Abstract

This article analyses the identification and empirical content of the pure moral hazard (PMH) and the hybrid moral hazard (HMH) principal–agent models. The PMH model has hidden actions, while the HMH model has hidden information in addition to hidden actions. In both models, agents are risk averse and principals are risk neutral. The article derives the equilibrium restrictions from the optimal contract and uses the restrictions to show that the models have empirical content. For any given risk-aversion parameter, the models' other parameters are non-parametrically point identified. The risk-aversion parameter—and hence the model—are, however, only partially identified. Management's ability to manipulate accounting reports arises endogenously within HMH models, but not in all versions of PMH models. We use our framework to investigate whether shareholders contract with management recognizing that accounting reports are susceptible to manipulation and, therefore, endogenous to the incentives offered to management. The data reject all models in which accounting reports are verifiable. Furthermore, the version of the PMH in which accounting reports can be manipulated is rejected if expected compensation is restricted to be positive.

Highlights

  • The principal-agent model is the main theoretical underpinning for why managers are compensated with stocks, options and bonuses instead of a ‡at salary: Asymmetric information considerations are prevalent in the market for top managers of ...rms with dispersed ownership

  • We derive the equilibrium restrictions from optimal contracting to predict the shape of the compensation schedule and fully characterize the empirical content of these models

  • The closest paper to ours is Perrigne and Vuong (2011). They showed that static contract models with adverse selection and moral hazard are nonparametrically point identi...ed, yet our results show that the pure moral hazard (PMH) and hybrid moral hazard (HMH) models are only set identi...ed

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Summary

Introduction

The principal-agent model is the main theoretical underpinning for why managers are compensated with stocks, options and bonuses instead of a ‡at salary: Asymmetric information considerations are prevalent in the market for top managers of ...rms with dispersed ownership. A handful of papers have speci...ed, estimated and conducted welfare analysis of executive-compensation contracting models (e.g., Margiotta and Miller, 2000; Gayle and Miller, 2009a,b; Gayle, Golan, and Miller, 2014; Li, 2013), but none analyzes the identi...cation and empirical content of the standard paradigm for this literature, where agents are risk averse and principals are risk neutral. The closest paper to ours is Perrigne and Vuong (2011) They showed that static contract models with adverse selection and moral hazard are nonparametrically point identi...ed, yet our results show that the PMH and HMH models are only set identi...ed. The set identi...cation results in this paper imply that the PMH models in Margiotta and Miller (2000) and Gayle and Miller (2009b) achieve point identi...cation from the functional form assumptions: that the distribution of output and the likelihood ratio are derived from a truncated normal parent distribution and that risk preferences are constant over time. Preferences over time are compatible with the HMH model but not the PMH model, and the estimates of the nonpecuniary bene...ts to the manager from shirking are very sensitive to assumptions about hidden information

Pure Moral Hazard
A Benchmark Model
Hybrid Moral Hazard
Theoretical Framework
Extensions
A Dynamic PMH Model
A Dynamic HMH Model
An Empirical Application
Motivation and Data
Empirical Results
Conclusion
A Proofs of Theorems and Lemmas
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