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The purpose of this paper is to present a numerical simulation of the hydrogen atomic effect on the steels fracture toughness, as well as on crack propagation using fracture mechanics and continuous damage mechanics models.

The simulation was performed in an idealized elastic specimen with an edge crack loaded in the tensile opening mode, in a plane strain state. In order to simulate the effect of hydrogen in the steel, the stress intensity factor ahead of the crack tip in the hydrogenated material was obtained. The damage model was applied to simulate the growth and crack propagation being considered only two damage components: a mechanical damage produced by a static load and a non‐mechanical damage produced by the hydrogen.

The simulation results showed that the changes in the stress field at the crack tip and the reduction in the time of growth and crack propagation due to hydrogen effect occur. These results showed a good correlation and consistency with macroscopic observations, providing a better understanding of the hydrogen embrittlement phenomenon in steels.

The paper attempts to link the concepts of the continuous damage and fracture mechanics to achieve a better approach in the representation of the physical phenomenon studied, in order to obtain a more accurate simulation of the processes involved.

Aim of the present monograph is the economic analysis of the role of MNEs regarding globalisation and digital economy and in parallel there is a reference and examination of some legal aspects concerning MNEs, cyberspace and e‐commerce as the means of expression of the digital economy. The whole effort of the author is focused on the examination of various aspects of MNEs and their impact upon globalisation and vice versa and how and if we are moving towards a global digital economy.

The purpose of this paper is to analyse empirically the corporate social responsibility (CSR) strategic effects on the competitive performance of small- and medium-sized enterprises (SMEs) by performing a multiple mediator analysis.

The empirical research was conducted in Spanish SMEs. A questionnaire was distributed among managers of these companies. Thus, with a final sample of 481 cases and using consistent partial least squares structural equation modelling, direct and mediating effects were tested. In particular, relationships among corporate social performance (CSP) (exogenous variable), competitive performance (endogenous variable), relational marketing (mediating variable) and innovative capacity (mediating variable) were hypothesized. Moreover, a further analysis about the superior returns offered by socially responsible practices related to core business stakeholders was conducted.

The results highlight a significant and positive effect that CSP has on competitive performance. Additionally, both mediating positive effects were supported and the firm size was checked as a relevant control variable which, as proxy for resources availability, affects all constructs used with the exception of relational marketing. Managers interested in a strategic approach to social responsibility should be aware that the investment in activities related to employees and customers leads to higher competitiveness.

The study was limited to SME in Spain. Moreover, information related to competitive performance was gathered from managers’ own perceptions, considering the performance of their direct competitors as a reference level.

To the authors knowledge, no research studies were found that empirically examined the business case in SMEs and employed a CSR approach based on stakeholders’ perspective. Therefore, the main contribution of this research is to show how socially responsible management of SMEs leads to higher competitive performance both direct and indirectly, using two strategic variables suggested in literature on large corporations. Despite their resources limitations, this kind of organizations is in a favourable position to engage with different stakeholders and benefit from their relationships, especially with employees and customers.

This paper aims to develop an understanding of cooperation and collaboration in the natural wine industry in Spain as well as a deeper understanding of the challenges facing natural wine producers in the 21st century.

Field interviews using a structured questionnaire were conducted with five Spanish producers of natural wine in five different regions during fall 2018 and late spring 2019. Interviewers prompted respondents to expound upon the potential of incorporating cooperative relationships to help producers grow their businesses, share production and marketing techniques and explain how they educate consumers about natural wines.

Content analysis among five field-researched case studies reveals common goals and challenges, but Spanish natural wine producers have not reached a consensus on the benefits of cooperative relationships. Respondents acknowledge that their indecisiveness and consumer confusion about natural wines are barriers to working together.

Generalizations from a sample comprised five companies cannot be made, nor can we claim that respondents were unbiased. Respondents were reluctant to release financial and production data; thus, the outcomes of coopetition strategies were indeterminate. It may be that a coopetition strategy is only positive up to a fixed point, upon which a diminishing-returns effect is manifested. Observations were made during a period when the Spanish wine industry was contracting, as political uncertainty in that country and post-Brexit clouded the future of tourism in and exports from certain Spanish wine regions.

Collaboration and cooperation would afford Spanish natural wine access to shared resources, networks and farming technology and knowhow to enhance the image and reputation of natural wine in Spain and internationally.

To explore how cooperative and collaborative relationships might be achieved, five case studies of natural wine producers in Spain illuminate their real-life challenges and goals. Cooperative relationships among these producers have the potential to contribute to industry growth and value creation, while creating shared competitive advantages. As these niche producers weigh how to come to a consensus about pooling resources and working together to educate the prospective natural wine consumer, doing so may well lead the next wave of entrepreneurial, innovative activity in an industry that is ripe for change.

To explore how natural wine producers face the challenge to increase transparency in its production and to help consumer to know what natural wine is. In the Old World, the French Fraud Control Office recognized the category “vin méthode nature” (wine nature method) as a special wine. It was the first step towards helping consumers to reduce the information asymmetries existing between the productive and consumption fields, increasing transparency in natural wines production.

Since China's accession of the World Trade Organization (WTO), its construction industry has attained unprecedented growth. However, for the sources of this enormous growth, a controversy regarding the total factor productivity growth (TFPG) still remains in production practice and extant studies. In view of this, the purpose of this paper is to measure TFPG and to explore its sources in the industry post-WTO accession.

This study presents an innovative source analysis of TFPG. Stochastic frontier approach is adopted to measure TFPG and to explore its sources by decomposing TFPG into technical progress (TP), technical efficiency change (TEC), allocative efficiency change (AEC) and scale efficiency change (SEC). Although China joined WTO in 2001, to provide an effective baseline, the study period is from 2000 to 2017.

The empirical results reveal that TFPG presented an overall downward evolutionary trend, but it still maintained a high growth post-WTO accession. From the perspective of decomposition, TP was the main source of TFPG. Furthermore, as a neglected source, interaction effects among TP, TEC, AEC and SEC have been demonstrated to have a significant influence on the cumulative TFPG.

To make the results be reliable, the authors discuss the empirical findings mainly by revealing the reasons behind the evolutions of TFPG and its sources. Based on these revealed reasons, government and policy makers can further refine and summarize some more detailed and targeted policy implications to improve TFPG.

By providing many empirical evidences to solve the aforesaid TFPG controversy, this paper, therefore, enriches the body of knowledge on growth theories, especially at the level of industrial economics.

The purpose of this paper is to conduct a benchmark analysis of European cities based on the estimation of a composite index of efficiency from the dimensions of the Cultural and Creative Cities Monitor 2017 (CCCM). The study helps to initiate a new exploration path based on this information, using a segmentation criterion of countries according to their economic and demographic characteristics, in search of greater comparative homogeneity.

In this paper, the metafrontier methodological proposal with data envelopment analysis (DEA) has been used to compare the groups of cities individually with their joint reference.

The results obtained indicate, from a greater control of heterogeneity, through the segmentation of the sample of cities and the metafrontier methodology, that the composite index (IEC3) through the enveloping data analysis methodology (DEA) is more robust than that obtained with the arbitrary assignment of CCCM weights. The analyses carried out make it possible to study and conduct more real and rigorous comparisons of the cities that experience the best practices, unlike other more distant ones. Reference to cities such as Paris, Louvain and Cork could serve as a basis for possible improvements.

It is important to bear in mind that the possible urban policies of a city and the creative strategies and their derived impact are different, because of the diversity in each city. These new comparability possibilities could serve as a tool for economic policy makers, companies and local managers to carry out learning and simulation processes in the improvement of creative cities.

This study aims to describe the process leading the climate emergency declaration (CED) at the University of Salamanca. In contrast to similar initiatives, this was achieved with the participation of students on the social movement Fridays For Future Salamanca.

The context of the CED is described. Statements in Spanish universities are used for comparison and internal reports and evaluations were analyzed to measure the progress. Testimonies from the proponents of the declaration and from the agents implementing actions were classified to describe the roles and dynamics involved in the participatory process. Twitter and newspapers are also used to complete the data triangulation.

The results show that Climate Emergency has been enriched by a bottom-up approach, generating challenges and opportunities to take into account when considering community participation. A university that aspires to be a role model for a low-carbon future needs to address how to construct efficient participatory mechanisms. In that matter, the authors propose their experience that might be useful for other institutions.

The CED is a common practice in universities but it is not always associated with specific actions and policies. In this case, the main feature is the students participation, in particular the social movement Fridays For Future.

The purpose of this paper is to analyze potentially significant differences in a series of relevant characteristics of universities’ technology transfer offices (TTOs). To this end, TTOs have been classified by the function of their resources assigned to the enhancement of university entrepreneurship. The factors analyzed are the number of academic spin-offs created with the support of TTOs as well as the TTOs’ age, experience, professionalization and relational capital.

The authors have performed a hierarchical agglomerative cluster analysis to identify the groups of TTOs with homogeneous behavior and features. This multivariate technique allows determining whether it is possible to identify some differentiated conglomerates of TTOs.

The results of the cluster analysis allow concluding that the number of academic spin-offs created with the support of TTOs, the age and degree of professionalization of these TTOs, the experiences of their employees in matters related to entrepreneurship and their relationships with market actors explain the different levels of commitment of TTOs toward the enhancement of university entrepreneurship. In contrast with the expected results, the relationship between TTOs and academic actors does not seem to explain such differences.

This research contributes to the identification of the particular design characteristics that TTOs should exhibit to promote the entrepreneurial performance of universities, offering important recommendations to academic institutions regarding the efficient design of TTOs to manage university ambidexterity and to build TTOs’ entrepreneurial identity.