Economic analysis of different options in integrated pest and soil fertility management in maize systems of Western Kenya

The major biotic constraints to the production of maize, the major staple food in Western Kenya, are field pests such as Striga and stem borers, and low soil fertility. To counter these constraints, new cropping systems have been developed, including “push‐pull,” rotations with promiscuous soybean varieties and green manure crops, and imidazolinone resistant‐ (IR‐) maize. To analyze the technical and economic performance of these technologies, both with and without fertilizer, on‐farm researcher‐managed long‐term trials were implemented over six seasons in two sites each in Vihiga and Siaya districts of Western Kenya. The economic results, based on marginal analysis using a multioutput, multiperiod model, show that the new cropping systems with fodder intercropping (push‐pull) or soybean rotations were highly profitable. Push‐pull is more profitable but requires a relatively high initial investment cost. Green manure rotation, IR‐maize, and fertilizer all increased yields, but these investments were generally not justified by their increased revenue. We argue that research on rotation and cropping systems to tackle pest and soil fertility problems in Africa deserve more attention. This will require increased collaboration between agronomists and economists to set up long‐term experiments with new cropping systems to develop proper economic models.     

Post-normal science and the rhetoric of inquiry: deconstructing normal science?

Post-normal science is an attempt to increase the problem-solving capacity of scientific work in a context of ‘soft' scientific inputs and ‘hard' policy decisions. The discourse on rhetoric in science can contribute to a better understanding of the problems and potentials of such an effort. The inclusion of ‘extended peer communities' is a case in point of the usefulness of rhetoric for an enterprise that wants to go beyond the normal science of puzzle-solving. The critical potential of rhetoric should be utilized. The distinction between internal and external rhetoric highlights the problematic relationship between scientific and political work, for example in the field of environmental issues.     

Ethical, Legal and Economic Aspects of Employer Monitoring of Employee Electronic Mail

This paper examines ethical, legal and economic dimensions of the decision facing employers regarding whether it is appropriate to monitor the electronic mail (e-mail) communications of its employees. We review the question of whether such monitoring is lawful. Recent e-mail monitoring cases are viewed as a progression from cases involving more established technologies (i.e., phone calls, internal memoranda, faxes and voice mail).The central focus of the paper is on the extent to which employer monitoring of employee e-mail presents a structure of costs and benefits to the employer which are unlikely to make such a practice profitable or practical to the employer. The practice of employer monitoring to detect illicit employee behavior (e.g., fraud, harassment of fellow employees, industrial espionage) is considered.It is argued that not only does such monitoring behavior fall short of the standard imposed by Kant's categorical imperative for ethical behavior, monitoring also fails to meet Aristotle's ethical standard of practical wisdom. Other ethical aspects of employer monitoring are considered.     

The Relationship Between Discrepancies Defined on a Domain and on its Subset

The discrepancy is an important optimality criterion for experimental designs. Sometimes for practical reasons one may choose a design on some finite subset of the original experimental domain. This article addresses the question of whether minimum discrepancy designs are the same for the discrepancy defined on the original experimental domain and the discrepancy defined on a subset. Under certain non-trivial conditions they are shown to be equivalent. Examples are given to show when these conditions apply.     

'On the side of the Angels': community involvement in the governance of neighbourhood renewal

Community involvement in regeneration is far from easy, and is difficult to define. The New Deal for Communities programme has directly involved residents in the governance of neighbourhood renewal with some success. However, community capacity has proved to be limited, adequate representation is difficult to achieve and there has been friction with local government. Community empowerment has to be enabled and supported by getting the structures and processes right, and supporting community representatives.     

Managing trade promotions in the context of market power

The use of trade promotions as a channel-programming tool has increased substantially in the past decade. In focusing on the tactical implications of trade promotions, some firms appear to have underestimated the tendency of poorly planned trade promotions to interfere with the implementation of a marketing strategy. In this article, the authors examine the complex issue of trade promotion use from both long-term and short-term perspectives. Different trade promotions can produce dissimilar types of channel cooperation, consumer responses, and postpromotion channel member behavior, resulting in differences in distribution-programming preferences between suppliers and retailers. The authors argue that the adjudication of these different preference structures is addressed through the market power of the channel participants. Based on an assessment of these channel relationships, an approach for suggested courses of action is forwarded. Jack J. Kasulis is an associate professor of marketing at the University of Oklahoma. He obtained his Ph.D. in marketing from Northwestern University in Evanston, Illinois, and has research interests in marketing channels, retailing, and consumer behavior. His articles have appeared in such journals as theJournal of Consumer Research, Journal of the Academy of Marketing Science, European Journal of Marketing, Journal of Business Research, Journal of Advertising Research, and various other journals and proceedings. Fred W. Morgan is the Ashland Professor of Marketing at the University of Kentucky. He obtained his Ph.D. in marketing from Michigan State University in East Lansing and has research interests in legal issues in marketing, sales management, and marketing channels. His articles have appeared in such journals as theJournal of Marketing, Journal of Marketing and Public Policy, Journal of the Academy of Marketing Science, Journal of Marketing Channels, and various other journals and proceedings. David E. Griffith is an associate professor and the Harvey Jones Chair of Marketing at Ouachita Baptist University. He obtained his Ph.D. in marketing from the University of Texas in Austin and has research interests in marketing channels, marketing strategy, and ethics. His research has appeared inMarketing Letters, Journal of the Academy of Marketing Science, Journal of Marketing Channels, and various other journals and proceedings. James M. Kenderdine is an associate professor and director of the Distribution Research Program at the University of Oklahoma. He obtained his D.B.A. from Indiana University in Bloomington. His research interests are in wholesaling, retailing, and marketing channels. His publications have includedThe Changing Economics of Wholesaling: A North American Chart Book, Wholesaling in Transition: An Executive Chart Book, and articles in various journals and proceedings.     

Price behavior of deep discount bonds

With rising interest rate trends, deep discount bonds are more commonly observed. The traditional view has been that, for a given yield change, the changes in bond prices are larger, the longer the maturity. This note shows that, for a deep discount bond, there is a switchover point beyond which the traditional view no longer holds. This is true for percentage as well as for dollar price changes. The traditional view should be corrected to avoid misleading effects on the management of bond portfolios.