The objectives and results of the research presented in this work have materialized and highlighted the personal contributions of the author. Following the research, it was concluded that both social media and consumer behaviour and perception of the quality of products and services can be considered “post-truth” because they are driven by emotions. It has also been shown that, from a conceptual
point of view, in relation to social media, the quality of products and services is subjective. Social media influences quality because it creates expectations among all consumers, regardless of the age segment they fall into. The product has certain technical
characteristics that determine its objective quality. The consumer, when reading
product reviews in social media, becomes influenced, creates certain ideas and expectations for the product and transforms its quality from an objective one into a
subjective one. The consumer thus has a new perception of the product. There have
been introduced the conceptual model of the influence of social media in the
consumer’s perception regarding the product and the conceptual model of quality,
under the influence of social media and of consumer’s emotions, through which the
product gets reconfigured by social media and by consumer emotions. All the information found in the online environment is filtered by the perceptions, principles, experience, education, consciousness or unconscious of the consumer and by his emotions.
In order to achieve the objectives of this research and to process, analyse and
interpret its results, a series of books and scientific articles relevant to the chosen
subject, of Romanian and foreign authors, published in specialized journals or international databases have been consulted and used. The first part of the paper emphasizes the current state of knowledge and includes two chapters that highlight the
main elements of the literature, the concepts of “quality” and “Social media”. The
second part of the paper aims to demonstrate the influence of social media on the
quality of products and includes the analysis of consumer behaviour in relation to
social media and research on the relationship social media - business – quality and
consumer’ emotions, in the highlight of new popular concepts as post-truth or fake
news.