신용등급 보유가 주식수익률과 변동성에 미치는 영향
Effects of Credit Rating on Stock Return and Volatility
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본 연구는 신용평가정보가 주식시장에서 갖는 영향을 검증하기 위하여 국내 유가증권시장과 코스닥시장 상장기업의 신용등급 보유가 해당 기업 주식의 수익률 및 변동성에 미치는 영향을 분석한다. 주식분석과 신용평가는 기업의 미래 현금흐름과 위험을 예측하는 정보를 제공하므로 본질적 속성이 동일하며 신용평가정보는 기업의 내재가치를 반영한다. 기업의 내재가치가 가장 효율적으로 가격에 반영되는 곳이 주식시장이므로 상장기업의 회사채 신용등급 보유 유무가 주식의 수익률 및 변동성에 미치는 영향을 분석하는 것은 자본시장의 정보효율성을 검증하는 연구로 귀결된다. 본 연구의 전반적인 실증결과는 신용등급의 보유가 상장기업 주식의 내재가치 결정에 영향을 미치는 본질적인 정보요인은 아니지만 정보비대칭 하에서 불완전정보의 잡음성으로 인하여 발생하는 비본질적 주가변동성을 유의하게 감소시키는 확증기능을 수행함을 일관되게 제시한다.
Abstract
This paper tests the informational efficiency of capital market by investigating the effect of credit rating on firm valuation. In particular, this paper estimates the effect of the credit rating on stock return and volatility by employing cross-sectional regressions across listed firms instock exchanges, some of which possess credit rating(s) while others do not. The estimation results show that the credit rating reduces the volatility of stock return while it does not critically impact the stock return. These evidences imply that the credit rating information refines noisiness of imperfect information on the intrinsic value of the firm, reducing the volatility of stock return. Therefore, the credit rating information contributes to the mitigation of information asymmetry and hence the improvement in market efficiency.
참고문헌 (43)
- 김우철, "신용등급과 채권시장의 정보 효율성: 개별 주가와 신용스프레드의 동태적 패널 분석", 금융연구, 23(1), pp.75~110 (2009), 한국금융학회
- 김홍배, "신용스프레드와 주식시장간 변동성이전", 金融工學硏究, 8(3), pp.127~148 (2009), 한국금융공학회
- Akerlof, G., "The Market for “Lemons”: Quality Uncertainty and the Market Mechanism", Quarterly Journal of Economics, 84, pp.488~500 (1970)
- Avramov, D., "Credit ratings and the cross-section of stock returns", Journal of Financial Markets, 12, pp.469~499 (2009)
- Baginski, S., "Some evidence on the news content of preliminary earnings estimates", The Accounting Review, 69, pp.265~271 (1994)
- Bamber, L.., "Unexpected earnings, firm size, and trading volume around quarterly earnings announcements", The Accounting Review, 62, pp.510~532 (1987)
- Baumann, U., "Disclosure, volatility and transparency: An empirical investigation into the value of bank disclosure", Economic Policy Review, 10, pp.31~45 (2004)
- Beaver, W., "Differential properties in the ratings of certified versus non-certified bond-rating agencies", Journal of Accounting and Economics, 42, pp.303~334 (2006)
- Bongaerts, D., "Tiebreaker: Certification and Multiple Credit Ratings", Journal of Finance, 67, pp.113~152 (2012)
- Booth, J., "Capital Raising, Underwriting and the Certification Hypothesis", Journal of Financial Economics, 15, pp.261~281 (1986)
- Bushee, B., "Corporate disclosure practices, institutional investors, and stock return volatility", Journal of Accounting Research, 38(Supplement), pp.171~208 (2000)
- Campbell, J., "What moves the stock and bond markets? A variance decomposition for long-term asset returns", Journal of Finance, 48, pp.3~37 (1993)
- Coles, J., "On equilibrium pricing under parameter uncertainty", Journal of Financial and Quantitative Analysis, 30, pp.347~364 (1995)
- Diamond, D., "Disclosure, liquidity, and the cost of capital", Journal of Finance, 46, pp.1325~1360
- Dichev, I., "The Long-Run Stock Returns Following Bond Ratings Change", Journal of Finance, 56, pp.173~203 (2001)
- Duffee, G., "Stock returns and volatility: A firm level analysis", Journal of Financial Economics, 37, pp.399~420 (1995)
- Fama, E., "Efficient capital markets: a review of theory and empirical work", Journal of Finance, 25, pp.383~417 (1970)
- Fama, E., "Efficient capital markets II", Journal of Finance, 46, pp.1575~1617 (1991)
- Fama, E., "Business condition and expected returns on stocks and Bonds", Journal of Financial Economics, 25, pp.23~49 (1989)
- Fama, E., "The cross-section of expected stock returns", Journal of Finance, 47, pp.427~465 (1992)
- Frutos, M., "Trade disclosure and price dispersion", Journal of Financial Markets, 8, pp.183~216 (2005)
- Glosten L., "On the Relation Between the Expected Value and the Volatility of the Nominal Excess Returns on Stocks", Journal of Finance, 48, pp.1791~1801 (1993)
- Gul, F., "Short-Term Debt Maturity Structures, Credit Ratings, and the Pricing of Audit Services", The Accounting Review, 85, pp.877~909 (2010)
- Hand, J., "The Effect of Bond Rating Agency Announcements on Bond and Stock Prices", Journal of Finance, 47, pp.733~752 (1992)
- Holthausen, R., "The effect of sequential information releases on the variance of price changes in an intertemporal multi-asset market", Journal of Accounting Research, 26(1), pp.82~106 (1988)
- Karpoff, J., "A Theory of Trading Volume", Journal of Finance, 41, pp.1069~1087 (1986)
- Kim, O., "Trading volume and price reactions to public announcements", Journal of Accounting Research, 29, pp.302~321 (1991)
- Kliger, D., "The information value of bond ratings", Journal of Finance, 55, pp.2879~2902 (2000)
- Kothari, S., "Stock Returns, Aggregate Earnings Surprises, and Behavioral Finance", Journal of Financial Economics, 79, pp.537~568 (2006)
- Lee, S., "The effect of market transparency volatility and liquidity in the Korean stock market", Review of Quantitative Finance and Accounting, 11, pp.23~35 (1998)
- Luez, C., "The economic consequences of increased disclosure", Journal of Accounting Research, 38, pp.91~124 (2000)
- Livingston, M., "Split Bond Ratings and Information Opacity Premium", Financial Management, 39, pp.515~532 (2009)
- Mishkin, F., "Financial Markets and Financial Crises", pp.69~108 (1991), University of Chicago Press
- Pinches, G., "The Adjustment of Stock Prices to Bond Rating Changes", Journal of Finance, 33, pp.29~44 (1978)
- Sengupta, P., "Corporate disclosure quality and the cost of debt", The Accounting Review, 73, pp.459~474 (1998)
- Skinner, D., "Why firms voluntarily disclose bad news", Journal of Accounting Research, 32, pp.38~60 (1994)
- Stiglitz, J., "Credit rationing in markets with imperfect information", American Economic Review, 71, pp.393~410 (1981)
- Stiglitz, J., "Banks as social accountants and screening devices for the allocation of credit", Greek Economic Review, 12, pp.85~118 (1990)
- Tang, T., "Information Asymmetry and Firms’ Credit Market Access: Evidence from Moody’s Credit Rating Format Refinement", Journal of Financial Economics, 93, pp.325~351 (2009)
- Verrecchia, R., "Discretionary disclosure", Journal of Accounting and Economics, 5, pp.179~194 (1983)
- Verrecchia, R., "Information quality and discretionary disclosure", Journal of Accounting and Economics, 12, pp.365~380 (1990)
- Verrecchia, R., "Essays on disclosure", Journal of Accounting and Economics, 32, pp.97~180 (2001)
- Zhang, G., "Private information production, public disclosure, and the cost of capital: theory and implications", Contemporary Accounting Research, 18, pp.363~384 (2001)
