On moral hazard and nonexclusive contracts

We study an economy where intermediaries compete over contracts in a nonexclusive insurance market affected by moral hazard. In this context, we show that, contrarily to what is commonly believed, market equilibria may fail to be efficient even if the planner is not allowed to enforce exclusivity of trades (third best inefficiency). Our setting is the same as that of Bisin and Guaitoli [Bisin, A., Guaitoli, D., 2004. Moral hazard with nonexclusive contracts. Rand Journal of Economics 2, 306–328]. We hence argue that some of the equilibrium conditions they imposed are not necessary, and we exhibit a set of equilibrium allocations which fail to satisfy them.     

Competing mechanism games of moral hazard: communication and robustness

We consider multiple-principal multiple-agent models of moral hazard: principals compete through mechanisms in the presence of agents who take unobservable actions. In this context, we provide a rationale for restricting principals to make use of simple mechanisms, which correspond to direct mechanisms in the standard framework of Myerson (J Math Econ 10:67–81, 1982). Our results complement those of Han (J Econ Theory 137(1):610–626, 2007) who analyzes a complete information setting where agents’ actions are fully contractible.     

Securitization and optimal retention under moral hazard

Securitization improves liquidity in capital markets by allowing originators to remove issued loans from its balance sheet and use the proceeds for other purposes. Securitization is often suspected of being one of the main reasons for the recent financial crisis. One concern is that securitization leads to moral hazard in lender screening and monitoring. By selling loans to investors and removing them from their books, banks have a lesser incentive to carefully evaluate and monitor borrowers’ credit quality to ensure that they can repay their loans. One problem in the literature is that the analysis of securitization is very general and suffers from a lack of specific security design analysis under asymmetric information. We address the moral hazard problem using a principal–agent model where the investor is the principal and the lender is the agent. We show that the optimal contract must contain a retention clause in the presence of moral hazard. The optimal retention is affected by tranching and credit enhancement.     

Contracting under ex post moral hazard and non-commitment

This paper characterizes the optimal insurance contract in an environment where an informed agent can misrepresent the state of the world to a principal who cannot credibly commit to an auditing strategy. Because the principal cannot commit, the optimal strategy of the agent is not to tell the truth all the time. Assuming that there are T > 1 possible losses, and that the agent cannot fake an accident (he is constrained only to misreport the size of the loss when a loss occurs), the optimal contract is such that higher losses are over-compensated while lower losses are on average under-compensated. The amount by which higher losses are over-compensated decreases as the loss increases. The optimal contract may then be represented as a simple combination of a deductible, a lump-sum payment and a coinsurance provision.Received: 29 January 1999, Accepted: 26 June 2001, JEL Classification: D82, G2, C72.I would like to thank my dissertation committee Stanley Baiman, David Cummins, Georges Dionne, Neil Doherty and Sharon Tennyson (supervisor) for their insights, as well as Keith Crocker, Steve Coate, Richard Derrig, Michele Piccone and Pascale Viala. The financial help received during my doctoral studies from the Social Sciences and Humanities Research Council of Canada (SSHRC) and the S. S. Huebner Foundation are gratefully acknowledged. This research has been funded by the Fonds pour la Formation de Chercheurs et d'Aide à la Recherche (FCAR-Québec), SSHRC-Canada and the Risk Management Chair at HEC Montréal. The continuing financial support of CIRANO is also appreciated. I am responsible for all errors.     

Optimal securities under adverse selection and moral hazard

We consider project financing under adverse selection and moral hazard and derive several interesting results. First, we provide an explanation of why good firms issue both debt and underpriced equity (even if the bankruptcy and agency costs of debt are zero). Second, we show that, in the presence of moral hazard, adverse selection may induce the conversion of negative into positive NPV projects leading to an improvement in social welfare. Third, we provide a rationale for the use of warrants. We also show that a debt–warrant combination can implement the optimal contract. Our results have a number of testable implications.     

Misperceptions,moral hazard and incentives in groups

Recent work has shown that, in the presence of moral hazard, balanced-budget Nash equilibria in groups are not Pareto-optimal. This work shows that when agents misperceive the effects of their actions on the joint outcome there exist a set of sharing rules which balance the budget and lead to a Pareto-optimal Nash equilibrium.     

Capital market equilibrium with moral hazard and flexible technology

(Magill, M., Quinzii, M., 2002. Capital market equilibrium with moral hazard. Journal of Mathematical Economics 38, 149–190) showed that, in a stockmarket economy with private information, the moral hazard problem may be resolved provided that a spanning overlap condition is satisfed. This result depends on the assumption that the technology is given by a stochastic production function with a single scalar input. The object of the present paper is to extend the analysis of Magill and Quinzii to the case of multiple inputs. We show that their main result extends to this general case if and only if, for each firm, the number of linearly independent combinations of securities having payoffs correlated with, but not dependent on, the firms output is equal to the number of degrees of freedom in the firm’s production technology.     

Deposit insurance subsidies,moral hazard,and bank regulation

The model developed in the paper separates deposit insurance subsidies into two components: a premium-linked subsidy which arises from an ex-ante mispricing of the deposit insurance premium, and an asset-linked subsidy which arises from a lack of ex-post monitoring of the bank's actions. The identification of these two subsidies provides important insight into the relation between deposit-insurance subsidies and bank risk. The asset-linked subsidy is higher for banks of average risk and lower for very-high and very-low risk banks. The premiumlinked subsidy behaves differently under risk-adjusted and fixed-rate premiums. The model also indicates that the implementation of a riskadjusted insurance-rate schedule alone would not be sufficient to eliminate the bank's excessive risk-taking behavior. Thus, some combination of risk-sensitive deposit-insurance pricing and regulatory control is necessary to reduce the moral hazard problem.     

On the value of information in the presence of moral hazard

This paper shows that the marginal value of a “small amount of non-output information” is generally non-positive in the context of the standard principal-agent model involving moral hazard, which suggests a non-concavity in the value of information. However, when both the principal and the agent are risk neutral, even a small amount of non-output information may exhibit a positive incremental value in presence of a liability constraint.      

Dispersed initial ownership and the efficiency of the stock market under moral hazard

We generalize a standard general equilibrium framework extended for moral hazard to allow for a dispersed initial ownership distribution of firms. We show that the market allocation is constrained-efficient only when in each firm the entrepreneur who generates payoffs through unobservable effort has full initial ownership in his firm.     

Optimal deterministic contracting mechanisms for principal-agent problems with moral hazard and adverse selection

For the principal-agent problem with moral hazard and adverse selection we establish that within the collection of all measurable, deterministic contracting mechanisms satisfying the individual rationality and incentive compatibility constraints there exists one that is optimal for a risk averse principal contracting with a risk averse agent. In addition to demonstrating existence, one of the main contributions of the paper is to show that, in general, centralized contracting implemented via a contracting mechanism is equivalent to delegated contracting implemented via a contract menu. Thus, contracting can always be delegated to the agent without gain or loss to the principal. Based on this result, the existence of an optimal contracting mechanism for the principal-agent problem is established by showing that there exists an optimal contract menu for the equivalent delegated contracting problem. Received: 7 October 1994 / Accepted: 14 January 1997     

Migrant wages,remittances and recipient labour supply in a moral hazard model

This paper analyzes the interaction between migrants’ income and remittances and between remittances and the labour supply of residents. The model is cast as a two-period game with imperfect information about the residents’ real economic situation. Residents subject to a good economic situation may behave as if they were in a poor economic situation only in order to manipulate remitters’ expectations. The latter, being aware of this risk, reduce the remitted amount accordingly. Therefore, in the equilibrium, residents who really are victims of the bad economic outlook are penalized as compared to the perfect information set-up. In some circumstances, they can signal their type by drastically cutting working hours, thus further enhancing their precarity right when their economic situation is the worst.     

Optimal wage contracts under asymmetric information and moral hazard when investment decisions are delegated

I derive an optimal wage contract when risky investment decisions are delegated by riskaverse owners/investors to risk-neutral agents. The owners/investors do not know the probability distribution over the returns of any investment made by an agent. They know only the mean and the variance, and the upper and lower bounds of the return realizations of the different positive net present value (NPV) investment opportunities that can be discovered by their agents. They observe only the returns realized at the end of the period. Moral hazard with respect to investments made by agents, who are protected by limited liability, is also possible: an agent can falsely claim to have invested in one type of positive NPV investment opportunity and invest in another, or the agent can falsely claim to have invested in a positive NPV investment and invest in a negative NPV investment. I show that an optimal wage contract is simple under such conditions of severe asymmetric information and moral hazard. (JEL G20, G31)     

库存管理中的安全技术

持有合适的安全库存是企业在成本节约和满足客户需求间的权衡,因此确定合适的安全库存量对于企业甚至整个供应链来说都非常重要。文章研究了确定安全库存时需要注意的三个事项:一是需要区分周期服务水平CSL和产品补给率fr;二是区分季节性库存与安全库存;三是需要重视少数异常值的发现和对安全库存的影响。     

Determinants of moral hazard in research and development supply relations: Empirical results beyond the agency‐theory explanation

Moral hazard can hinder both the realization and the effectiveness of research and development (R&D) supply relations. However, to the best of our knowledge, there have been no empirical studies investigating the determinants of moral hazard under the specific circumstances of R&D supply relations. Based on a study on 104 cases, this article will help to fill that gap. The results not only confirm information asymmetries as determinants, as predicted by principal‐agent theory, but also reveal surprising effects of additional factors. Thus, we show that the general explanation of moral hazard needs to be adapted to the specifics of a concrete exchange situation.     

基于协同安全策略的网络安全管理平台之设计与构建

文章设计了一种可以动态实现和设置安全要素的网络安全管理平台NetSecu,有效管理生产网络中的各种安全要素。每个NetSecu节点都是基于Java和Click模块化路由器构建的。通过运用这一组合,可以动态实现、禁用或升级运行时的安全要素。性能评估显示,NetSecu可以为常用的网络安全管理平台提供足够的性能。     

Organization HRD and technology: towards a bureaucratic theory of strategic control

In this study, an investigation is conducted of the relationships between technology and training as attributes of strategic control. It is argued that, when the means of production become more technology oriented, smaller firms will be more ready to train and develop existing workers. Larger firms, by contrast, may tend to emphasize training but more of a generic type rather than ‘tailor made’.     

网上银行安全管理问题研究

网上银行服务的迅猛发展,使其安全管理问题也越来越引起银行管理层和金融消费者的关注。本文分析了网上银行安全管理存在的问题及由此造成的操作风险,并有针对性地提出了加强网上银行安全管理的建议。     

企业安全信息管理平台的设计和实现

在全球化的趋势之下,企业之间也呈现出激烈的竞争,只有不断提高企业的风险管理,加强安全信息管理,才能保证企业在国际竞争之中立于不败之地。文章首先对安全信息管理进行简单的阐述,分析企业存在的现状及问题,针对这些问题,提出了安全信息管理平台的设计方案,并对其实现过程进行了深入分析,以期对我国企业的有利发展提供借鉴意义。