we identified and analyzed environmental beliefs grouped under the terms 'new environmental paradigm’ (nep, dunlap, van liere, mertingen and jones, 2000) about the environmental behavior, economic liberalism, religiosity and happiness in young people from a central valley region of chile. a sample of 409 participants, with average of 33 years answered a battery of instruments consisting of the nep-r which measures beliefs about the relationship between man and nature by two-dimensional-centrism and anthropocentrism, ecological behavior scale (ebs), economic liberalism scale (els) and the subjective happiness scale (shs). the rural or urban origin has no effect on any variables measured. the general beliefs in favor of the environment are positively related to ecological behavior (pro-environmental behavior) and subjective happiness, but not with economic liberalism (rs(409) ≥ 0.138, ps ≤ 0.041). the economic liberalism is correlated only with the beliefs about the anti-anthropocentric thinking (r(409) = 0.192, p = 0.004) so that those who are most economically liberal do not believe in the supremacy of man over nature. those who subscribe to any religion have more ecocentric beliefs than who do not have, without sex or age differences were observed for other variables. questions are raised and debate about these and other results.