Communication Research field has an extraordinary growth pattern, indeed bigger than other research fields. In order to extract knowledge from such amount, intelligent techniques are needed. In such a way, using bibliometric techniques, the evolution of the conceptual, social and intellectual aspects of this research field could be analysed, and hence, understood. Although the communication research field has been widely analysed using bibliometric techniques and science mapping tools, a conceptual analysis of the whole communication research field is still needed. Therefore, this article introduces the first science mapping analysis in the communication research field based on the Web of Science Subject Category "Communication," showing its conceptual structure and scientific evolution. SciMAT, a bibliometric science mapping software tool based on co-word analysis and h-index, is applied using a sample of 33.627 research documents from 1980 to 2013 published in 74 main communication journals indexed in the Journal Citation Reports of the Web of Science. The results show that research conducted in the communication research is concentrated on the following sixteen disconnected thematic areas: “children”, “psychological aspects”, “news”, “audience”, “surveys”, “advertising”, “health”, “relationship”, “gender”, “discourse”, “telephone communication”, “public relation”, “telecommunications”, “public opinion”, “activism” and “internet”. These areas have progressively disconnected among them, which drives to a Communication field relatively fragmented.El campo científico de la comunicación ha experimentado un enorme crecimiento a lo largo de los años, superando incluso a algunas áreas científicas consagradas. Mediante el uso de técnicas bibliométricas, podemos analizar la evolución conceptual, social e intelectual de esta área, así como comprenderla. En particular, el área de «Comunicación» ha sido ampliamente estudiada desde un punto de vista bibliométrico, pero no se ha realizado un análisis conceptual global del área englobado en un marco longitudinal. En este sentido, este artículo muestra el primer análisis de mapas científicos del área de investigación de la comunicación basándose en la Categoría de la Web of Science «Communication», centrándose en la estructura conceptual y cómo esta ha evolucionado. El estudio se ha realizado mediante la herramienta de análisis de mapas científicos SciMAT, basada en los mapas de co-palabras y en el índice-h. Un conjunto de 33.627 artículos científicos, publicados entre 1980 y 2013 en las 74 principales revistas del Journal Citation Reports de la Web of Science, han sido estudiados. Analizando los resultados, podemos destacar que la investigación llevada a cabo en el área de la comunicación se ha centrado en dieciséis áreas temáticas: «infancia», «aspectos psicológicos», «noticias», «audiencias», «sondeos», «publicidad», «salud», «relaciones», «género», «discurso», «comunicación telefónica», «relaciones públicas», «telecomunicaciones», «opinión pública», «activismo» e «Internet». Estas áreas se han desconectado entre ellas progresivamente, lo que conduce a un campo relativamente fragmentado.

Citation classics identify those highly cited papers which are an important reference point in a research field. Identifying citation classics in a research field is one of the main approaches used to conduct a systematic evaluation of research performance. Highly cited articles are interesting due to the potential association between high citation counts and high quality research.The aim of this study is to identify and analyze the most frequently cited papers published into the Fuzzy Decision Making research field, using the H-Classics approach which is based in the well-known H-index. The Fuzzy Decision Making is represented by 70 highly citations classics which where published from 1981 to 2010. Furthermore, authors, affiliations, journals and the concept covered by those 70 highly cited documents are analyzed.We identify three countries that have contributed substantially to development of the Fuzzy Decision Making research field: Spain, Peoples Republic of China and USA. Regarding the journals, Fuzzy Sets and Systems, European Journal of Operation Research, IEEE Transactions on Fuzzy Systems and International Journal of Intelligent Systems are the ones where the citations classics have been mainly published. Finally, the concepts covered by those citations classics are related with techniques and tools used in Fuzzy Sets theory and Fuzzy Decision Making research field, and terms related with Decision making theory and its developments

One of the variables assessed in the research related to the consumption of green products is environmental concern. This work explores a new dimension to environmental concern: biodiversity. The reasons why research has focused on the mentioned dimension are, on one hand, the consideration of biodiversity as the main environmental indicator of the sustainability and, on the other, the paucity of marketing studies analyzing this variable and its relationship with the purchase behavior of sustainable products. The present paper proposes a classification of sustainable consumers according to their level of biodiversity concern. It is based on a quantitative study on the consumption behavior of olive oils carried out in four European countries, using the clustering multivariate technique. The results point out that there are differences between the segments depending on their level of commitment to biodiversity. The country’s influence on the way that its people experience biodiversity was also tackled. As a main conclusion, we identify four clusters or segments (not concerned, passive, active and influencers), setting up a multilevel structure of ascending intensity with regard to their level of biodiversity concern, with differences in the composition according to age and sex between countries.