The objective of the research was to assess the factors affecting the quality of social infrastructure projects in the industrial zones in Hanoi, Vietnam ver the period 2018-2019 by means of qualitative and quantitative research methods where the quantitative research was conducted by an independent survey agency to enhance the objectivity of data. Adopting PLS - SEM method of Smart PLS, 3.0, we analyzed data from 396 valid questionnaires and the results showed that materials, design, construction and Stakeholder had positively affected the quality of Social Infrastructure Projects (SIPs). In the meantime, the project size also played a moderate role on the quality of social infrastructure projects.

The objective of this paper is to assess the impact of supply chain linkage on the performance of aluminum profiles enterprises in Northern Vietnam. After qualitative research results, the research team has discovered a new variable in the linkage model which is the Policy linkage. The study performs official quantitative research on 289 aluminum profiles in Northern Vietnam and the results were analyzed on SPSS 22 and Smart PLS 3.0 software. The results indicate that the links in the supply chain include: Supply linkage, customer linkage, policy linkage and internal linkage all contribute significantly to supply chain management efficiency. Moreover, the supply chain management efficiency had a positive effect on business performance of aluminum profiles in the northern region of Vietnam. Finally, the study gives solutions and recommendations to help aluminum bar enterprises shape the northern region of Vietnam to better link in the supply chain and improve business performance.