Social needs are universal and their fulfilment is considered to be a prerequisite for happiness and well-being. Currently, the assertion that income or revenue alone are insufficient to explain inequality of well-being and happiness in the evaluation of social policies is becoming ever more widespread in the social sciences. Therefore, numerous quantitative metrics mostly based on univariable scales have been created over the last sixty years to measure well-being, quality of life, or happiness. Based on a systematic review, this article compiles several measurement instruments of happiness and human well-being, and reflects that all of them measure and concentrate more on hedonic than eudaimonic happiness. Finally, it contemplates the need to develop a multidimensional model based on the sociology of emotions that includes social relationships and the complexity of human happiness, focusing more on eudaimonic rather than hedonic happiness.

Negotiation is the main mean of conflict resolution. Despite its capital importance, little is known about influencing variables or effective interventions. Mindfulness has shown to improve subjects' performance in different settings but until now, no study has shown its impact in negotiation. The aim of this study is to analyze which variables are associated with effectiveness and to determine if meditators are more effective in negotiation. A cross-sectional descriptive study was carried out. The study variables were: socio-demographic variables, negotiation effectiveness (Negotiation Effectiveness Questionnaire), mindfulness (Five Facets of Mindfulness Questionnaire), emotional intelligence (Trait Meta-Mood Scale Questionnaire), personality (NEO-FFI personality inventory), motivation (McClelland Questionnaire), and negotiation style (Rahim Organizational Conflict Inventory-II). A correlational study and a multivariate model were developed. Negotiation effectiveness was associated with age, mindfulness, emotional intelligence, extraversion, openness, conscientiousness, achievement motivation, integrating, dominating, and compromising negotiation styles and inversely correlated toward neuroticism. The effectiveness of the negotiation is explained by the variables clarity, age, conscientiousness, dominating, and compromising style. Meditators were found to be more effective than non-meditators.

Not applicable.GD led the design and developed the study and had the original idea. GD and AAL coordinated and undertook the research and data analysis. GD and AAL wrote the first draft of the article. BOB and PGR have read the manuscript critically, offering contributions and approving the final version. The corresponding author attests that all listed authors meet authorship criteria and that no others meeting the criteria have been omitted.

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