu AB - We examine how product market competition affects firm cash flows and stock returns in industry booms and busts. In competitive industries, we find that high industry-level stock-market valuation, investment and new financing are followed by sharply lower operating cash flows and abnormal stock returns. We also find that analyst estimates are positively biased and returns comove more when industry valuations are high in competitive industries. In concentrated industries these relations are weak and generally insignificant. Our results suggest that when industry stock-market valuations are high, firms and investors in competitive industries do not fully internalize the negative externality of industry competition on cash flows and stock returns. ER -