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Faculty Directory

Jennifer Koski
Office: 303D
Dempsey Hall
Phone: 206-543-7975
Fax: 206-543-7472

Curriculum vitae:

Foster School of Business
University of Washington
Box: 353226
Seattle, WA 98195-3226

Theoretical financial models are important, but they do not exist in a vacuum. We need to understand the link between these models and the business world, both for our own academic research and for the classroom.

Jennifer Koski

Professor of Finance
Kirby L. Cramer Endowed Chair in Finance
Associate Dean for Academic and Faculty Affairs


PhD Stanford University (1991)
MBA Harvard University (1987)
BS Brown University (1983)

Academic Expertise

business valuation
corporate finance
dividend and payout policy / stock splits

Current Research

Equity offerings, Short selling, Credit ratings, Convertible bonds, Stock splits, Dividend policy, Information processing in securities markets

Positions Held

At the University of Washington since 1991
Financial analyst at Goldman Sachs & Company, 1983-1985

Selected Publications

  1. Arbitrage vs. Informed Short Selling: Evidence from Convertible Bond Issuers
    Journal Article:Hackney, J., Henry, T., and Koski, J., (2020). Journal of Corporate Finance, Vol. 65,
  2. Do Upgrades Matter? Evidence from Trading Volume
    Journal Article:Brogaard, J., Koski, J., and Siegel, A., (2019). Journal of Financial Markets, Vol. 43, pp. 54-77.
  3. Who Wins When Exchanges Compete? Evidence from Competition after Euro Conversion
    Journal Article:Dewenter, K., Han, X., & Koski, J., (2018). Review of Finance, Vol. 22 (6), pp. 2037-2071.
  4. Ex-Dividend Profitability and Institutional Trading Skill
    Journal Article:Henry, T. and Koski, J., (2017). Journal of Finance, Vol. 72(1), pp. 461-494.
  5. Short Selling Around Seasoned Equity Offerings
    Journal Article:Henry, T., & Koski, J., (2010). Review of Financial Studies, Vol. 23(12), pp. 4389-4418.
  6. Does Volatility Decrease after Reverse Stock Splits?
    Journal Article:Koski, J., (2007). Journal of Financial Research, Vol. 30(2), pp. 217-235.
  7. Information Flow and Liquidity Around Anticipated and Unanticipated Dividend Announcements
    Journal Article:Graham, J., Koski, J., & Loewenstein, U., (2006). Journal of Business, Vol. 79(5), pp. 2301-2336.
  8. Volatility, Autocorrelations, and Trading Activity After Stock Splits
    Journal Article:Kamara, A., & Koski, J., (2001). Journal of Financial Markets, Vol. 4(2), pp. 163-184.
  9. Prices, Liquidity, and The Information Content of Trades
    Journal Article:Koski, J., & Michaely, R., (2000). Review of Financial Studies, Vol. 13(3), pp. 659-696.
  10. How are Derivatives Used? Evidence from the Mutual Fund Industry
    Journal Article:Koski, J., & Pontiff, J., (1999). Journal of Finance, Vol. 54(2), pp. 791-816.
  11. Measurement Effects and the Variance of Returns After Stock Splits and Stock Dividends
    Journal Article:Koski, J., (1998). Review of Financial Studies, Vol. 11(1), pp. 143-162.
  12. Who Trades Around the Ex-Dividend Day? Evidence from NYSE Audit File Data
    Journal Article:Koski, J., & Scruggs, J., (1998). Financial Management, Vol. 27(1), pp. 58-72.
  13. A Microstructure Analysis of Ex-Dividend Stock Price Behavior Before and After the 1984 and 1986 Tax Reform Acts
    Journal Article:Koski, J., (1996). Journal of Business, Vol. 69(3), pp. 313-338.

Honors and Awards

PACCAR Award for Teaching Excellence, 2001, 2008, 2015
Charles E. Summer Outstanding Teaching Award, 2000, 2003, 2005, 2007, 2015.
Daniel R. Siegel Service Award, 2000, 2005, 2006, 2007, 2012, 2013, 2015.
Ron Crockett Award for Excellence in Graduate Teaching, 2014.
Ron Crockett Award for Innovation in Education, 2014.
Lex N. Gamble Family Award for Excellence in Case Development and Curriculum Innovation, 2012.
Dean’s Citizenship Award, 2004.
Andrew V. Smith Faculty Development Award, 2003.
PhD Mentor of the Year Award, 2001.
Burlington Northern Foundation Faculty Achievement Award, 1993.