Journal of Financial Stability20128(4), 292-302open access
This paper investigates the dynamics between key regulatory and supervisory policies and various aspects of commercial bank efficiency and performance for a sample of 22 EU countries over 2000–2008. In the first stage of the analysis we measure efficiency by employing the Data Envelopment Analysis (DEA) technique. In addition, we employ two distinct accounting ratios to capture the costs of intermediation (net interest margin) and cost effectiveness (cost-to-income ratio). Our regression framework includes truncated regressions and generalized linear models. Moreover, we carry out a sensitivity analysis for robustness using a fractional logit estimator. Our results show that strengthening capital restrictions and official supervisory powers can improve the efficient operations of banks. Evidence also indicates that interventionist supervisory and regulatory policies such as private sector monitoring and restricting bank activities can result in higher bank inefficiency levels. Finally, the evidence produced suggests that the beneficial effects of capital restrictions and official supervisory powers (interventionist supervisory and regulatory policies) on bank efficiency are more pronounced in countries with higher quality institutions.
Review of Economic Studies201279(2), 678-706open access
This paper analyses the possibility and the consequences of rational bubbles in a dynamic economy where financially constrained firms demand and supply liquidity. Bubbles are more likely to emerge, the scarcer the supply of outside liquidity and the more limited the pledgeability of corporate income; they crowd investment in (out) when liquidity is abundant (scarce). We analyse extensions with firm heterogeneity and stochastic bubbles.
Journal of Accounting and Economics201253(1-2), 466-487open access
We examine relations between board size, managerial incentives and enterprise performance in nonprofit organizations. We posit that a nonprofit's demand for directors increases in the number of programs it pursues, resulting in a positive association between program diversity and board size. Consequently, we predict that board size is inversely related to managerial pay-performance incentives and positively with overall organization performance. We find empirical evidence consistent with our hypotheses. The number of programs is positively related to board size. Board size is associated negatively with managerial incentives, positively with program spending and fundraising performance, and negatively with commercial revenue, in levels and changes.
Journal of Financial Stability20128(3), 138-149open access
We explore the dynamics of default cascades in a network of credit interlink-ages in which each agent is at the same time a borrower and a lender. When some counterparties of an agent default, the loss she experiences amounts to her total exposure to those counterparties. A possible conjecture in this context is that individual risk diversification across more numerous counterparties should make also systemic defaults less likely. We show that this view is not always true. In particular, the diversification of credit risk across many borrowers has ambiguous effects on systemic risk in the presence of mechanisms of loss amplifications such as in the presence of potential runs among the short-term lenders of the agents in the network.
[We show that familiarity affects the portfolio decisions of mutual fund managers. Controlling for fund location, funds overweight stocks from their managers' home states by 12% compared with their peers. In team-managed funds, home-state overweighting is 37% larger than the fund location effect. The home-state bias is stronger if the manager is inexperienced, is resource-constrained, or spent more time in his home state. Home-state stocks do not outperform other holdings, confirming that home-state investments are not informed. The overweighting also leads to excessively risky portfolios.]
We investigate whether quarterly earnings guidance by corporate takeover targets is associated with acquisition premiums. Regulators have expressed recurring concerns that quarterly guidance is associated with a misallocation of resources because it encourages management to focus on excessively short-term horizons. If so, firms providing quarterly guidance represent an acquisition opportunity for non-guiding firms because acquired resources can be redeployed towards more productive long-term uses. Based on prior research that finds value created by acquisitions accrues primarily to target shareholders, we predict that an expected increase in value from the termination of guidance will be observed in acquisition premiums. We find that, after controlling for the other determinants of acquisition gains, the premium paid for an acquired corporation is associated with the target's practice of issuing quarterly earnings guidance. Consistent with our prediction, we find that no incremental premium is paid to acquire guiding targets when the bidding firm also provides guidance.
Journal of Accounting Research201250(3), 685-727open access
In deciding how much information about their firms’ customers to disclose, managers face a trade off between the benefits of reducing information asymmetry with capital market participants and the costs of aiding competitors by revealing proprietary information. This paper investigates the determinants of managers’ choices to disclose information about their firms’ customers using a comprehensive data set of customer‐information disclosures over the period 1976–2006. We find robust evidence in support of the hypothesis that proprietary costs are an important factor in firms’ disclosure choices regarding information about large customers.
The paper introduces the problem of unawareness into principal–agent theory and discusses optimal incentive contracts when the agent may be unaware of her action space. Depending on the agent's default behaviour, it can be optimal for the principal to propose an incomplete contract (that keeps the agent unaware) or a complete contract. The key trade-off is that of enlarging the agent's choice set versus adding costly incentive constraints. If agents differ in their unawareness, optimal contracts show a self-reinforcing pattern: if there are few unaware agents in the economy optimal contracts promote awareness, if unawareness is wide spread optimal contracts shroud the contracting environment, thus keeping the agent unaware.