The impact of industry environment on early market entry decisions by B2B managers in the U.S. and Japan

Managers form simplified mental models to cope with market environment uncertainties and to process information. A critical decision is whether to enter a high-potential market early. Large innovation and development investments involved in this decision increase uncertainty. We examine the importance ascribed by U.S. and Japanese managers to competitive forces when making early market entry decisions. We expect that the competitive forces will have different effects on the likelihood of early market entry in the U.S. versus Japan due to cultural and business environment differences, and we thereby develop several propositions. We develop a decision-making exercise simulating early market entry decisions, and tested our propositions with managers in medium to large business-to-business (B2B) firms from both countries. We assessed impacts of the competitive market forces on entry strategy selection via relative weights, repeated-measures analysis of variance, and frequency analysis. Our findings revealed differences in the mental models of Japanese and U.S. managers. Buyer power had a larger effect on the decision to make an early market entry for Japanese managers, while threat of new firm entry had a larger effect for U.S. managers; these findings were consistent with our propositions. We also found several areas of agreement between U.S. and Japanese managers. We conclude with theoretical implications and recommendations to B2B management.     

我国近中期原油资源配置研究

随着国民经济的持续、快速发展,交通运输、汽车等支柱产业迅速兴起,对石油产品的需求不断增长,使石油在我国能源消费构成中的比例逐年提高,而原油增长速度相对较低,导致国内石油的供求矛盾日益突出。为确保我国石油、石化工业长期稳定发展,亟须落实石油资源并优化资源配置。从近中期我国石油供需形势的分析预测入手,探讨了原油配置的区域优化问题。     

A note on “minimizing a weighted quadratic function of job lateness in the single machine system”

A set of jobs is to be scheduled on a single machine where an idle time is allowed to be inserted before the processing of the first job begins. The objective is to find an optimal sequence that minimizes the weighted sum of a quadratic function of job lateness. Sen et al. [Sen, T., Dileepan, P., Lind, M.R., 1995. Minimizing a weighted quadratic function of job lateness in the single machine system. International Journal of Production Economics 42(3), 237–243] presented a branch-and-bound algorithm for the problem; however, as shown in this note, their algorithm does not work because the branching rule for adjacent jobs is not applicable to non-adjacent jobs.