Stochastic reaction functions in 2 × 2 duopoly

A reaction function is a contingency plan that specifies how a firm will react to a move made by its competition. This includes the classical Cournot reaction function. Our stochastic reaction functions are the rules by which firms revise their prior distributions on their competitors' sets of actions. The asymptotic stability of a class of stochastic reaction functions is examined in this paper. It is shown that there exists a class of reaction functions that are either asymptotically stable in the Cournot-Nash sense or asymptotically Pareto optimal. Our analysis does not rely on differentiability and other assumptions traditionally imposed in the literature.     

Unglittering Gold Schemes in India

International Advances in Economic Research -     

The Role of Market Sentiment in Asset Allocations and Stock Returns

Abstract

The authors investigate the role of mutual fund flows in incorporating market sentiment into asset prices. They show that retail investors adjust their investments among mutual fund categories in response to changes in market sentiment. Consistent with sentiment-induced price pressure through fund flows, they further find that firms favored by mutual funds, such as large-cap, dividend payers, and firms with high institutional ownership are sensitive to market sentiment. The authors construct a pricing factor representing sentiment risk and find that the sentiment factor is significant in standard asset pricing models and robust to various sorting procedure.     

Bayesian inference and prediction in the single server Markovian queue

The use of stochastic models and performance measures for the analysis of real life queuing scenarios are based on the fundamental premise that parameters values are known. This is a rarity since more often than not, parameters are usually unknown and require to be estimated. This paper presents techniques for the same from Bayesian perspective. The queue we intend to deal with is the M/M/1 queuing model. Several closed form expressions on posterior inference and prediction are presented which can be readily implemented using standard spreadsheet tools. Previous work in this direction resulted in non-existence of posterior moments. A way out is suggested. Interval estimates and tests of hypothesis on performance measures are also presented.     

On two properties of an unequal probability sampling scheme

Summary For an inclusion probability proportional to size (IPPS) sampling scheme recently proposed by Saxena, Singh and Srivastava (1986), it is shown that under certain simple verifiable conditions (1) the Horvitz-Thompson (1952) estimator based on it has a smaller variance than the variance of the Hansen-Hurwitz (1943) estimator based on probability proportional to size (PPS) sampling with replacement (WR) both involving the same size-measures and the expected sample size in the former being equal to the number of draws in the latter and (2) the Yates-Grundy (1953) estimator for the variance of the Horvitz-Thompson estimator based on this IPPS scheme is uniformly non-negative.     

Understanding Retail Managers’ Role in the Sales of Products and Services

This research investigates the influence of retail chain-level activities (e.g., district supervisor directives and policies) and store manager behaviors on the sale of physical products versus services. Using data gathered within a U.S.-based retail automotive parts chain, the authors discover that to sell services, especially in competitive environments, store managers should focus on sales planning and transformative leadership behaviors, which accentuate both the long-term planning horizon and the effects of managerial actions. In less competitive environments though, a more transactional approach (e.g., selling orientation) can be effective for selling services. Alternatively, to sell products, store managers’ selling effort appears to be the most important driver of success, and a transformative leadership approach may be detrimental when the retailer faces a high level of direct competition. In total, the findings suggest that corporate chain activities, such as the level and clarity of store managers’ goals and supervisor monitoring, influence store manager behaviors, which in turn affect the sale of physical products and services.     

Corporate Social Responsibility and Farmer Suicides: A Case for Benign Paternalism?

Although arguments are a good way of exploring the limitations and complexities of a concept or a theory we may find ourselves faced with a real phenomenon that challenges the existing formulations of a concept or a theory so strongly and reveals its limitations to us so starkly that we are forced to break away from the current discussion and start anew. Such is the challenge posed by the phenomenon of farmer suicides on our existing theories of corporate social responsibility. Contemporary discussions in corporate ethics are replete with many theories of corporate social responsibility which in one way or the other rely on the concept of the social contract. For the most part these theories have gone unchallenged and no fundamental limitations have been revealed. However, the phenomenon of farmer suicides in central India poses a serious challenge to them. This article attempts to show how the phenomenon of farmer suicides in central India starkly exposes some of the fundamental limitations of the contractarian formulations of corporate social responsibility.     

A New Architecture for Personalization Engines: An Open Source Approach

There are many benefits in having personalized engines on a Web site. Several types of architecture have evolved to support this information system. Even though, a recent survey has shown that online shopping behavior is not altered by installing these systems on a Web site, enormous money is being spent on their use. These commercial personalization engines are very expensive to buy and are proprietary in nature. One alternative advocated in this article is to use a new architecture that follows an open source philosophy and uses a situation questions, problem questions, implication questions, need-payoff questions (SPIN) based question-answering strategy to interact with visitors. An implementation (called JESPER, a Jess-enabled personalization system) of such an architecture using JESS (Java-based expert system shell) is also presented. Our experience shows that personalization engines built this way for a Web site can be quite cheap and rigorous.     

A stochastic cellular automata model of innovation diffusion

A stochastic cellular automata model of new product diffusion is proposed. It is found that the growth for a given market potential can be determined by a parameter that quantifies chance preferences of individuals for the product and can be estimated from field surveys. It is also found that the “takeover time” in a given seed region is almost independent of the number of innovators. The results suggest possible strategies for the successful introduction of a new product.     

Personal Taxes and the underpricing of initial public offerings

The purpose of this paper is to propose an alternative explanation for the underpricing of initial public offerings (IPOs). The first section reviews the empirical evidence on underpricing IPOs in support of various alternative hypotheses that have been put forth in the literature. This is followed by our model which examines the effect of personal taxes paid by entrepreneurs on the choice of the issue price. We show that, in the presence of taxes and for certain levels of ownership retained by the entrepreneur, it may be preferable to underprice the issue. This theoretical result is reinforced by both the simulation and empirical tests.