Using replication research for just-in-time purchasing construct development

Using replication research, the validity of the just-in-time purchasing (JITP) construct is established. Although empirical researchers have examined JITP over the last two decades, a consistent set of valid, reliable factors has not been used. The lack of valid construct is a barrier to hypotheses testing and meta-analyses on JITP. This study confirmed the validity of six JITP factors: top management commitment, employee relations, training, supplier quality management, transportation, and quantities delivered using two different data sets and testing the first- and second-order structure of the JITP construct. Content validity, reliability, unidimensionality, convergent validity, discriminant validity, criterion-related validity, and an invariant factorial structure of the JITP construct were empirically established.     

The Manipulability of Matching Rules via Segmentation

Our matching problems feature agents with endowments facing certain division rules. At any matching, the endowments of agents are reallocated between the matched pairs according to some given division rule, and this opens doors to an iterated matching problem and rematching, and to manipulation of some matching rules via segmentation. In this form of manipulation a coalition breaks off from the rest, matches within itself and rejoins the complementary coalition for a rematching at the new endowment profile. Under certain division rules this may benefit the coalition who breaks off without hurting the complementary coalition. Furthermore, both may benefit by first matching internally and then rejoining for a new match.     

Marketing versus public relations in selling nuclear power

All too often, the terminology and practices of public relations are used when marketing is what is really needed. This misapplication appears most often when a concept, an idea, or an intangible product is involved. Webster defines public relations as: relations with the general public through publicity; those functions of a corporation, organization, branch of military service, etc., concerned with informing the public of its activities, policies, etc., and attempting to create favorable public opinion.This definition implies a general, ongoing effort to supply information supporting the image of an organization. There is, however, a considerable difference between this kind of activity and the specific, overt process of marketing. This difference has been particularly apparent in attempts of public utilities to “sell” nuclear power plants. Utilities, of course, are monopoly suppliers and, as such, must seek a favorable image in the community. Thus, when public opposition to nuclear power plants mounted, many utilities responded with stepped-up public relations programs; the method they knew best. This article examines the experience of several utilities in locating nuclear plants and suggests how marketing techniques might be used in selling this intangible product.     

Screening life insurance applicants with hemoglobin A1c: a pilot study of cost-benefit

Hemogloblin A1c (HgbA1c) values are superior to those of random serum glucose, serum fructosamine, and urine glucose as a means of detecting carbohydrate intolerance. Further, HgbA1c values have been shown to correlate with mortality in a continuous fashion beginning at levels between 5.0% and 6.0%. Unfortunately, the expense of HgbA1c testing is considerably higher than that of routine serum chemistry testing. Diabetes is an increasingly common disorder clearly associated with mortality. Also, the current demographic trends towards increasing age and increasing prevalence of obesity underscore the value to underwriters of identifying carbohydrate intolerance.     

Only the lonely? The influence of the spouse on the transition to self-employment

Previous research showed that married individuals are overrepresented among the self-employed. Few studies proposed skill-spillover between the spouses within the marriage as an explanation. This paper deviates from the previous research by exploring different relationship contexts (e.g., cohabitation, being married or divorced, a widow(er) or single) and the role of partner influences under these contexts. It argues that the interaction between gender and relationship status implies variation in not only resources but also constraints, and hence sorts individuals into two different types of self-employment: entrepreneurial self-employment (i.e., incorporated business) and unincorporated self-employment. Using “Panel Study of Income Dynamics (PSID) 1965–2005” data, results of the competing risk models show that marital status contributes to both types of self-employment transitions, especially for men, but also for women. Cohabitation is a less supportive context for entrepreneurship and a partner’s self-employment experience increases only women’s likelihood of entering into entrepreneurship. These results suggest that skill-spillover between partners might be context dependent and only in one direction (from men to women).     

Speculative attacks and currency crises: The Mexican experience

By using data from the Mexican economy, this paper estimates a speculative attack model of currency crises in order to identify the role of macroeconomic fundamentals and early warning signals of a potential currency crisis. A deterioration in fundamentals appears to generate high one-step-ahead probabilities for the observed regime changes during the sample period 1982–1994. Particularly, foreign reserve losses, expansionary output, monetary and fiscal policies, an increase in inflation differentials and the share of short-term foreign currency-indexed debt, and an appreciation of the real exchange rate appear to have contributed to the speculative pressures and the associated regime changes.