Good-Deal Option Price Bounds for a Non-Traded Event with Stochastic Return: A Note

Cochrane and Sa'a-Requejo (2000, Journal of Political Economy) proposed the good-deal price bounds for the European call option on an event that is not a traded asset, but is correlated with a traded asset that can be used as an approximate hedge. One remarkable feature of their model is that the return on an event process explicitly appears in the option price bounds formula, which offered a contrast with the standard option pricing model. We show that the good-deal option price bounds on a non-traded event are obtained as a closed-form formula, when the return on an event is governed by a mean reverting process.     

Towards a Semigroup Pricing Theory

In an arbitrage-free economy, there will always exist a set of linear operators which map future contingent dividends of securities into their current prices. It happens that such operators will also form an “evolution semigroup” as a consequence of intertemporal analysis of the no-arbitrage restriction. This paper summarizes some of the major implications of the semigroup properties, but avoids almost all of the technical discussion which underlies them. Instead, several practical examples are presented. Some well-known continuous-time results are replicated by this alternative method, and certain new developments are explored.     

Towards a Theory of Cultural Influence on the Development of Accounting Systems Internationally

Research has shown that accounting follows different patterns in different parts of the world. There have been claims that national systems are determined by environmental factors. In this context, cultural factors have not been fully considered. This paper proposes four hypotheses on the relationship between identified cultural characteristics and the development of accounting systems, the regulation of the accounting profession and attitudes towards financial management and disclosure. The hypotheses are not operationalized, and empirical tests have not been carried out. They are proposed here as a first step in the development of a theory of cultural influence on the development of accounting systems.     

系统金融理论:未来金融理论研究范式的演化方向——兼现代金融理论、行为金融理论、系统金融理论比较

金融理论的研究范式随着相关科学的发展而不断革新。系统科学能够全面有效解决非线性、复杂性、动态性问题,20世纪80年代系统科学理论逐步应用于金融研究中。为发展金融理论、指导金融实践,有必要构建完善的系统科学范式下的金融理论体系。系统金融理论采用非线性、复杂性和系统动力学的方法,能够更加准确地揭示金融系统的演化规律,因而较现代金融理论和行为金融理论更加接近于实际情况,是金融理论研究范式未来的发展方向。     

货币政策框架理论的一般分析

本文深入分析货币政策目标、物价稳定和货币政策框架三者之间的关系以及在中国的适用问题,期望为中国货币政策框架的改革提供一定的理论依据。     

Competition in Lending: Theory and Experiments*

A variation of the Rothschild-Stiglitz’ equilibrium is examined in the context of competitive lending under adverse selection. The predictions of the model are tested in an experimental market setting. If equilibrium exists, the loan contracts offered and taken should separate projects by quality. When equilibrium exists, the experiments confirm the theory. The entrepreneurs with high-risk projects take bigger loans and pay higher credit spreads than those with low-risk projects. When equilibrium does not exist, which happens exactly when the candidate equilibrium does not provide a Pareto-optimal allocation, in half of the sessions loan trading stabilizes around the candidate equilibrium pair. In the other half, however, markets never settle down. This finding has important implications. When lenders can offer menus of contracts, as is usually the case in reality, the outcome may not be the zero-profit separating contracts of the standard model. Worse, fitting the standard model to field data may lead to serious biases in estimated parameters while falsely accepting the model’s main restriction (separation). *The financial support of the Division of Humanities and Social Sciences at Caltech is gratefully acknowledged. I would like to thank Charles Plott, Thomas Palfrey, Bill Zame, Mike Lemmon, as well as the seminar participants at Caltech, UCSD, Duke, Berkeley, Stanford, University of Utah, Columbia, Georgia State University, Tulane, University of Houston, and Arizona State University for helpful comments, and the staff of EEPS, SSEL, and CASSEL for their help in running the experiments. I am especially grateful to my advisor and mentor Peter Bossaerts for his guidance and encouragement. All errors are my own.     

The Theory and Practice of Corporate Risk Management*

The financial crisis of 2008 and the resulting recession caught many companies unprepared and, in so doing, provided a stark reminder of the importance of effective risk management. While academic theory has long touted the benefits of risk management, companies have varied greatly in the ways and extent to which they put theory into practice. Drawing on a global survey of over 300 CFOs of non‐financial companies, the authors report that while most CFOs felt that their risk management programs have significant benefits, the risk management function in general needs more attention. A large percentage of the finance executives surveyed acknowledged that the most important corporate risks extend far beyond the CFO's direct reports, and that risk‐based thinking is not incorporated into everyday business activities or corporate strategies. A large majority of executives also said they were seeking a more widespread understanding of risk throughout their organizations—and many confessed their firms' inability, or lack of interest, in evaluating their own risk management functions. At the same time, the efforts of most companies to develop enterprise‐wide risk management (ERM) programs were said to fall well short of the comprehensive and highly coordinated programs envisioned by the proponents of such programs. Three areas of opportunity were clearly identified as having potential to improve corporate risk management in ways that increase firm value over an entire business cycle:

• ? Incorporate risk management thinking into the strategic planning process. Line executives, and not just technicians, need to be sensitive to risks, thereby building flexibility into the firm's business plan and its execution.
• ? Clearly define the objectives of the risk management function, in part by developing appropriate benchmarks. The risk management process should be subject to the same rigorous evaluation process that is used when measuring risks throughout the business.
• ? Instill a risk management culture throughout the organization. While an effective risk management function is necessary, only when employees at all levels of the company embrace risk management as part of their daily operations will the firm get maximum value from risk management.

     

A Theory of Workouts and the Effects of Reorganization Law*

We present a model of a financially distressed firm with outstanding bank debt and public debt. Coordination problems among public debtholders introduce investment inefficiencies in the workout process. In most cases, these inefficiencies are not mitigated by the ability of firms to buy back their public debt with cash and other securities-the only feasible way that firms can restructure their public debt. We show that Chapter 11 reorganization law increases investment, and we characterize the types of corporate financial structures for which this increased investment enhances efficiency.     

Conditioning Information and Variance Bounds on Pricing Kernels with Higher- Order Moments: Theory and Evidence

We develop a strategy for utilizing higher moments, variancerisk premia, and conditioning information efficiently, and henceimprove on the variance bounds computed by Hansen and Jagannathan(1991); Gallant, Hansen, and Tauchen (1990); and Bekaert andLiu (2004). Our bounds reach existing bounds when nonlinearitiesin returns are not priced. We also use higher moments, variancerisk premia, and conditioning information to provide distancemeasures that improve on the Hansen and Jagannathan (1997) distancemeasure. Empirical results indicate that when accounting forthe impact of higher moments and variance risk premia, the existingpricing kernels have difficulty in explaining returns on theassets and derivatives.     

Regulation in Housing Finance: Bringing Theory to Policy*

The Journal of Real Estate Finance and Economics -     

向市场化冲刺--评证监会发审制度改革

发行制度与退市制度就如同一个水池的进水口和出水口。要提高上市公司整体质量,过滤进水口同疏通出水口一样重要。     

Towards a general theory of bond markets

The main purpose of the paper is to provide a mathematical background for the theory of bond markets similar to that available for stock markets. We suggest two constructions of stochastic integrals with respect to processes taking values in a space of continuous functions. Such integrals are used to define the evolution of the value of a portfolio of bonds corresponding to a trading strategy which is a measure-valued predictable process. The existence of an equivalent martingale measure is discussed and HJM-type conditions are derived for a jump-diffusion model. The question of market completeness is considered as a problem of the range of a certain integral operator. We introduce a concept of approximate market completeness and show that a market is approximately complete iff an equivalent martingale measure is unique.     

Towards a meta-theory of accounting information systems

The purpose of this paper is to articulate a model for accounting information systems (AIS) research that synthesizes the primary theoretical perspectives of the extant literature. Building on the three orientations used in prior research (technological, organizational and cognitive approaches) and adopting an explicit systems perspective, we develop a model that links system design alternatives to the three orientations and to task performance. The model places a central focus on the accounting task and suggests a matching process between requirements of the task and system design alternatives at multiple levels of analysis. We also demonstrate how the application of the model suggests future research opportunities, organized around four research propositions.     

Towards a new technology future approach

In order to anticipate technological futures of Building Management Systems (BMS), many methods can be identified. However, people often focus on the results of these studies relating to new products. Undoubtedly it is easier to agree on conclusions of a study than on methods used to carry it out. Thus, answering several methodological issues, we develop a new technological future method named ‘CLE’ (complexity, logic, evolution). This one relies on three main ways to answer particularly the problems of complexity of any studied field, inaccuracy and uncertainty of available data, and representation of technological development.CLE leads to the developement of a two-level model. A microscopic level is based on biological metaphors to represent the evolution of populations of products. By a macroscopic approach, we call upon the dynamics of complex systems and fuzzy logic, which gives a representation of the environment of products. Then, the through link with the two levels in a global model simulates the relationships between the environment and the population of products. In order to illustrate this approach, we apply it with the modelization of BMS.     

Bounds for Functions of Dependent Risks

The problem of finding the best-possible lower bound on the distribution of a non-decreasing function of n dependent risks is solved when n=2 and a lower bound on the copula of the portfolio is provided. The problem gets much more complicated in arbitrary dimensions. When no information on the structure of dependence of the random vector is available, we provide a bound on the distribution function of the sum of risks which we prove to be better than the one generally used in the literature.