Gebremeskel Melaku Mengistu
Bahir Dar University, Bahir Dar, Ethiopia.
PLoS One. 2025 May 13;20(5):e0322697. doi: 10.1371/journal.pone.0322697. eCollection 2025.
This study investigated the role of Kaizen in the effectiveness of the Amhara Metal Industry and Machine Technology Development Enterprise in Ethiopia, as perceived by its employees. To this end, the study examined employees' perceptions of the practice and utility of Kaizen, the relationship between Kaizen and organizational effectiveness, and the role of job performance and affective commitment in mediating the effect of Kaizen on the enterprise's effectiveness. The study employed an embedded mixed methods design, with documentary data playing a supportive role alongside the survey data. It involved 247 participants, who were recruited using a systematic random sampling technique to complete a questionnaire. The data were analyzed using both descriptive statistics (mean and standard deviation) and inferential statistics (one-sample t-test, correlation coefficient, confirmatory factor analysis, and structural equation modeling). According to employees' perceptions, although the practice of Kaizen within the enterprise was found to be poor, Kaizen showed a significant relationship with both employee affective commitment and job performance, as well as with the effectiveness of the enterprise. Moreover, Kaizen accounted for approximately 44% of the enterprise's effectiveness, 37% of employee job performance, and 20% of employees' affective commitment. Given that the poor implementation of Kaizen still explained such a significant proportion of the enterprise's effectiveness, it is plausible to conclude that its proper application could make a substantial contribution to productivity and profitability.
本研究调查了在埃塞俄比亚阿姆哈拉金属工业与机器技术发展企业中,员工所感知到的改善活动(Kaizen)在企业有效性方面所起的作用。为此,该研究考察了员工对改善活动的实践与效用的看法、改善活动与组织有效性之间的关系,以及工作绩效和情感承诺在调节改善活动对企业有效性影响方面所起的作用。该研究采用了嵌入式混合方法设计,文献数据与调查数据一同发挥辅助作用。研究涉及247名参与者,他们通过系统随机抽样技术招募而来,以完成一份问卷。数据采用描述性统计(均值和标准差)以及推断性统计(单样本t检验、相关系数、验证性因子分析和结构方程建模)进行分析。根据员工的看法,尽管企业内部的改善活动实践情况不佳,但改善活动与员工情感承诺、工作绩效以及企业有效性均呈现出显著关系。此外,改善活动对企业有效性的贡献率约为44%,对员工工作绩效的贡献率为37%,对员工情感承诺的贡献率为20%。鉴于改善活动实施不佳的情况下仍能解释企业有效性的如此大比例,我们可以合理推断,其正确应用能够对生产力和盈利能力做出重大贡献。