CHANGES IN TRADING ACTIVITY FOLLOWING STOCK SPLITS AND THEIR EFFECT ON VOLATILITY AND THE ADVERSE-INFORMATION COMPONENT OF THE BID-ASK SPREAD

We examine changes in trading activity around stock splits and their effect on volatility and the adverse-information component of the bid-ask spread. Even after controlling for microstructure biases, we find a significant increase in volatility after the split. Changes in total volatility and in its permanent component are positively related to changes in the number of trades. This suggests that both informed and noise traders contribute to changes in trading activity. Further, while the adverse-information component of the spread increases unconditionally after the split, the change is negatively related to the change in trading activity. The results suggest that a crucial determinant of liquidity changes after a stock split is the success of the split in attracting new trades in the security.     

On the governance of “not being governed”

The Art of Not Being Governed illustrates that the people of highland South East Asia were not primitive people “left behind” but instead chose their lifestyles in order to avoid the predation of lowland states. This raises the question of how these people who are ungoverned by nation states provide governance for themselves. We explore this question with two related case studies. One examines a nineteenth century Southern Indian banking caste that provided self-governance. The other examines modern-day stateless Somalia.     

Toward a theory of managing context in Six Sigma process-improvement projects: An action research investigation

In this paper, field studies, extant literature, and domain knowledge are used to develop a theory of managing context in Six Sigma process-improvement projects. By means of a participatory action research investigation involving ten projects in manufacturing and service firms, this paper examines the interrelationship among project context, elements, and success. Rich text-based information for each project was analyzed for the underlying patterns and relationships using the NVIVO 8 qualitative data analysis software package. The insights gained from this in-depth field investigation are presented in the form of 12 inductively derived research propositions that, when taken together, uniquely contribute to context-based theory-building in this area.     

Intertemporal price discrimination with forward-looking consumers: Application to the US market for console video-games

Firms in durable good product markets face incentives to intertemporally price discriminate, by setting high initial prices to sell to consumers with the highest willingness to pay, and cutting prices thereafter to appeal to those with lower willingness to pay. A critical determinant of the profitability of such pricing policies is the extent to which consumers anticipate future price declines, and delay purchases. I develop a framework to investigate empirically the optimal pricing over time of a firm selling a durable-good product to such strategic consumers. Prices in the model are equilibrium outcomes of a game played between forward-looking consumers who strategically delay purchases to avail of lower prices in the future, and a forward-looking firm that takes this consumer behavior into account in formulating its optimal pricing policy. The model outlines first, a dynamic model of demand incorporating forward-looking consumer behavior, and second, an algorithm to compute the optimal dynamic sequence of prices given these demand estimates. The model is solved using numerical dynamic programming techniques. I present an empirical application to the market for video-games in the US. The results indicate that consumer forward-looking behavior has a significant effect on optimal pricing of games in the industry. Simulations reveal that the profit losses of ignoring forward-looking behavior by consumers are large and economically significant, and suggest that market research that provides information regarding the extent of discounting by consumers is valuable to video-game firms.

(Noisy) communication

Communication is central to many settings in marketing and economics. A focal attribute of communication is miscommunication. We model this key characteristic as a noise in the messages communicated, so that the sender of a message is uncertain about its perception by the receiver, and then identify the strategic consequences of miscommunication. We study a model where competing senders (of different types) can invest in improving the precision of the informative but noisy message they send to a receiver, and find that there exists a separating equilibrium where senders’ types are completely revealed. Thus, although communication is noisy it delivers perfect results in equilibrium. This result stems from the fact that a sender’s willingness to invest in improving the precision of their messages can itself serve as a signal. Interestingly, the content of the messages is ignored by the receiver in such a signaling equilibrium, but plays a central role by shaping her beliefs off the equilibrium path (and thus, enables separation between the types). This result also illustrates the uniqueness of the signaling model presented here. Unlike other signaling models, the suggested model does not require that the costs and benefits of the senders will be correlated with their types to achieve separation. The model’s results have implications for various marketing communication tools such as advertising and sales forces.

Role of explicit and tacit knowledge in Six Sigma projects: An empirical examination of differential project success

This research develops a conceptual model for predicting success of process improvement projects as a result of knowledge-creation practices employed in the projects. The model is empirically examined in the context of Six Sigma black belt projects. New scales are developed to measure explicit- and tacit-knowledge-creation practices in process improvement. Data is gathered via a cross-sectional sample, and the hypotheses are tested using hierarchical regression. Our results support the notion that knowledge-creation practices influence the success of process improvement projects. Specifically, the inclusion of softer, people-oriented practices for capturing tacit knowledge explains a significant amount of variance in project success, as much as the more analytically focused practices that capture explicit knowledge. This research offers practical insights about the influence of practices that project managers use to create new knowledge by capturing explicit and tacit knowledge, and seeks to advance theoretical understanding of process improvement.     

A note on health care inflation

A key issue in health care reform is the need to contain the inflation rate of the CPI for health care services without substantially reducing the quality of health care. Althought the previous literature has widely debated the causes of increasing inflation in the CPI for health care services, very little has been done to empirically test these arguments. We use an econometric framework that allows us to expressly examine the determinants of the inflation rate of the CPI for health care services. The data cover the period from 1960–1994. The main results provide empirical verification for many of the demand-side and supply-side theories of the inflation rate of the CPI for health care services that have been widely discussed in the literature.     

The determinants and effects of CEO–employee pay ratios

We study the determinants and effects of the relative compensation of top executives and lower-level employees. First, we show that CEO–employee pay ratios depend on the balance of power between the CEO (relative to the board) and ordinary employees (relative to management). Second, our results suggest that employees do not perceive higher pay ratios as an inequitable outcome to be redressed via costly behaviors that lower productivity. We do not find a negative relation between relative pay and employee productivity, either in our full sample or in subsamples where employees are well-informed about executive pay and are protected against career retributions. Rather, we find that productivity increases with relative pay when the firm has fewer employees who are well-informed, and when promotion decisions are predominantly merit-based. We also find that firm value and operating performance both increase with relative pay. We conclude that ordinary employees appear to perceive an opportunity in higher pay ratios but the extent to which such perception incentivizes them depends on the likelihood of success in a series of sequential promotion tournaments.     

Enterprise Resource Planning Systems Implementation in a Global Subsidiary Organization: Lessons Learned

This article describes the implementation of an enterprise resource planning (ERP) implemented by British Petroleum (BP) Worldwide, from the perspective of one of its subsidiary organizations, BP Singapore. The ERP solution, an internally developed system, was implemented globally by BP worldwide quite successfully from a global perspective, though not without challenges at the local level. This study examines the process of implementing a global ERP solution at the local subsidiaries, and the unique problems that may be encountered in force-fitting a global solution at the local level. Among the issues and problems experienced by the subsidiary are higher-than-anticipated costs, longer development times, lack of technical expertise, and compromises in business processes. The findings of the study could be helpful in formulating coping mechanisms in implementing global ERP solutions.     

The effectiveness of pre-release advertising for motion pictures: An empirical investigation using a simulated market

We use data on a movie’s stock price as it trades on the Hollywood Stock Exchange, a popular online market simulation, to study the impact of movie advertising. We find that advertising has a positive and statistically significant effect on expected revenues, but that the effect varies strongly across movies of different “quality”. The point estimate implies that the returns to advertising for the average movie are negative.