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An effective business model (BM) is essential for the success of any company, with sustainable innovation being a critical component of this model. This entails finding creative ways to meet present needs without compromising future generations. In this regard, cooperation can be crucial in developing sustainable innovation. This paper investigates how different types of cooperation impact the development of small and medium-sized enterprises (SMEs) innovation for environmental sustainability. In this sense, it intends to compare the effects of cooperation acquired nationally or at a European level.

The methods used are logistic regression for the sample of 87,374 observations from 14 countries of the Eurostat Community Innovation Survey (CIS) database.

The results confirm that cooperation with national or European agents significantly impacts the innovation for environmental sustainability of SMEs; however, not all cooperations have the same significance level. At a national level, cooperation with the suppliers of equipment, materials, components or software, clients or customers and universities or other higher education institutes impacts the innovations for environmental sustainability developed by SMEs. At a European level, cooperation established with other enterprises within your enterprise group, equipment, materials, components or software suppliers, clients or customers and government, public or private research institutes significantly impacts innovations for environmental sustainability.

This study also provides substantial theoretical contributions on the subject and more information about the importance of cooperation by SMEs in developing innovation for environmental sustainability.

The continuous presence and intensity of the Internet of things (IoT) in our lives and the risk of security breaches in traditional transactional and financial platforms are the major cause of personal and organizational data losses. Blockchain emerges as a promised technology to ensure higher levels of data encryption and security. Thus, this study aims to develop a systematic literature review analyzing the previous literature and to purpose of a framework to better understand the process of blockchain security.

The 75 articles reviewed were obtained through the Scopus database and a bibliographic-coupling analysis was developed to identify the main themes of this research area, via VOSviewer software.

The results enable the categorization of the existing literature revealing four clusters: 1) feasibility, 2) fintech and cryptocurrency, 3) data trust and share and 4) applicability. Blockchain technology is still in its early stage of development and counting on researchers in security and cryptography to take it further to new highs, to allow its applicability to different areas and in long-term scenarios.

This systematic literature creates a base to reduce the blockchain security literature gap. In addition, it provides a framework that enables the scientific community to access the main subjects discussed and the articulation between concepts. Furthermore, it enhances the state-of-the-art literature on blockchain security and proposes a future research agenda.