Pesticide Productivity and Transgenic Cotton Technology: The South African Smallholder Case

This paper empirically investigates how the productivity of pesticide differs in Bt versus non‐Bt technology for South African cotton smallholders, and what the implications for pesticide use levels are in the two technologies. This is accomplished by applying a damage control framework to farm‐level data from Makhathini flats, KwaZulu‐Natal. Contrary to findings elsewhere, notably China, that farmers over‐use pesticides and that transgenic technology benefits farmers by enabling large reductions in pesticide use, the econometric evidence here indicates that non‐Bt smallholders in South Africa under‐use pesticide. Thus, the main potential contribution of the new technology is to enable them to realise lost productivity resulting from under‐use. By providing a natural substitute for pesticide, the Bt technology enables the smallholders to circumvent credit and labour constraints associated with pesticide application. Thus, the same technology that greatly reduces pesticide applications but only mildly affects yields, when used by large‐scale farmers in China and elsewhere, benefits South‐African smallholder farmers primarily via a yield‐enhancing effect.     

Customer value,satisfaction, loyalty,and switching costs: An illustration from a business-to-business service context

Although researchers and managers pay increasing attention to customer value, satisfaction, loyalty, and switching costs, not much is known about their interrelationships. Prior research has examined the relationships within subsets of these constructs, mainly in the business-to-consumer (B2C) environment. The authors extend prior research by developing a conceptual framework linking all of these constructs in a business-to-business (B2B) service setting. On the basis of the cognition-affect-behavior model, the authors hypothesize that customer satisfaction mediates the relationship between customer value and customer loyalty, and that customer satisfaction and loyalty have significant reciprocal effects on each other. Furthermore, the potential interaction effect of satisfaction and switching costs, and the quadratic effect of satisfaction, on loyalty are explored. The authors test the hypotheses on data obtained from a courier service provider in a B2B context. The results support most of the hypotheses and, in particular, confirm the mediating role of customer satisfaction. Shun Yin Lam (asylam@ntu.edu.sg; fax: 65-6791-3697) is an assistant professor of marketing and international business in the Nanyang Business School at Nanyang Technological University in Singapore. Lam received his Ph.D. from the University of Western Ontario and has research interests in a number of areas including retail marketing, customer loyalty, and customers’ adoption and usage of technology. His work has appeared inMarketing Science, theJournal of Retailing, theInternational Journal of Research in Marketing, andAdvances in Consumer Research. Venkatesh (Venky) Shankar (vshankar@rhsmith.umd.edu) is Ralph J. Tyser Fellow and an associate professor of marketing in the Smith School of Business at the University of Maryland. His areas of research are e-business, competitive strategy, international marketing, pricing, new product management, and supply chain management. His research has been published or is forthcoming in theJournal of Marketing Research, Marketing Science, theJournal of Marketing, theStrategic Management Journal, theJournal of Retailing, theInternational Journal of Research in Marketing, theJournal of Public Policy and Marketing, andMarketing Letters. he is co-editor of theJournal of Interactive Marketing; associate editor ofManagement Science; and serves on the editorial boards ofMarketing Science, theJournal of Marketing, theInternational Journal of Research in Marketing, theJournal of Retailing, and theJournal of Academy of Marketing Science. He is a three-time winner of the Krowe Award for Outstanding Teaching and teaches Marketing Management, Digital Business Strategy, Competitive Marketing Strategy, and International Marketing (http://www.venkyshankar.com). M. Krishna Erramilli (amkerramilli@ntu.edu.sg) is an associate professor of marketing and international business in the Nanyang Business School at Nanyang Technological University in Singapore. He has undertaken many studies on marketing strategy issues in service firms, particularly in an international context, and has published his work in journals like theJournal of Marketing, theJournal of International Business Studies, theColumbia Journal of World Business, and theJournal of Business Research. He has presented numerous papers at international conferences. His current research interests center on the international expansion of Asia-based service firms. Bvsan Murthy (abmurthy@ntu.edu.sg) is an associate professor of marketing and international business in the Nanyang Business School at Nanyang Technological University in Singapore. Prior to turning to the academe a decade ago, he had 20 years of international industry experience. He has published in journals likeThe Cornell H.R.A. Quarterly and theInternational Journal of Contemporary Hospitality Management and has also written industry white papers/monographs and chapters in books. His current research interests center on strategic services marketing/management and customer value management.     

Household Food Insecurity and Maternal and Child Nutritional Status: Evidence from Maharashtra

In this paper we rigorously examine the association of household food security status with maternal and child nutritional status exploring a rich micro‐level database, the Comprehensive Nutrition Survey Maharashtra 2012. Using Household Food Insecurity Access Scale (HFIAS) as a metric to measure household food security, we apply simultaneous probit models to estimate the effect of food insecurity on maternal and child nutritional outcomes. The modelling framework addresses possible endogeneity in the above relationship. Findings indicate that household food insecurity increases the risk of maternal and child underweight with no effect on child stunting, wasting or maternal overweight. Women’s decision‐making power mediates these associations. Food security interventions should be effective in tackling the concerns with undernutrition, however, food alone is not the solution. A mix of nutrition‐specific and nutrition‐sensitive policies is warranted. Food security interventions should be integrated into policies for human development.     

ALTERNATIVE CHARACTERIZATIONS OF AMERICAN PUT OPTIONS

We derive alternative representations of the McKean equation for the value of the American put option. Our main result decomposes the value of an American put option into the corresponding European put price and the early exercise premium. We then represent the European put price in a new manner. This representation allows us to alternatively decompose the price of an American put option into its intrinsic value and time value, and to demonstrate the equivalence of our results to the McKean equation.     

Do market characteristics impact the relationship between retailer characteristics and online prices?

We propose that market characteristics interact with retailer characteristics to determine online prices. The retailer characteristics examined include—service quality of a retailer, channels of transaction provided by a retailer and the size of a retailer. The market characteristics capture the level and nature of competition, and the price level of a product. We utilize a Hierarchical Linear Model (HLM) framework for capturing and testing the proposed interactions. The better fit between the model and the online market structure is reflected by a twenty-five percent increase in explainable price dispersion over results from comparable studies. Our study demonstrates that while retailer characteristics do impact online prices, this influence is significantly enhanced or diminished by the accompanying market characteristics.     

Strategic and Ethical Considerations in Managing Digital Privacy

Individualized customer information is at the heart of on-line commerce. Using increasing amounts of customer-specific data enhances the success and value of one-to-one on-line marketing; but the extensive gathering and use of data specific to individuals also causes alarm over the loss of digital privacy, setting up a confrontation between e-commerce and society. Governments and nations, particularly in Europe, have reacted with a reliance on sweeping laws governing digital privacy protection while other nations such as the U.S. have generally preferred to allow companies and industry associations to regulate themselves. This tenuous balance is under attack from both sides. In this paper, we set up a framework which incorporates the environmental context, ethical perspectives and firm-specific considerations to help firms develop a strategy for handling digital privacy concerns.     

Inferring Market Structure from Customer Response to Competing and Complementary Products

We consider customer influences on market structure, arguing that market structure should explain the extent to which any given set of market offerings are substitutes or complements. We describe recent additions to the market structure analysis literature and identify promising directions for new research in market structure analysis. Impressive advances in data collection, statistical methodology and information technology provide unique opportunities for researchers to build market structure tools that can assist real-time marketing decision-making.     

Owners on both sides of the deal: mergers and acquisitions and overlapping institutional ownership

Using a corporate governance lens, this study considers owners with a stake in both the acquiring and the target firms in the context of mergers and acquisitions. A possible agency problem arises with regard to monitoring implications as managers may be able to take advantage of compromised monitoring because overlapping owners may focus on the aggregate value for both the acquiring and the target firms and nonoverlapping owners may be interested only in the acquirer's side of the deal. The results suggest that when more owners overlap in their ownership of both the acquiring and target firms, the acquiring firms are more likely to experience decreased shareholder value through merger and acquisition deals. This effect, however, can be constrained by stronger board control. Copyright © 2010 John Wiley & Sons, Ltd.