Employee mobility,noncompete agreements,product-market competition,and company disclosure

This study explores the impact on companies’ disclosures of U.S. states’ different propensities to enforce noncompete agreements. I find a negative association between a state’s enforcement of noncompete agreements and disclosure activities of firms headquartered in that state. Companies that face local rivals drive some results. Analyses that focus on several state-level changes in enforcement level of noncompete agreements confirm this association. Overall, the findings are consistent with a higher enforcement of noncompete agreements increasing proprietary costs of disclosure, because companies in high-enforcement settings are less informed about each other due to reduced information leakage from employee transfers across competitors. The results suggest that the overall environment for information spillovers surrounding a firm impacts its degree of disclosure to the capital markets and that state-specific enforcement of noncompete agreements can be used as a novel measure of the proprietary costs of disclosure.     

The profit effects of product-market growth strategy: A financial services example

The paper presents an empirical examination of the relationship of an organisation's growth strategy to performance. The study includes a sample of chief executive officers in the financial services sector, specifically credit unions. In particular, the relationship of product-market growth strategy to profitability is investigated while also controlling for firm size and the perceived environment. The authors find that product growth strategy has no impact on profits but that market growth strategy does significantly affect profitability. In particular, those firms that emphasise new markets in their growth strategies are the highest performers and are significantly more profitable than credit unions that emphasise growth through either emphasis of products, current markets, or both current and new markets.     

Performance maximization of actively managed funds

A growing literature suggests that, even in the absence of any ability to predict returns, holding options on the benchmarks or trading frequently can generate positive alpha. The ratio of alpha to its tracking error appraises a fund's performance. This paper derives the performance-maximizing strategy, which turns out to be a variant of a buy-write strategy, and the least upper bound on such performance enhancement. If common equity indices are used as benchmarks, the potential alpha generated from trading frequently can be substantial in magnitude, but it carries considerable risk. The statistical significance in estimated alpha is low, and the probability of a negative alpha is high. The performance enhancement from holding options can be significant - both economically and statistically - if the options' implied volatilities are higher than the volatilities of the benchmark returns. The performance-maximizing strategy derived in this paper is different from the strategies that switch portfolio exposure to the benchmarks. The exposure-switching strategies are not promising unless the switching is based on superior information.     

Exponential utility maximization under partial information

We consider the exponential utility maximization problem under partial information. The underlying asset price process follows a continuous semimartingale and strategies have to be constructed when only part of the information in the market is available. We show that this problem is equivalent to a new exponential optimization problem which is formulated in terms of observable processes. We prove that the value process of the reduced problem is the unique solution of a backward stochastic differential equation (BSDE) which characterizes the optimal strategy. We examine two particular cases of diffusion market models for which an explicit solution has been provided. Finally, we study the issue of sufficiency of partial information.     

Asset pricing under quantile utility maximization

“Focus on the downside, and the upside will take care of itself” is a famous quote among professional investors. By considering an agent who follows this advice, we reproduce the first and second moments of stock returns, risk-free rate and consumption growth. The agent's behavior toward risk is analogous to a relative risk aversion of about 3 under expected utility, the elasticity of intertemporal substitution is about 0.5 and the time discount factor is below 1. In particular, the proposed model separates time and risk preferences in an innovative way.     

Capital budgeting using residual income maximization

This analysis provides theoretical support for the use of residual income. Economic theory states that capital investment should maximize the present value of incremental cash flow. When a firm is decentralized, coordinating the necessary information to determine optimal investment in the short run may be impossible. But the residual income maximizing choice can be coordinated using a simple transfer-pricing system. Under appropriate capitalization and depreciation policies, the residual-income maximization policy leads the firm to make suboptimal short-run investment decisions, yet these decisions still lead the firm to its long-run, presentvalue-maximizing capacity level.Funding for this study was provided by grants from the Arthur Andersen & Co. Foundation and the National Science Foundation.     

论企业价值最大化与科学发展——学习支行行长培训班课程有感

文章研究企业价值最大化与科学发展问题。     

Hedging and competition

We consider firms that, all else equal, wish to minimize variability in their internal capital (due to convex costs of raising external funds). The firms can hedge the cash flow risk of the project, but not that of winning or losing the auction. We characterize optimal hedging and bidding strategies in this competition framework. We show that access to financial markets makes firms bid more aggressively, possibly even above their valuation for the project. In addition, hedging increases the variance of bids and makes firm values more dispersed. Further, with hedging, the covariance of internal capital changes with the risk factor is negative, and is more negative, the higher the correlation of the hedging instrument with the risk factor.     

Robust utility maximization for complete and incomplete market models

We investigate the problem of maximizing the robust utility functional . We give the dual characterization for its solution for both a complete and an incomplete market model. To this end, we introduce the new notion of reverse f-projections and use techniques developed for f-divergences. This is a suitable tool to reduce the robust problem to the classical problem of utility maximization under a certain measure: the reverse f-projection. Furthermore, we give the dual characterization for a closely related problem, the minimization of expenditures given a minimum level of expected utility in a robust setting and for an incomplete market.Received: September 2004, Mathematics Subject Classification (2000): 62C20, 62O05, 91B16, 91B28JEL Classification: D81, G11I thank Hans Föllmer for his help when writing this paper. Furthermore, I thank Alexander Schied for discussing the topic with me and Michael Kupper and the referees for their helpful remarks.     

Multivariate utility maximization with proportional transaction costs

We present an optimal investment theorem for a currency exchange model with random and possibly discontinuous proportional transaction costs. The investor’s preferences are represented by a multivariate utility function, allowing for simultaneous consumption of any prescribed selection of the currencies at a given terminal date. We prove the existence of an optimal portfolio process under the assumption of asymptotic satiability of the value function. Sufficient conditions for this include reasonable asymptotic elasticity of the utility function, or a growth condition on its dual function. We show that the portfolio optimization problem can be reformulated in terms of maximization of a terminal liquidation utility function, and that both problems have a common optimizer.     

Wealth-path dependent utility maximization in incomplete markets

Motivated by an optimal investment problem under time horizon uncertainty and when default may occur, we study a general structure for an incomplete semimartingale model extending the classical terminal wealth utility maximization problem. This modelling leads to the formulation of a wealth-path dependent utility maximization problem. Our main result is an extension of the well-known dual formulation to this context. In contrast with the usual duality approach, we work directly on the primal problem. Sufficient conditions for characterizing the optimal solution are also provided in the case of complete markets, and are illustrated by examples.Received: December 2003, Mathematics Subject Classification (2000): 91B28, 91B16, 49N15, 49N30JEL Classification: G11The authors would like to thank the anonymous referees for their remarks and suggestions which greatly improved this paper. We also thank participants at the Oberwolfach workshop in 2003 for comments and discussions.     

Stability of utility maximization in nonequivalent markets

Stability of the utility maximization problem with random endowment and indifference prices is studied for a sequence of financial markets in an incomplete Brownian setting. Our novelty lies in the nonequivalence of markets, in which the volatility of asset prices (as well as the drift) varies. Degeneracies arise from the presence of nonequivalence. In the positive real line utility framework, a counterexample is presented showing that the expected utility maximization problem can be unstable. A positive stability result is proved for utility functions on the entire real line.     

Banking competition and welfare

We develop a simple general equilibrium model in which investment in a risky technology is subject to moral hazard and banks can extract market power rents. We show that more bank competition results in lower economy-wide risk, higher social welfare, lower bank capital ratios, more efficient production plans and Pareto-ranked real allocations. Perfect competition supports a second best allocation and optimal levels of bank risk and capitalization. These results are at variance with those obtained by a large literature that has studied a similar environment in partial equilibrium, they are empirically relevant, and carry significant implications for policy guidance.     

Foreign competition and acquisitions

I provide evidence on the impact of foreign competition on firms' propensities to engage in mergers and acquisitions. Using import tariff reductions as exogenous shocks that increase foreign competition, I find that affected firms are more likely to make acquisitions following tariff reductions. Cross-sectional tests show that this association is more pronounced for single segment firms, capital intensive firms, firms with higher profit margins, and firms with better growth opportunities, which suggests that this association is stronger for firms that are affected by increased competition to a greater extent and firms that stand to gain more from acquisitions when faced with increased competition. Moreover, the positive relation between acquisition propensities and tariff cuts is more pronounced for financially unconstrained firms and during times of high capital liquidity, which implies that it is easier for firms with greater access to capital to respond to increases in foreign competition by making acquisitions. Finally, I find some evidence that the acquisitions made in response to tariff decreases are associated with better firm profitability ratios in the following year, indicating that firms respond to increased competition by making acquisitions to improve their operational efficiency.     

Corporate social responsibility and stakeholder value maximization: Evidence from mergers

Using a large sample of mergers in the US, we examine whether corporate social responsibility (CSR) creates value for acquiring firms' shareholders. We find that compared with low CSR acquirers, high CSR acquirers realize higher merger announcement returns, higher announcement returns on the value-weighted portfolio of the acquirer and the target, and larger increases in post-merger long-term operating performance. They also realize positive long-term stock returns, suggesting that the market does not fully value the benefits of CSR immediately. In addition, we find that mergers by high CSR acquirers take less time to complete and are less likely to fail than mergers by low CSR acquirers. These results suggest that acquirers' social performance is an important determinant of merger performance and the probability of its completion, and they support the stakeholder value maximization view of stakeholder theory.