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Low investment and large LDC debt in the 1980s

American Economic Review 1993
This paper aims at disentangling the correlation between LDC debt and investment in the 1980s. The author shows that a large debt was not an unconditional predictor of low investment in the 1980s, nor was investment abnormally low when compared to a 'financial-autarky' rate calculated in the text. He does find, however, that the actual service of the debt crowded out investment. For the rescheduling countries, he shows that 1 percent of GDP paid abroad reduced domestic investment by 0.3 percent of GDP. This is identical to the correlation between investment and foreign finance observed in the 1960s. Copyright 1993 by American Economic Association.

A note on analysts’ earnings forecast errors distribution

Journal of Accounting and Economics 2003 36(1-3), 147-164
Abarbanell and Lehavy provide evidence that analysts’ forecast errors are not normally distributed exhibiting a high occurrence of extreme negative forecast errors (left-tail asymmetry) and a high occurrence of small positive forecast errors (middle asymmetry). This is important for researchers who rely on techniques that are sensitive to the distributional assumptions of analysts’ forecast errors. Many of the conclusions drawn by Abarbanell and Lehavy, however, are based on visual impressions (as opposed to formal empirical tests) or based on methods that are very sensitive to the empirical methods used (e.g., whether the serial correlation of forecast errors is caused by the left-tail asymmetry).

Accrual-based and real earnings management activities around seasoned equity offerings

Journal of Accounting and Economics 2010 50(1), 2-19
We show that SEO firms engage in real activities manipulation, and the decline in post-SEO performance due to the real activities management is more severe than that due to accrual management. Our evidence is important, because it shows that post-SEO operating underperformance is driven not just by accrual reversals, but also reflects the real consequences of operational decisions made to manage earnings. We also show how firms’ choices of real versus accrual-based earnings management activities around SEOs vary predictably as a function of the firm's ability to use accrual management and the costs of doing so.

Corporate Governance Reform and Executive Incentives: Implications for Investments and Risk Taking

Contemporary Accounting Research 2013 30(4), 1296-1332
We investigate the mechanism through which the Sarbanes Oxley Act ( SOX ) was associated with changes in corporate investment strategies. We document that the passage of the governance regulations in SOX was followed by a significant decline in pay‐performance sensitivity (Delta) and incentives to take risk (Vega) in CEO s' compensation contracts. These changes in compensation contracts are related to a decline in investments, including research and development expenditures, capital investments and acquisitions. Moreover, consistent with the rules in SOX directly affecting CEO s' incentives to take risk, we document that the decline in investments exceeds the amount that would be expected from changes in compensation packages alone. Finally, we also find evidence that the changes in investments are related to lower operating performances of firms, suggesting that these changes were costly to investors. Our evidence speaks to the debate on how corporate governance regulation interacts with firms' and managers' incentives, and ultimately affects corporate operating and investment strategies. Our study suggests that one indirect cost of such regulations in SOX is the significant reductions in corporate risk‐taking activities in the post‐ SOX period. The changes in investments were in part due to changes in executive compensation contracts and in part related to increased executives' personal costs of engaging in risky activities.

How Should Control Theory Be Used to Calculate a Time-Consistent Government Policy?

Review of Economic Studies 1988 55(2), 263
We study different solutions to a simple one-dimensional linear quadratic game with a large number of private agents and a government. A “time-consistent” solution is defined as a solution to the Hamilton-Jacobi-Bellman equation, i.e. as a policy for which the government has noprecommitment capability. This solution is compared to a policy where the government has an “instantaneous” pre-commitment, i.e. an equilibrium in which the government has a period by period leadership. In both cases, we show how control theory should be applied to calculate the equilibrium and how to relate these equilibria to the differential game literature.

Earnings announcement premia and the limits to arbitrage

Journal of Accounting and Economics 2007 43(2-3), 153-180
We examine the factors underlying the presence of earnings announcement premia. We find that the premia persist beyond the sample period examined in prior studies (ending in 1988), although they decline in magnitude after 1988. Further, premia are lower on the expected than the actual earnings announcement dates. We document that increases in voluntary disclosures result in lower premia, despite the increase in return volatility over time. Finally, our evidence suggests that the premia are not completely eliminated because of the costs of arbitrage.

Real and Accrual-Based Earnings Management in the Pre- and Post-Sarbanes-Oxley Periods

The Accounting Review 2008 83(3), 757-787
We document that accrual-based earnings management increased steadily from 1987 until the passage of the Sarbanes-Oxley Act (SOX) in 2002, followed by a significant decline after the passage of SOX. Conversely, the level of real earnings management activities declined prior to SOX and increased significantly after the passage of SOX, suggesting that firms switched from accrual-based to real earnings management methods after the passage of SOX. We also document that the accrual-based earnings management activities were particularly high in the period immediately preceding SOX. Consistent with these results, we find that firms that just achieved important earnings benchmarks used less accruals and more real earnings management after SOX when compared to similar firms before SOX. In addition, our analysis provides evidence that the increases in accrual-based earnings management in the period preceding SOX were concurrent with increases in equity-based compensation. Our results suggest that stock-option components provide a differential set of incentives with regard to accrual-based earnings management. We document that while new options granted during the current period are negatively associated with income-increasing accrual-based earnings management, unexercised options are positively associated with income-increasing accrual-based earnings management.