Search results

This paper aims to examine the determinants of vertical intra‐industry trade (VIIT) in the automobile components industry between Portugal and the European Union 27 (EU‐27) and the BRIC countries (Brazil, Russia, India and China) during the period 1995‐2006.

The paper formulates some theoretical hypotheses that may explain the fragmentation of the production in the automobile industry. These hypotheses are tested using a dynamic panel data analysis. The estimates are more reliable because the instruments used control for the potential endogeneity of the explanatory variables.

The results indicate that VIIT is a positive function of the difference in per‐capita GDP between Portugal and its trading partners, confirming the Linder hypothesis. Moreover, there is statistical evidence that geographical distance influences negatively this type of VIIT between Portugal and the EU‐27 only. The results do not confirm the hypothesis that there is a positive correlation between differences in endowments and VIIT in the automobile components sector.

This paper confirms some relevant theoretical hypotheses on the causes of the fragmentation/outsourcing. The good results obtained with the Arellano and Bond GMM system estimator suggest that the building of dynamic theoretical models will be of interest to academic researchers in fragmentation theory.

Maintenance represents an indispensable role in the productive sector of the steel industry. The increasing use of operating with a high level of precision makes hydraulic systems one of the issues that require a high level of attention. This study aims to explore an empirical investigation for decreasing the occurrences of corrective maintenance of hydraulic systems in the context of Lean 4.0.

The maintenance model is developed based on action-research methodology through an empirical investigation, with nine stages. This approach aims to build a scenario to analyze and interpret the occurrences, seeking to implement and evaluate the actions to be performed. The undertaken initiatives demonstrate that this approach can be applied to optimize the maintenance of an organization.

The main contribution of this paper is to demonstrate that the applied method allows the overviewing results, with a qualitative approach concerning the maintenance actions and management processes to be considered, allowing a holistic understanding and contributing to the current literature. The results also indicated that Lean 4.0 has direct and mediating effects on maintenance performance.

This research intends to propose an evaluation framework with an interdimensional linkage between action research methodology and Lean 4.0, to explore an empirical investigation and contributing to understanding the actions to reduce the occurrences of hydraulic systems corrective maintenance in a production line in the steel industry.