基于CA的产业集群生命周期模拟分析

本文结合产业集群企业投资策略选择,建立产业集群生命周期的CA模型,通过计算机模拟实验验证产业集群生命周期的存在性,并考察企业资金状况、企业技术水平、企业风险偏好、集群投资环境等因素对产业集群生命周期的相对影响,明确关键影响因素。     

Why Does Cell Implementation Stop? Factors Influencing Cell Penetration in Manufacturing Plants

There is little understanding as to why firms have various degrees of cell usage. The intent of this study was to identify factors that had arrested continued implementation of cells at surveyed manufacturing plants. We found no dominant factor that had prevented the firms from continued cellularization. However, by sub‐dividing the plants into those with low and high degrees of direct labor hours spent in cells, short and long experience with cells, and those with and without plans for further cells, a clearer pattern emerged. The inability to find families with high and stable demand, lack of time to implement more cells, the existence of service processes, and the difficulty of cost justifying new cells were the most important factors, although their relative importance varied. The findings support the notion that cellular manufacturing has broad applicability as a form of work organization and that cell users pursue further implementations until no more viable cells with sufficient utilization, demand stability, or economic value can be found.