不同交易方式下项目冲突对成本绩效的影响

由于不同交易方式的项目在冲突来源、项目属性和组织内外部环境方面存在差异,以业主与承包商冲突为代表的项目冲突对成本绩效的影响不同.基于冲突相互作用观,通过收集187份有效问卷检验了设计-招标-建造(DBB)和设计-建造(DB)方式下业主与承包商冲突对成本绩效的影响关系.相关分析和回归分析结果表明:在DBB方式下,业主与承包商之间的冲突与项目成本绩效呈倒U型关系,适度的冲突能提升成本绩效,但随着冲突水平继续上升,成本绩效开始下降;在DB方式下,业主与承包商之间冲突产生的积极作用并不显著,主要起消极作用.

Influence of Project Conflict on Cost Performance in Different Project Delivery Systems

Represented by owner contractor conflict, project conflict influences cost performance diversely in different project delivery systems, due to their differences in source of conflict, project attributes, and the internal/external environment of organization. Based on the interactionist view of conflict, this paper tested the relationship between the owner contractor conflict and cost performance in design bid build (DBB) and design build (DB) projects with 187 valid questionnaires. Hypotheses were tested by using correlation analysis and regression analysis. Results indicate that the owner contractor conflict in DBB projects influences the project cost performance with an inversed U shape, which means a moderate level of conflict can improve cost performance until a certain point beyond which the cost performance diminishes. However, the owner contractor conflict in DB projects mainly produces negative impact on the project cost performance rather than the functional outcomes.