M. Agha and R. Faff, An investigation of the asymmetric link between credit re-ratings and corporate financial decisions: ???Flicking the switch??? with financial flexibility, Journal of Corporate Finance, vol.29, pp.37-57, 2014.
DOI : 10.1016/j.jcorpfin.2014.08.003

H. Almeida, I. Cunha, M. Ferreira, and F. Restrepo, The Real Effects of Credit Ratings: The Sovereign Ceiling Channel, The Journal of Finance, vol.93, issue.1, pp.249-290, 2017.
DOI : 10.1016/j.jfineco.2008.07.007

A. Alp, Structural Shifts in Credit Rating Standards, The Journal of Finance, vol.22, issue.6, pp.2435-2470, 2013.
DOI : 10.1093/rfs/hhm061

H. Aslan, Do lending relationships affect corporate financial policies? Financ. Manag, pp.141-173, 2016.
DOI : 10.1111/fima.12097

R. Baghai, H. Servaes, and A. Tamayo, Have rating agencies become more conservative? Implications for capital structure and debt pricing, J. Financ, vol.69, 1961.

D. Bongaerts and F. P. Schlingemann, The Real Effects of Credit Ratings: Evidence from Corporate Asset Sales, SSRN Electronic Journal, 2016.
DOI : 10.2139/ssrn.2866484

P. Bolton and X. Freixas, Equity, Bonds, and Bank Debt: Capital Structure and Financial Market Equilibrium under Asymmetric Information, Journal of Political Economy, vol.108, issue.2, pp.324-351, 2000.
DOI : 10.1086/262121

A. Boot, Relationship Banking: What Do We Know?, Journal of Financial Intermediation, vol.9, issue.1, pp.7-25, 2000.
DOI : 10.1006/jfin.2000.0282

URL : http://www1.fee.uva.nl/fm/papers/Awaboot/english/Relationship_banking_know_JFI.pdf

A. Boot and A. Thakor, Financial System Architecture, Review of Financial Studies, vol.10, issue.3, pp.693-733, 1997.
DOI : 10.1093/rfs/10.3.693

M. Campello, J. R. Graham, and C. Harvey, The real effects of financial constraints: Evidence from a financial crisis, Journal of Financial Economics, vol.97, issue.3, pp.470-487, 2010.
DOI : 10.1016/j.jfineco.2010.02.009

S. Chernenko and A. Sunderam, The Real Consequences of Market Segmentation, Review of Financial Studies, vol.25, issue.7, 2012.
DOI : 10.1093/rfs/hhr143

P. Colla, F. Ippolito, and K. Li, Debt Specialization, The Journal of Finance, vol.10, issue.5, pp.2117-2141, 2014.
DOI : 10.1093/rfs/10.4.1203

D. Denis, Financial flexibility and corporate liquidity, Journal of Corporate Finance, vol.17, issue.3, pp.667-674, 2011.
DOI : 10.1016/j.jcorpfin.2011.03.006

D. Denis and V. Mihov, The choice among bank debt, non-bank private debt, and public debt: evidence from new corporate borrowings, Journal of Financial Economics, vol.70, issue.1, pp.3-28, 2003.
DOI : 10.1016/S0304-405X(03)00140-5

D. Diamond, Financial Intermediation and Delegated Monitoring, The Review of Economic Studies, vol.51, issue.3, pp.393-414, 1984.
DOI : 10.2307/2297430

D. Diamond, Monitoring and Reputation: The Choice between Bank Loans and Directly Placed Debt, Journal of Political Economy, vol.99, issue.4, pp.689-721, 1991.
DOI : 10.1086/261775

I. Dichev and J. Piotroski, The Long-Run Stock Returns Following Bond Ratings Changes, The Journal of Finance, vol.5, issue.1, pp.173-203, 2001.
DOI : 10.1016/0304-405X(77)90042-3

L. H. Ederington and J. C. Goh, Bond Rating Agencies and Stock Analysts: Who Knows What When?, The Journal of Financial and Quantitative Analysis, vol.33, issue.4, pp.569-585, 1998.
DOI : 10.2307/2331132

A. Ellul, C. Jotikasthira, and C. Lundblad, Regulatory pressure and fire sales in the corporate bond market, Journal of Financial Economics, vol.101, issue.3, pp.596-620, 2011.
DOI : 10.1016/j.jfineco.2011.03.020

L. P. Fields, D. R. Fraser, T. L. Berry, and S. Byers, Do Bank Loan Relationships Still Matter?, Journal of Money, Credit, and Banking, vol.38, issue.5, 2006.
DOI : 10.1353/mcb.2006.0071

M. Flannery and F. Rangan, Partial adjustment toward target capital structures, Journal of Financial Economics, vol.79, issue.3, pp.469-506, 2006.
DOI : 10.1016/j.jfineco.2005.03.004

J. Graham and C. Harvey, The theory and practice of corporate finance: evidence from the field, Journal of Financial Economics, vol.60, issue.2-3, pp.187-243, 2001.
DOI : 10.1016/S0304-405X(01)00044-7

J. Hand, R. Holthausen, and R. Leftwich, The Effect of Bond Rating Agency Announcements on Bond and Stock Prices, The Journal of Finance, vol.5, issue.2, pp.733-752, 1992.
DOI : 10.1016/0304-405X(77)90042-3

R. Holthausen and R. Leftwich, The effect of bond rating changes on common stock prices, Journal of Financial Economics, vol.17, issue.1, 1986.
DOI : 10.1016/0304-405X(86)90006-1

C. James, Some evidence on the uniqueness of bank loans, Journal of Financial Economics, vol.19, issue.2, pp.217-235, 1987.
DOI : 10.1016/0304-405X(87)90003-1

P. Jorion, C. Liu, and C. Shi, Informational effects of regulation FD: evidence from rating agencies, Journal of Financial Economics, vol.76, issue.2, pp.309-330, 2005.
DOI : 10.1016/j.jfineco.2004.05.001

URL : http://www.business.hku.hk/news.info/multimedia/seminar.20031029.pdf

P. Jorion and G. Zhang, Information Effects of Bond Rating Changes, The Journal of Fixed Income, vol.16, issue.4, pp.46-59, 2007.
DOI : 10.3905/jfi.2007.683317

D. Kisgen, Do Firms Target Credit Ratings or Leverage Levels?, Journal of Financial and Quantitative Analysis, vol.21, issue.06, pp.1323-1344, 2009.
DOI : 10.1111/j.1540-6261.2006.00866.x

S. Kothari and J. Warner, The Econometrics of Event Studies, Handbook of Empirical Corporate Finance. E. Eckbo, pp.3-36, 2007.
DOI : 10.2139/ssrn.608601

K. Lins, H. Servaes, and P. Tufano, What drives corporate liquidity? An international survey of cash holdings and lines of credit???, Journal of Financial Economics, vol.98, issue.1, pp.160-176, 2010.
DOI : 10.1016/j.jfineco.2010.04.006

R. T. Ramakrishnan and A. Thakor, Information Reliability and a Theory of Financial Intermediation, The Review of Economic Studies, vol.51, issue.3, pp.415-432, 1984.
DOI : 10.2307/2297431

J. Rauh and A. Sufi, Capital Structure and Debt Structure, Review of Financial Studies, vol.23, issue.12, pp.4242-4280, 2010.
DOI : 10.1093/rfs/hhq095

P. R. Rosenbaum and D. B. Rubin, The central role of the propensity score in observational studies for causal effects, Biometrika, vol.70, issue.1, pp.41-55, 1983.
DOI : 10.1093/biomet/70.1.41

J. E. Stiglitz and A. Weiss, Credit rationing in markets with imperfect information, Am. Econ, 1981.

A. Sufi, Bank Lines of Credit in Corporate Finance: An Empirical Analysis, Review of Financial Studies, vol.22, issue.3, pp.1057-1088, 2009.
DOI : 10.1093/revfin/hhm007

T. Tang, Information asymmetry and firms??? credit market access: Evidence from Moody's credit rating format refinement, Journal of Financial Economics, vol.93, issue.2, pp.325-351, 2009.
DOI : 10.1016/j.jfineco.2008.07.007

I. Hy, I. Hy, . Hy, and . Hy, and the ratio of bonds to total debt on indicator variables for time relative to the downgrade for all non-financial U.S. firms conditional on whether they were rated investment-grade (IG) or high-yield (HY) before the downgrade. The omitted time indicator is the year prior to the downgrade All variables are described in Appendix A Year before downgrade Omitted base year Year of downgrade 0, Table 10: Debt composition following rating downgrades This table presents estimates from regressions of net debt issuance Robust standard errors are in parentheses. ***, **, and * indicate statistical significance at the 1%, 5%, and 10% levels, respectively. Net) (0.006) (0.002) (0.002) (0.006) (0.008) (0.009) (0.009) Year after