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Macroprudential regulation and the monetary transmission mechanism

Journal of Financial Stability 2014 13, 44-63
The paper presents a simple dynamic macroeconomic model of a bank-dominated financial system that captures some of the key credit market imperfections commonly found in middle-income countries. The model is used to analyze the interactions between monetary and macroprudential policies, involving, in the latter case, changes in reserve requirements. In addition to a qualitative analysis, a calibrated version is used to study numerically the transitional dynamics and steady-state effects of an increase in the reserve requirement ratio, under alternative parameter values. The analysis shows that understanding how these tools operate is essential because they may alter, possibly in substantial ways, the monetary transmission mechanism.

Banking systemic vulnerabilities: A tail-risk dynamic CIMDO approach

Journal of Financial Stability 2014 14, 81-101 open access
This study proposes a novel framework which combines marginal probabilities of default estimated from a structural credit risk model with the consistent information multivariate density optimization (CIMDO) methodology and the generalized dynamic factor model (GDFM) supplemented by a dynamic t-copula. The framework models banks’ default dependence explicitly and captures the time-varying non-linearities and feedback effects typical of financial markets. It measures banking systemic credit risk in the three forms categorized by the European Central Bank: (1) credit risk common to all banks; (2) credit risk in the banking system conditional on distress on a specific bank or combinations of banks; and (3) the buildup of banking system vulnerabilities over time which may unravel disorderly. In addition, the estimates of the common components of the banking sector short-term and conditional forward default measures contain early warning features, and the identification of their drivers is useful for macroprudential policy. Finally, the framework produces robust out-of-sample forecasts of the banking systemic credit risk measures. This paper advances the agenda of making macroprudential policy operational.

Investing in a Global World

Review of Finance 2014 18(2), 561-590 open access
Abstract We examine active retail mutual funds and institutional products with a mandate to invest in global equity markets. We find little reliable evidence of alphas in the aggregate or on average. The right tail of the distribution contains some large alphas. Decomposing stock selection from country selection, we find some evidence of superior stock picking abilities in the extreme right tail. However, simulations suggest that they are produced just as likely by luck as by skill. Persistence tests show little evidence of continuation in superior performance.

The puzzling behavior of short sellers around earnings announcements

Journal of Financial Intermediation 2014 23(2), 255-278
We examine the performance of ‘predictive’ and ‘reactive’ short sellers who take relatively large short positions immediately before and after quarterly earnings announcements, respectively. While both types short into advancing markets, it is surprising for reactive shorts since their trades are in stocks that just announced unexpected good news and thus, according to the post-earnings announcement drift anomaly, will subsequently have abnormally high cumulative returns. Nevertheless, we find that for both types of short sellers: (1) subsequent cumulative returns are significantly negatively related to the amount of abnormal short selling, suggesting they are informed, and (2) relative to non-earnings dates, the subsequent returns around earnings announcements are significantly more negative, indicating they appear to be adept at exploiting earnings announcements. Surprisingly, we find that the subsequent returns of reactive short sellers are significantly greater than those of predictive short sellers except for S&P 500 stocks, perhaps due to their greater analyst following. Importantly, we are left with two puzzles. First, reactive shorts would have significantly improved their performance had they based their trades on the size of standardized unexpected earnings (‘SUE’). Second, predictive shorts of Micro stocks would have significantly improved their performance had they simply waited until earnings were announced and then based their trades on SUE.

CEO age and the riskiness of corporate policies

Journal of Corporate Finance 2014 25, 251-273
Prior theoretical work generates conflicting predictions with respect to how CEO age impacts risk-taking behavior. Consistent with the prediction that risk-taking behavior decreases as CEOs become older, I document a negative relation between CEO age and stock return volatility. Further analyses reveal that older CEOs reduce firm risk through less risky investment policies. Specifically, older CEOs invest less in research and development, make more diversifying acquisitions, manage firms with more diversified operations, and maintain lower operating leverage. Further, firm risk and the riskiness of corporate policies are lowest when both the CEO and the next most influential executive are older and highest when both of these managers are younger. Although older CEOs prefer less risky investment policies, I document results suggesting that CEO and firm risk preferences tend to be aligned. Lastly, I find that a trading strategy that goes long in a portfolio of stocks consisting of firms managed by younger CEOs and short in a portfolio of stocks comprised of firms led by older CEOs would generate positive risk-adjusted returns. Overall, my results imply that CEO age can have a significant impact on risk-taking behavior and firm performance.

Common Errors: How to (and Not to) Control for Unobserved Heterogeneity

Review of Financial Studies 2014 27(2), 617-661
Controlling for unobserved heterogeneity (or “common errors”), such as industry-specific shocks, is a fundamental challenge in empirical research.This paper discusses the limitations of two approaches widely used in corporate finance and asset pricing research: demeaning the dependent variable with respect to the group (e.g., “industry-adjusting”) and adding the mean of the group's dependent variable as a control. We show that these methods produce inconsistent estimates and can distort inference. In contrast, the fixed effects estimator is consistent and should be used instead. We also explain how to estimate the fixed effects model when traditional methods are computationally infeasible.

The Impact of Recognition Versus Disclosure on Financial Information: A Preparer's Perspective

Journal of Accounting Research 2014 52(3), 671-701 open access
ABSTRACT We investigate whether recognition on the face of the financial statements versus disclosure in the footnotes influences the amount that financial managers report for a contingent liability. Using an experiment with corporate controllers and chief financial officers, we find that financial managers in public companies expend more cognitive effort and exhibit less strategic bias under recognition than disclosure. This difference appears to be associated with capital market pressures experienced by public company managers as we find that both the cognitive effort and bias exhibited by private company managers are unaffected by placement. As a result, public company managers make higher liability estimates for recognized versus disclosed liabilities. Their liability estimates are similar to those of private company managers for recognition but lower than private company managers’ estimates for disclosure. Our results have implications for auditors and financial statement users in evaluating recognized versus disclosed information for public and private companies.

Bargaining and Reputation in Search Markets

Review of Economic Studies 2014 81(1), 1-29
This article considers a two-sided search market where firms and workers are paired to bargain over a unit surplus. The matching market serves as an endogenous outside option for the agents. The market includes inflexible commitment types who demand a constant portion of any match surplus. The frequency of such types is determined in equilibrium.An equilibrium where there are significant delays in reaching an agreement and where negotiations occasionally break down on the equilibrium path is constructed. Such an equilibrium exists and commitment types affect bargaining dynamics even if the equilibrium frequency of such types is negligible. If the inflows of firms and workers into the market are symmetric, then bargaining involves two-sided reputation building and reputation concerns lead to delays and inefficiency. Access to the market exacerbates bargaining inefficiencies caused by inflexible types. If the inflows of workers and firms are sufficiently asymmetric, then bargaining involves one-sided reputation and commitment types determine the terms of trade.

International Diversification Benefits with Foreign Exchange Investment Styles

Review of Finance 2014 18(5), 1847-1883 open access
Abstract Style-based management of the foreign exchange (FX) component of international investments with carry trade, FX momentum, and FX value strategies provides economically large and significant diversification benefits. These speculative benefits go beyond the hedging benefits of FX risk documented in the earlier literature. Our results hold after transaction costs and are confirmed in an extensive out-of-sample experiment mimicking investor decisions in real time. Adding a composite FX style portfolio to diversified allocations of global bonds and stocks leads to a 64% increase in the out-of-sample Sharpe ratio from 0.64 to 1.05, without adverse impact on other portfolio characteristics such as skewness.