Jaehoon Lee

Senior Lecturer

School of Banking and Finance
UNSW Business School
University of New South Wales
NSW, Australia


2012 - Present    UNSW Business School, University of New South Wales (UNSW)NSW, Australia
  • Senior Lecturer at the School of Banking and Finance

2015 - 2016        Yonsei University School of Business, Seoul, South Korea
  • Assistant Professor at Finance Department


2007 - 2012         University of Illinois at Urbana-Champaign, Illinois, USA
  • Ph.D., Finance
  • Advisor: Professor George G. Pennacchi and Professor Timothy C. Johnson

2006 - 2007         Korea Advanced Institute of Science and Technology (KAIST), Business School, Seoul, South Korea
  • M.S., Management Engineering

1999 - 2005         Korea Advanced Institute of Science and Technology (KAIST), Daejon, South Korea
  • B.S., Computer Science (major), Applied Mathematics (minor); Summa Cum Laude


Some important puzzles in macro finance can be resolved in a model featuring systematically varying volatility of unpriced shocks to firms' earnings.  In the data, the correlation  between corporate debt and stock market valuations is low. The model accounts for this via the opposing effect of unpriced earnings risk on levered debt and equity prices. The model also explains the low (or nonexistent) risk-reward relation for the market portfolio of levered equity via the opposing effects of unpriced and priced uncertainty (both components of  stock volatility) on the levered equity risk premium. Versions of the model calibrated to empirical measures of both types of fundamental risk can quantitatively  substantiate these explanations. Variation in residual earning dispersion accounts for a significant fraction of observed disagreement between debt and equity valuations, and of realized stock volatility. The implication that the two components of risk should forecast the levered equity risk premium with opposite signs is also supported in the data. The results are a notable advance for risk-based asset pricing.

Risk Premium Information from Treasury Bill Yields (SSRN)
  • Journal of Financial and Quantitative Analysis (JFQA), forthcoming
  • 2011 China International Conference in Finance (CICF)
This paper finds that short-maturity Treasury-bill yields have unique information about risk premiums that is not spanned by long-maturity Treasury-bond yields. I estimate two components of risk premiums: one is for long-term and the other is for short-term. The long-term component steepens the slope of yield curves and has forecastability horizon of longer than one year. In contrast, the short-term component affects Treasury-bill yields but almost invisible from Treasury bonds, has forecastability horizon of less than one quarter, and is related to bond liquidity premiums.

Publications in Non-Finance Journals

Online Comment Moderation Policies for Deliberative Discussion-Seed Comments and Identifiability, with Kil-Soo Suh, Seongwon Lee, Eungkyo Suh, Hojin Lee
  • Journal of the Association for Information Systems (JAIS), forthcoming
The Internet is rapidly becoming the center of news readership because of the development of media information technologies and the proliferation of mobile devices. Unlike with traditional media, news may arrive on the Internet with the capability for readers to comment on it. But a side effect of this comment capability—malicious comments—is becoming a serious social problem. To alleviate this problem and increase the likelihood of deliberative discussion, we suggest two moderation policies—providing seed comments of good quality and increased identifiability through social networking service accounts—and examine their effects by using a longitudinal online experiment. The experimental groups were designed as 2 x 2 between-subjects factorial design. A total of 137 subjects read news stories and commented on them over 15 days by using a mobile Android application developed specifically for the experiment. We found the following relationships. First, both seed quality and identifiability improve the quality of user comments in terms of deliberative discussion. Second, their effects are comparable in magnitude. Third, there are no significant interaction effects between seeds and identifiability. Fourth, the effects of good seeds disappear early with anonymous users but persist when users' identities are revealed. Fifth, the effects of bad seeds are present and persistent only when combined with anonymity. Otherwise, the bad seeds will be canceled out by the positive effects of identifiability. Lastly, anonymous males are easily provoked to respond to bad seed comments, but most females do not respond to bad seed comments even in an anonymous situation.

Working Papers

Dynamic Capital Structure Model with Investment (paper)

This paper develops a dynamic equilibrium model of capital structure and investment decisions. It explains the difference between the intra- and inter-firm variations in Q ratio. Its intra-firm variations are determined by a firm's own productivity process, while the inter-firm variations are determined by the cross-sectional heterogeneity in firms' production technologies. Understanding this cross-sectional heterogeneity can explain why leverage and profitability are important determinants of investment. The model also successfully matches the moments of aggregate market returns as well as cross-sectional stock return anomalies such as value, profitability, and investment premiums.

Funding Liquidity and Its Risk Premiums (paper) (internet appendix) (data)
  • 2012 Annual Conference of the Paul Woolley Centre at the London School of Economics
  • 2012 China International Conference in Finance (CICF)
  • Hana Daetoo Securities Outstanding Paper Award at the 2011 Conference on Asia-Pacific Financial Markets (CAFM)
Liquidity might be categorized into two types: asset liquidity and funding liquidity. This paper presents a new approach to measure funding liquidity and demonstrates that the estimated funding liquidity can predict future stock market returns. The key idea is that, as capital constraints become more binding, speculators withdraw first from small stocks and then from large stocks. Given that asset liquidity is provided by speculators, the asset liquidity of large and small stocks would covary differently with shocks to speculators' capital depending on their participation in the markets. Based on this intuition, funding liquidity is measured as the difference of rolling correlations of stock market returns with large and small stocks' asset liquidity. The estimated funding liquidity appears positively correlated to aggregate hedge fund leverage ratios, stock market sentiments, and the total number of M&A activities, and negatively to bond liquidity premiums, Moody's Baa-Aaa corporate bond spreads, and the relative prevalence of liquidity mergers. The funding liquidity is able to predict future stock market returns, and its forecasting power is significant in both in-sample and out-of-sample tests. Its forecastability is robust to various equity premium predictors as well as subsample periods.

Honors and Awards

  • Hana Daetoo Securities Outstanding Paper Award at CAFM 2011 
  • Korea Foundation for Advanced Studies (KFAS) Scholarship (2007--2012)
  • Richard D. and Anne Marie Irwin Fellowship (2009--2010)
  • Merit-based School Scholarships (every year since high school, 1997--2007)
  • National Physics Competition (Silver Prize, High School Division, 1998)
  • Provincial Physics Competition (First Prize, High School Division, 1998)
  • National Science Competition (Silver Prize, Middle School Division, 1996)
  • Provincial Science Competition (Silver Prize, Middle School Division, 1996)

Work Experience

Jun - Aug 2009  Barclays Capital, New York, USA
                        Position: Summer Quant Associate within Fixed Income Research
                        Built a model to estimate monetary policy interest rate expectation and forward risk premium
                        Implemented a numerical computation library in C# to calibrate parameters of Svensson Curve

2003 - 2005       NHN Corp., Seoul, Korea
                        Position: Programmer (Online Game Server)
                        Designed the server structure and the communication protocol between servers and clients