Forecasting category sales and market share for wireless telephone subscribers: a combined approach

The ability to forecast market share remains a challenge for many managers especially in dynamic markets, such as the telecommunications sector. In order to accommodate the unique dynamic characteristics of the telecommunications market, we use a multi-component model, called MSHARE. Our method involves a two-phase process. The first phase consists of three components: a projection method, a ring down survey methodology and a purchase intentions survey. The predictions from these components are combined to forecast category sales for the wireless subscribers market. In the second phase, market shares for the various brands are generated using the forecast of the number of subscribers that are obtained in Phase 1 and the share predictions from the ring down methodology. The proposed methodology produces the minimum Relative Absolute Error for each market as compared to the forecasts from each individual component in the first phase. The value of the proposed model is illustrated by its application to a real world scenario. The managerial implications of the proposed model are also discussed.     

Ponds,Power and Institutions: The Everyday Governance of Accessing Urban Water Bodies in a Small Bengali City

While researchers in the growing field of urban political ecology have given significant attention to the fragmented hydroscape that characterizes access to drinking water in the global South, so far the (re)production of other urban waters and its related power relations have been underexplored. This article seeks to contribute to filling this gap by exploring the everyday negotiations over access to urban water bodies, in particular ponds. These are understood as a composite resource that is simultaneously water, land and public space. This analysis draws on a case study from a small city in West Bengal, India, and is based primarily on data from open interviews with different actors with a stake in urban ponds. The article demonstrates that in a context of ambiguity of the statutory governance regime and fragmented control, the (re)production of the pondscape is embedded within complex relationships of power whereby social marginalization can be offset at least momentarily by local institutions such as neighbourhood clubs and political parties.     

On a generalization of a class of production functions

In Appl. Econ. Lett. 18 (2011), 1777–1784, as a natural generalization of some famous production models with two inputs, C.A. Ioan and G. Ioan introduced a new class of production functions with constant return to scale, called sum production function, and proved three theorems of characterization for such production models. In this article, we give new and more simple proofs of these theorems, extending also the results to the case of increased/decreased return to scale. The generalization to the case of an arbitrary number of inputs is also discussed.     

Acceptance of Accounting Standards

When financial statements are audited, a client and auditor may disagree about an accounting disclosure. While the disclosure of such a disagreement may increase the information content of a statement it may also be socially undesirable in that it signals a difference in views about the state of the reporting enterprise. This in turn may increase agency costs and introduce uncertainty about the state of the firm. In this paper we focus on public policy implications concerning auditor-client disagreements and examine the ex ante probability that such cases will occur. We find that accounting standards that allow two accounting options may be optimal in reducing frequency of disagreements among auditors and between standard-setters and their constituencies, and possibly also between clients and their auditors. The New Zealand model of compliance with accounting standards may be preferable to that practiced in the US.     

Information handling in consumer decisions

Interviews with consumers, controlled exposures to varied messages, and before and after measures regarding exposure provided data for this study. Tendency to actively search for information was influenced by demographic factors of education and sex. The use made of information was primarily determined by personality factors. Search and information use were also influenced by source and message factors and by product class differences. Finally, source, message, and product class affected the nature of the purchase decision process.