The Valuation of Stock Purchase Rights as Call Options

The predictability of rights valuation models is tested, viewing the rights as call options. The results show that rights valuation models, on average, overprice the rights. The bias in the model prices of rights found in this paper is opposite to that predicted by Merton. Among several factors considered, possible volatility changes associated with raising capital through a rights offering account for some of the observed pricing deviation. A further regression analysis shows that while the pricing deviation is positively related to both the degree that the rights are in the money and the allocation ratio, it is negatively related to the time to expiration and the daily trading volume of the rights.     

Product survival analysis for the App Store

We empirically analyze both free and paid products on the top 100 Free and Grossing charts in the Korea App Store using Weibull parametric survival analysis on the product level. The findings are as follows: First, influences of ranking, customer ratings, and contents size on product survival are different for free and paid products. Customer ratings and contents size critically affect product survival when the price is zero. Second, the early entrant advantage exists in App Store, which results from a ranking system in the App Store and consumer learning. However, the effect of early entrant advantage differs between the Free and Grossing charts; the benefit of early entrant advantage is greater on the Free chart than that on the Grossing chart. Finally, we provide a competitive profit model that is related to free products.     

Product Market Competition and Lobbying Coordination in the U.S. Mobile Telecommunications Industry

This paper empirically investigates market behavior and firms?? lobbying in a unified structural setup. In a sequential game, where firms lobby for regulation before they compete in the product market, we derive a testable measure of lobbying coordination. Applying the setting to the early U.S. cellular services industry, we find that lobbying expenditures, as measured by campaign contributions, and market conduct were consistent with a one-shot Nash equilibrium and that price caps were binding on average. Furthermore, campaign contributions from cellular firms effectively lowered the burden of the price caps and reduced production costs.     

Assessment of the environmental sustainability of restaurants in the U.S.: The effects of restaurant characteristics on environmental sustainability performance

ABSTRACT

This paper investigated the current levels of environmental sustainability in restaurants across the U.S. to determine whether a restaurant’s proclivity for environmental sustainability depended on its characteristics such as chain affiliation or restaurant type.

A web-based survey was administered to 2,500 top-level restaurant managers, from which a total of 218 responses were judged as usable. The data were analyzed using independent

sample t-tests and ANOVA. This study presents an in-depth account of the environmental sustainability in restaurants across the U.S. based on an evaluation of top-level managers. This study also highlights the differences in restaurant environmental sustainability across different restaurant segments.     

Weak identification robust tests in an instrumental quantile model

We develop a testing procedure that is robust to identification quality in an instrumental quantile model. In order to reduce the computational burden, a multi-step approach is taken, and a two-step Anderson–Rubin (AR) statistic is considered. We then propose an orthogonal decomposition of the AR statistic, where the null distribution of each component does not depend on the assumption of a full rank of the Jacobian. Power experiments are conducted, and inferences on returns to schooling using the Angrist and Krueger data are considered as an empirical example.     

A Stochastic Receding Horizon Control Approach to Constrained Index Tracking

This paper develops stochastic receding horizon control for a constrained index tracking problem. By modeling the asset dynamics in the problems as a linear system subject to state and control multiplicative noise, and approximating linear chance constraints with quadratic expectation constraints, we show that index tracking can be approached using stochastic receding horizon control. In particular, we use a closed loop version of stochastic receding horizon control where the on-line optimization is solved as a semi-definite program. Numerical examples demonstrate the computations involved in these problems and indicate that stochastic receding horizon control is a promising new approach to constrained index tracking. C. H. Sung completed this work while he was a graduate student in the Management Science and Engineering Department, Stanford University.     

Factors contributing to business actions in response to climate change in Korea

Climate change is a growing problem and has been highlighted as a global issue. Empirical evidence increasingly indicates its obvious potential risks to humans and society. As members of this society, business organizations face greatly diverse climate change-related risks that they must recognize and respond to. However, gaps exist between scientific evidence and the actions of business organizations. Few empirical studies have examined the business organizations’ actions taken in response to climate change in Korea. This paper addresses this critical gap in the climate change literature by examining business organizations’ behaviors and identifying the factors influencing their actions. We employ statistical models to compare corporate climate change actions, and we explain their variations using survey data. The results indicate that despite increasing concerns about climate change, businesses have implemented very limited precautionary mitigation and adaptation actions. In addition, the concerns of the businesses about future climate change impact, organizational capacity (leadership, staff capacity, existence of a relevant division or department), and business size are significant factors with respect to the implementation of climate change actions.     

Cultural attributes and risk perception: the moderating role of different types of research and development

Drawing on the grid–group culture theory, this study examines hypotheses to explain how the cultural attributes of an organization influence professionals’ perceptions of risk in the context of research and development (R&D) activities. Specifically, we explore whether two dimensions of cultural attributes – the grid dimension and the group dimension – affect organizational commitment and risk perception. We also investigate whether the impact of the cultural attributes on risk perception is mediated by organizational commitment and whether different types of R&D activities – applied research and developmental research – serve as a moderating variable on the relationships among cultural attributes, organizational commitment, and risk perception. The partial least squares method was used to analyze data collected from full-time senior researchers with over five years of experience at a large technology institute. Our findings indicate that cultural attributes influence the risk perception of R&D professionals through the mediating function of organizational commitment. Further, we found that different types of R&D activities have moderating effects on the relationship between organizational commitment and risk perception.