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The effects of qualified audit opinions on earnings response coefficients

Journal of Accounting and Economics 1992 15(2-3), 229-247
This study documents that the market's responsiveness to earnings announcements declines significantly after the issuance of qualified audit reports for a sample of ‘subject to’ qualifications and consistency qualifications. The results are consistent with a hypothesis that audit qualifications reduce the market's responsiveness to earnings announcements by altering the market's perception of earnings noise or the persistence of earnings, or both. Alternatively, a decline in earnings response coefficients may be observed because audit qualifications are more likely in firms that have undergone economic or structural changes and these changes, rather than the qualification per se, lead to decreased persistence or increased noise.

An empirical examination of debt covenant restrictions and accounting-related debt proxies

Journal of Accounting and Economics 1990 12(1-3), 45-63
Prior studies of discretionary accounting choices have generally relied on one or more proxy variables to measure closeness to debt covenant restrictions without actually examining the existence or extent of restrictive covenants. This study tests the validity of the most commonly used proxy, the debt–equity ratio, by examining its relation to actual debt covenant restrictions for a random sample of U.S. firms. The results indicate that several versions of the debt–equity ratio capture the existence and tightness of retained earnings restrictionsand the existence of net tangible asset and working capital restrictions, but are unrelated to four other covenant restrictions.

The behavior of daily stock market trading volume

Journal of Accounting and Economics 1989 11(4), 331-359
This paper documents the empirical distributions of daily trading volume prediction errors for several commonly used volume measures and expectation models for individual firms and for portfolios. The prediction errors for raw volume measures are significantly positively skewed, with thin left tails and fat right tails. However, natural log transformations of the volume measures are approximately normally distributed. For longer than one-day prediction intervals, recognition of autocorrelation in daily trading volume is advantageous for detecting abnormal trading. Results of analysis for clustering of events and for different size firms are also presented.

Competition and loan contracting

Review of Finance 2026 30(4), 1187-1225
Abstract A theoretical model of the borrower–lender relationship predicts that increased competitive threats lead to a reduction in loan covenant restrictiveness that is stronger for groups of borrowers who face constraints to their ability to raise external financing or compete in the product market. These predictions arise because competition impacts the dynamics of borrower performance so that lenders must trade off the benefit of controlling agency problems against a heightened cost of lost product market opportunities for the borrower, ultimately lowering the optimal use of covenants. We find strong empirical support for these predictions, highlighting an important role of competition for optimal financial contracting rooted in underlying agency problems.

Robust Portfolio Optimisation with Multiple Experts

Review of Finance 2010 14(2), 343-383 open access
Abstract We consider mean-variance portfolio choice of a robust investor. The investor receives advice from J experts, each with a different prior for expected returns and risk, and follows a min-max portfolio strategy. The robust investor endogenously combines the experts' estimates. When experts agree on the main return generating factors, the investor relies on the advice of the expert with the strongest prior. Dispersed advice leads to averaging of the alternative estimates. The robust investor is likely to outperform alternative strategies. The theoretical analysis is supported by numerical simulations for the 25 Fama-French portfolios and for 81 European country and value portfolios.

Deposit insurance and market discipline

Journal of Financial Stability 2023 64, 101101
Limited coverage is a standard feature in deposit insurance schemes. It is used to limit moral hazard, and achieves this objective by reinforcing market discipline: depositors have more incentives to monitor banks’ risk-taking if they have skin in the game. In this paper, I study market discipline and coverage levels by analyzing the relationship of funding costs and deposit growth with banks’ risk. I use a database of Colombian banks’ balance sheets and take advantage of a sudden, significant, and exogenous increase in the coverage level that occurred in April 2017. I find evidence of market discipline throughout the period of analysis and most results are consistent with it not being reduced by the change in the coverage level. The results are nuanced, however. Two variables are impacted: one in the quantity and the other in the price dimension. Furthermore, results also vary when I look at specific groups of banks separately. Market discipline is not present in big banks. Too big-to-fail perceptions seem to limit it. This is also the case for banks concentrated in fully insured deposits, where limited coverage has a less prevalent role.

Macroeconomic fluctuations and corporate financial fragility

Journal of Financial Stability 2012 8(4), 219-235
Using a large sample of accounting data for non-financial companies in France, this paper studies the interactions between macroeconomic shocks and companies’ financial fragility. We consider links in both directions, namely whether firms’ bankruptcies are affected by macroeconomic variables, and whether bankruptcies determine the business cycle. We estimate forecasting equations for firms’ bankruptcy using Shumway's (2001) approach and study the joint dynamics of bankruptcies and macroeconomic variables within an exogenous VAR type model estimated at the sector level. We find evidence of reciprocal links between the bankruptcy rate and the output gap and highlight significant “second round effects” of shocks to the output gap on bankruptcies. We show how taking into account the dynamic transmission of macroeconomic shocks matters in stress testing exercises.

Stress testing and corporate finance

Journal of Financial Stability 2008 4(3), 258-274 open access
The article contributes to the literature on financial fragility, studying how macroeconomic shocks affect supply and demand in the corporate debt market. We take into account the effect of the competitive environment, as well as the risk level, measured by companies’ default rate. The model is estimated using data from the Harmonised BACH database of corporate accounts for large euro area countries on the 1993–2005 period, in order to carry out an illustrative stress testing exercise. We measure the impact of large macroeconomic shocks (a severe recession and a sharp increase in oil prices) on the equilibrium in the debt market.

Customers and investors: A framework for understanding the evolution of financial institutions

Journal of Financial Intermediation 2019 39, 4-18 open access
Financial institutions are financed by both investors and customers. Investors expect an appropriate risk-adjusted return for providing financing and risk bearing. Customers, in contrast, provide financing in exchange for specific services, and want the service fulfillment to be free of the intermediary's credit risk. We develop a framework that defines the roles of customers and investors in intermediaries, and use it to build an economic theory that has the following main findings. First, with positive net social surplus in the intermediary-customer relationship, the efficient (first best) contract completely insulates the customer from the intermediary's credit risk, thereby exposing the customer only to the risk inherent in the contract terms. Second, when intermediaries face financing frictions, the second-best contract may expose the customer to some intermediary credit risk, generating “customer contract fulfillment” costs. Third, the efficiency loss associated with these costs in the second best rationalizes government guarantees like deposit insurance even when there is no threat of bank runs. We further discuss the implications of this customer-investor nexus for numerous issues related to the design of contracts between financial intermediaries and their customers, the sharing of risks between them, ex ante efficient institutional design, regulatory practices, and the evolving boundaries between banks and financial markets.

CLO trading and collateral manager bank affiliation

Journal of Financial Intermediation 2019 39, 47-58 open access
This paper investigates whether the institutional affiliation of a collateralized loan obligation (CLO) manager influences the manager's access to information and risk appetite. We find that CLO managers affiliated with banks start to sell off their positions in loans arranged by their bank well before the onset of default. In contrast, CLO managers affiliated with nonbanks do not lower their exposures to distressed loans. These findings are consistent with bank-affiliated CLO managers being more risk averse, but they could also derive from them having access to valuable information. On close inspection, we find that although bank-affiliated CLO managers are averse to holding any distressed loans, they are also more aggressive at divesting distressed loans arranged by their parent bank, suggesting that they benefit from an information wedge. Besides helping us understand CLO managers’ trading activities, our findings highlight a potential limit to banks’ ability to originate loans and distribute them via their affiliated CLOs.