How Does Industry Affect Firm Financial Structure?

We examine the importance of industry to firm-level financialand real decisions. We find that in addition to standard industryfixed effects, financial structure also depends on a firm’sposition within its industry. In competitive industries, a firm’sfinancial leverage depends on its natural hedge (its proximityto the median industry capital–labor ratio), the actionsof other firms in the industry, and its status as entrant, incumbent,or exiting firm. Financial leverage is higher and less dispersedin concentrated industries, where strategic debt interactionsare also stronger, but a firm’s natural hedge is not significant.Our results show that financial structure, technology, and riskare jointly determined within industries. These findings areconsistent with recent industry equilibrium models of financialstructure.     

Pythagorean generalization of testing the equality of two symmetric positive definite matrices

We provide a new test for equality of two symmetric positive-definite matrices that leads to a convenient mechanism for testing specification using the information matrix equality or the sandwich asymptotic covariance matrix of the GMM estimator. The test relies on a new characterization of equality between two $k$ dimensional symmetric positive-definite matrices $A$ and $B$: the traces of $A{B}^{?1}$ and $B{A}^{?1}$ are equal to $k$ if and only if $A=B$. Using this simple criterion, we introduce a class of omnibus test statistics for equality and examine their null and local alternative approximations under some mild regularity conditions. A preferred test in the class with good omni-directional power is recommended for practical work. Monte Carlo experiments are conducted to explore performance characteristics under the null and local as well as fixed alternatives. The test is applicable in many settings, including GMM estimation, SVAR models and high dimensional variance matrix settings.     

Revisiting the European Horsemeat Scandal: The Role of Power Asymmetry in the Food Supply Chain Crisis

This study explores the role of power asymmetry in the food supply chain, especially in relation to the channel conflict, and ultimate breakdown that culminated in the infamous European horsemeat scandal across Europe. Drawing upon the power‐dependency, and to some extent, social exchange theory, the study posits that mutual dependence between single supplier–multiple buyer relationships where major retailers are the weaker partners, may require a revisitation of risk management practices in that sector. In addition to the fraudulent and unethical practices established from media reporting on the horsemeat scandal, the study argues that the power asymmetry/imbalance may have contributed to a supplier culture that tolerated the unethical decision making leading to the horsemeat scandal. Based on an extensive review of secondary data sources comprising media reports on the scandal and a review of the academic literature on power dependency and social exchange theories, the study attempts to map out the root of the crisis, how to forestall future recurrence, and the managerial and policy implications of these. © 2016 Wiley Periodicals, Inc.     

Personalien

Personalien

Personalien     

Robust tests of forward exchange market efficiency with empirical evidence from the 1920s

This paper provides a robust statistical approach to testing the unbiasedness hypothesis in forward exchange market efficiency studies. The methods we use allow us to work explicitly with levels rather than differenced data. They are statistically robust to data distributions with heavy tails, and they can be applied to data sets where the frequency of observation and the futures maturity do not coincide. In addition, our methods allow for stochastic trend non-stationarity and general forms of serial dependence. The methods are applied to daily data of spot exchange rates and forward exchange rates during the 1920s, which marked the first episode of a broadly general floating exchange rate system. The tail behaviour of the data is analysed using an adaptive data-based method for estimating the tail slope of the density. The results confirm the need for the use of robust regression methods. We find cointegration between the forward rate and spot rate for the four currencies we consider (the Belgian and French francs, the Italian lira and the US dollar, all measured against the British pound), we find support for a stationary risk premium in the case of the Belgian franc, the Italian lira and the US dollar, and we find support for the simple market efficiency hypothesis (where the forward rate is an unbiased predictor of the future spot rate and there is a zero mean risk premium) in the case of the US dollar.     

Communicating the health effects of consumer products: The case of moderate alcohol consumption and coronary heart disease

Moderate consumption of alcoholic beverages (MAC) has been estimated to significantly reduce the risk of myocardial infarction. This paper examines effective ways to communicate this information to guide individuals and their physicians, who must weight personal benefits and costs when deciding about drinking. It argues that presenting a scalar representation of the effect, life years saved, is much more effective than the ways such information is currently communicated. A simulation using data from the Framingham Heart Study and a conservative estimate of the effect of MAC calculates age-specific gains in mortality, and survival gains from MAC. They are roughly 0.75 and 0.63 years, respectively, for men and women ages 21–50. Any MAC decision should weigh the benefits of cardiac risk reduction against possible financial, lifestyle or offsetting health costs.