A note on a classical result in the collective risk theory

Abstract

In his paper “Über einige risikotheoretische Fragestellungen” (SAT 1942: 1–2, p. 43) C.-O. Segerdahl generalizes the theory of ruin probability ψ(u) to the case where interest is continuously added to the risk reserve u at the rate δ′.     

Investor overlap and diffusion of disclosure practices

I develop and test an investor demand-driven explanation for why one firm’s change in voluntary disclosure behavior is emulated by some firms in the industry but not others. I focus on the overlap in institutional investor ownership between two firms as a mechanism by which a first-mover firm’s increase in disclosure prompts investors to seek a similar increase from a follower firm. Using 10-K market risk disclosures as my empirical setting, I find that a firm’s decision to follow a first mover in providing more quantitative information than is required by the SEC is positively associated with an increase in investor overlap from the prior year. I also find that the association is stronger for overlap in large institutional investors, consistent with their greater influence over managers, and for firms where investor uncertainty is high. This association is found after controlling for the herding effect documented in prior studies and after addressing potential endogeneity concerns. Overall, this evidence provides new insight into patterns of intra-industry disclosure behavior and highlights investor overlap as a communication channel and feedback mechanism that helps facilitate the diffusion of disclosure practices.     

Stochastic frontier models with network selectivity

Worker peer-effects and managerial selection have received limited attention in the stochastic frontier analysis literature. We develop a parametric production function model that allows for worker peer-effects in output and worker-level inefficiency that is correlated with a manager’s selection of worker teams. The model is the usual “composed error” specification of the stochastic frontier model, but we allow for managerial selectivity (endogeneity) that works through the worker-level inefficiency term. The new specification captures both worker-level inefficiency and the manager’s ability to efficiently select teams to produce output. As the correlation between the manager’s selection equation and worker inefficiency goes to zero, our parametric model reduces to the normal-exponential stochastic frontier model of Aigner et al. (1977) with peer-effects. A comprehensive application to the NBA is provided.     

Macro Liquidity Risk,Money Growth,and the Cross-Section of Stock Returns: The Case of Korea

According to the homogeneity of money holding purpose, we decompose the broad money M2 into an underlying and a non-underlying part and propose innovations in future non-underlying M2 growth as a proxy for macro liquidity. In both the cross-sectional regression tests and the GMM tests, we find that risk related to innovations in future non-underlying M2 growth is strongly significantly priced in Korea, after controlling for the well-known risk factors and other macroeconomic variables. Meanwhile, risk related to innovations in future aggregate or underlying M2 growth is insignificantly priced. These results indicate that non-underlying M2 growth more directly affects macro liquidity than does aggregate or underlying M2 growth.     

Vertically integrated producer when a rival is also a customer: impact of demand uncertainty

When a vertically integrated producer (VIP) is also a supplier of a component for its rival firm, it was found that the profit in a decentralized structure is higher for the VIP than the profit in a centralized structure under deterministic demand. In contrast, we found that firms’ ordering decisions under uncertain demand can reverse this findings and it is more likely to happen as demand variability increases.     

The role of consideration sets in brand choice: The moderating role of product characteristics

This study investigates the role of consideration sets in brand choice. Brand‐level aggregated data are used to capture the responses of consumers who face a number of international and domestic brands in markets rather than two or three brands in experimental designs, as in Chaudhuri and Holbrook (2001). Empirical evidence from path analysis shows that the consideration set for hedonic products includes a smaller number of dominant brands, whereas the consideration set for utilitarian products includes more and diverse brands. The probability of being finally chosen from the consideration set differs according to product characteristics: hedonic vs. utilitarian. The authors discuss managerial implications and suggestions for future research. © 2009 Wiley Periodicals, Inc.     

Trade Intermediation and the Organization of Exporters

Empirical papers show that successful exporting firms either use unaffiliated foreign trade intermediaries or own foreign wholesale subsidiaries. However, conventional trade theory models assume that producers can directly access foreign consumers. We introduce intermediaries in an international trade model where producers differ with respect to productivity as well as regarding their varieties' perceived quality and tradability. Trade intermediation is prone to frictions owing to the absence of enforceable cross‐country contracts while own wholesale subsidiaries require additional capital investment. The sorting pattern of firms depends on their degree of competitive advantage; the equilibrium prevalence of intermediation in the industry depends negatively on the heterogeneity among producers, and the market‐specificity of goods, and positively on expropriation risk. Using sectoral US export data by destination country, we confirm the empirical validity of these predictions.     

Who goes where and how? Firm and country characteristics in the choice of FDI type and location

This paper examines the roles of firm and country characteristics in determining multinationals' choice of foreign direct investment (FDI) type and location. Using Korean firm‐level data, we find that highly productive firms are more likely than their less efficient counterparts to invest in tough markets and choose a combined FDI strategy rather than a solely horizontal FDI or vertical FDI strategy across host countries. These findings, consistent with recent theories in international economics, indicate that firm and country heterogeneities play a significant role in determining the FDI strategy of a multinational enterprise.     

How does workplace harassment influence the employees’ response in a deluxe hotel?

Recently, workplace harassment in the form of superiors abusing their power over subordinates has emerged as a social problem. In the deluxe hotel work environment, dealing with this issue starts by asking whether harassment by a superior has taken place – and if so, how it has influenced subordinates’ responses. The purpose of this study was to measure the perception of workplace harassment among employees and to explain the relationships between workplace harassment and employee engagement, satisfaction, burnout, and turnover intent in deluxe hotels in South Korea. The results showed that verbal aggression had a significant negative effect on employee engagement, while isolation, disrespectful behavior, and physical aggression exacerbated employee burnout. In addition, employee engagement significantly enhanced job satisfaction, while burnout increased employees’ turnover intent. Limitations and future research directions are also discussed.     

Online shoppers' response to price comparison sites

Customers' perceptions of price differ in the online environment due to the presence of price comparison sites. The purpose of this study is to examine how price comparison sites affect price and value perceptions of online shoppers across different product types and price consciousness levels of online shoppers. The results of the study indicate that the price information provided by an online price comparison site influences online shoppers' perceptions of internal reference prices. However, the influence of a price comparison site on value perception differs according to product type. As evidenced by the significant interaction effect between product type and price comparison site information, the presence of price comparison sites increases both transaction and acquisition value perceptions for the non-look-and-feel product category (e.g., notebook computers), but not for the look-and-feel product category (e.g., jeans). Contrary to the expectation, online shoppers' price consciousness influences their price and value perceptions independently of price comparison site information.