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In this study, the authors developed a conceptual model to investigate sustainable consumption behavior, specifically the intention to use reusable bags, and its relationship with two crucial factors influencing the use of single-use plastic bags: cost savings and convenience. This study also aims to explore the mediating roles of environmental concern, guilt and self-efficacy.

A quantitative study using online survey involving 421 respondents was conducted, and data analysis performed using structural equation modeling.

The results indicate that self-efficacy influenced environmental concern and sustainable consumption, while perceived savings did not. Perceived convenience significantly influenced sustainable consumption behavior. Environmental concern had indirect effects on the relationships between perceived savings, perceived convenience and sustainable consumption behavior, whereas guilt did not moderate the relationship between environmental concern and sustainable consumption behavior.

The main contribution lies in the insights for promoting the sustainable use of reusable shopping bags, benefiting both theoretical understanding and practical applications in efforts to encourage sustainable consumption behavior.

This paper examines data protection related ex ante transaction costs borne by the private sector in the context of smart city service (SCS) public tendering in the European Union after the introduction of the General Data Protection Regulation. This study aims to establish the determinants of ex ante transaction costs related to data protection as well as to determine their relevance toward (tender) competition.

A statistical analysis of a survey sample of 72 SCS tender bids.

The potential of relationship management to foster more private sector investment in data protection for SCSs is established, i.e. stronger ties between parties lead to higher private sector investment. Furthermore, it is found that investing more in data protection can further boost both internal capabilities and the organizational reputation of tendering organizations. Finally, the analysis exposes a potential problem concerning the market for data protection originating from the dominant approach concerning SCS tender bid evaluation.

SCS tender bid evaluation is not perceived by the evaluated companies as having data protection as a (core) component. As a consequence, there is no strong competition in that specific area. To induce the private sector to structurally develop SCSs that can be expected to safeguard the fundamental rights of citizens, a more thorough evaluation of data protection aspects of bids imposes itself. Such an overhaul is likely to demand additional public sector resources and expertise.

This paper constitutes an early investigation into data protection related ex ante transaction costs borne by private sector actors. Incentives for data protection investment in the context of public procurement procedures are discussed.

This study aims to investigate the relationship between supply chain leadership, digital supply chain practices and corporate sustainability strategies on the sustainability performance of logistics firms in Nigeria, one of Africa’s largest economies. It indicates that collaborative efforts within the supply chain context can improve sustainability performance.

Data from 468 firms in a major sub-Saharan African market were collected through a structured questionnaire. The analysis used descriptive statistics, principal component analysis and hierarchical regression analysis. Factor analysis and Cronbach’s alpha analysis were used to assess the validity and reliability of the instrument.

The results of this study reveal significant findings: proactive sustainability strategies exert a substantial positive effect on sustainability performance (β = 0.694, SE = 0.025, p < 0.01). Even when proactive sustainability strategies are included in the model, the positive impact of reactive sustainability strategies remains significant (β = 0.694, SE = 0.025, p < 0.01: Model 5). Regarding the moderating role of proactive and reactive corporate sustainability strategies, there is a notable interaction effect between supply chain leadership and proactive sustainability strategies concerning sustainability performance (p < 0.05). This confirms the positive relationship between supply chain leadership and sustainability performance when proactive sustainability strategies are at a high level (β = 0.844, SE = 0.0010, p < 0.01), supporting H4 that this relationship strengthens with higher levels of proactive sustainability strategies. Conversely, for Hypothesis H5, the interaction effect of reactive sustainability strategies with supply chain leadership changes the relationship from significantly positive to significantly negative (β = −0.068, SE = 0.0009, p < 0.01). Using the Baron and Kenny approach to test mediation, the mediating effect of digital supply on digital leadership is significant (β = 0.345, p = 0.000, p < 0.01). Furthermore, the effect of digital supply on sustainability performance is statistically significant (β = 0.081, p = 0.006, p < 0.01), as is the effect of digital leadership on sustainability performance (β = 0.181, p = 0.000, p < 0.01). These results indicate a mediation effect of digital supply.

This study of logistic management has limitations, including its cross-sectional nature, which precludes the establishment of causality, thus necessitating longitudinal research to determine causal relationships. In addition, the focus on Nigerian firms, which vary significantly in their stages of learning and institutional development, emphasizes the need for further research in diverse contexts. Future studies should examine alternative institutional environments or developed economies to validate these assumptions. Another limitation is the potential for bias due to six employees rating their firms on each variable; therefore, using multiple data sources is recommended to objectively evaluate the validity of the self-reported questionnaire.

This study advises managers to exercise caution when selecting between proactive and reactive sustainability strategies to enhance sustainability performance. Proactive strategies reinforce the relationship between supply chain leadership and sustainability performance, while reactive strategies diminish it. Therefore, managers are encouraged to adopt more proactive strategies. This paper suggests that managers in emerging economies should recognize the distinct impacts of proactive sustainability strategies and allocate more resources toward them to improve sustainability performance, even in competitive markets. In addition, it highlights the importance of digital supply in fostering sustainability performance.

This study presents a novel perspective on the moderating role of corporate sustainability strategies in the relationship between supply chain leadership and the sustainability performance of logistics firms. It provides empirical evidence and fresh insights on proactive and reactive sustainability strategies for logistics firms in Nigeria. The findings highlight that proactive sustainability strategies enhance the connection between supply chain leadership and sustainability performance, whereas reactive strategies do not.