Planning at gulf— A case study: Part I—Early developments of planning models

In this first part of the case study the authors introduced the background to the development of the planning models used by the Gulf Company. Both the Linear Programming model and the Sensitivity model are described, with discussion regarding the inter-relationship of these models and the discrete and mutual objectives behind their use.     

The study of intergenerational intimacy in North America: beyond politics and pedophilia

Intergenerational intimacy, social as well as sexual, has been studied in the United States and abroad for some time. In recent years the general trend has been to label such behavior "child sexual abuse." Interest in this type of abuse has generated a considerable amount of more or less scientific literature, some of which seems to have been produced in a "rush to judgment" attempt to build a "professional" literature that supports popular beliefs. This tradition of child-abuse-defined literature, along with the work of investigative and helping agencies which some refer to as a "child abuse industry," has fostered a one-sided, simplistic picture of intergenerational intimacy. A close look at the empirical studies in this tradition reveals flaws associated with two problems: the studies nearly always (1) maintain a narrow focus on sexual contact, and (2) proceed from the related basic assumption that sexual contact in intergenerational relationships by definition constitutes abuse. While sexual abuse certainly occurs, those who apply this assumption to all situations are ignoring empirical findings that show otherwise. Research outside the "child sexual abuse" tradition reveals a broader range of intergenerational relationships outside the family, including a number of aspects which typically are not seen when the focus is on the sexual. Some studies show clearly that even when sexual contact is involved, negative outcomes are not inevitable. This indicates the need for a much broader approach. Further research in North American society and in other cultures would help us to understand more accurately the diversity and possible benefits of intergenerational intimacy.     

Do Auction Parameters Affect Buyer Surplus in E‐Auctions for Procurement?

Although the initial euphoria about Internet‐enabled reverse auctions has given way to a cautious but widespread use of reverse auctions in business‐to‐business (B2B) procurement, there is a limited understanding of the effect of auction design parameters on buyer surplus. In this paper, we study the effect of bidding competition, information asymmetry, reserve price, bid decrement, auction duration, and bidder type on buyer surplus. We collected field data on more than 700 online procurement auctions conducted by a leading auctioneer and involving procurement items worth millions of dollars. Consistent with the predictions of auction theory, the results indicate that bidding competition, reserve price, and information sharing affect buyer surplus. Unlike previous findings in the consumer‐to‐consumer context, we find that bid decrement and auction duration have no effect in B2B procurement auctions. Our results suggest that use of the rank‐bidding format increases buyer surplus when incumbent suppliers participate in the auction. We discuss the theoretical and managerial implications of these findings for future research and for optimal design of online procurement auctions.     

Regulation as Country‐Specific (Dis‐)Advantage: Smoking Bans and the Location of Foreign Direct Investment in the Tobacco Industry

This paper seeks to examine the relationship between smoking bans and the propensity of tobacco firms to engage in foreign direct investment (FDI). Using international business theory based on the firm‐specific advantage/country‐specific advantage (FSA/CSA) matrix, the authors show that, contrary to what one may expect, smoking bans at home are an important institutional intervention, reducing the propensity for firms to engage in FDI, even to countries without a ban themselves.     

Algorithms for the workflow satisfiability problem engineered for counting constraints

The workflow satisfiability problem (WSP) asks whether there exists an assignment of authorized users to the steps in a workflow specification that satisfies the constraints in the specification. The problem is NP-hard in general, but several subclasses of the problem are known to be fixed-parameter tractable (FPT) when parameterized by the number of steps in the specification. In this paper, we consider the WSP with user-independent counting constraints, a large class of constraints for which the WSP is known to be FPT. We describe an efficient implementation of an FPT algorithm for solving this subclass of the WSP and an experimental evaluation of this algorithm. The algorithm iteratively generates all equivalence classes of possible partial solutions until, whenever possible, it finds a complete solution to the problem. We also provide a reduction from a WSP instance to a pseudo-Boolean (PB) SAT instance. We apply this reduction to the instances used in our experiments and solve the resulting PB SAT problems using SAT4J, a PB SAT solver. We compare the performance of our algorithm with that of SAT4J and discuss which of the two approaches would be more effective in practice.     

Feasibility and acceptability of using a web-based contraceptive support tool in a university health clinic

Abstract

Objective: To evaluate feasibility of integrating Bedsider.org, a web-based contraceptive decision support tool, at a university health clinic (UHC). Participants: Female students (ages 18–29) seeking contraceptive care at the UHC were enrolled in September 2015 (n?=?46). Methods: Providers recruited eligible patients during reproductive healthcare visits and introduced Bedsider. Surveys were administered immediately following the visit and a follow-up 2–4?weeks later. Electronic health records through 6?weeks post-enrollment were extracted. Results: Most patients had positive views toward Bedsider and appreciated receiving information during their UHC encounters. None were using long-acting reversible contraceptives (LARC) at enrollment. At follow-up, two patients self-reported IUD use. Among those recently sexually active, use of more effective contraceptive methods increased from 65% to 74%; 11% had initiated or were scheduled to receive a LARC. Conclusion: Bedsider can be feasibly integrated into UHC visits and may support women’s selection of more effective contraceptive methods, including LARCs.     

Editorial: The Future of Writing and Reviewing for IJMR

In this editorial, the co‐editors‐in‐chief undertake a number of tasks related to International Journal of Management Reviews (IJMR). They begin by reviewing the objectives set out by Macpherson and Jones in their 2010 editorial (IJMR, 12, pp. 107–113). The benefits of publishing in IJMR for scholars at various stages of their careers are then discussed. The section outlining the progress of IJMR over the last four years sets out the main reasons why so many papers are desk rejected by the co‐editors. The main criteria for writing an analytical literature review of the type that the editors aspire to publish in the Journal are then discussed. The objectives are not simply to reduce the number of desk rejects, but also to encourage authors to be more ambitious and innovative in their approaches to reviews of the literature.