This investigation began in ancient philosophy, where it is called axiology or ethics.
From the en.wikipedia.org
Blaga's metaphysical axiology also follows this conception.
From the en.wikipedia.org
Political philosophy can also be understood by analysing it through the perspectives of metaphysics, epistemology and axiology.
From the en.wikipedia.org
In formal axiology, Robert S. Hartman contended that being ideal means that something is the best member of the set of all things of that class.
From the en.wikipedia.org
More examples
The study of values and value judgments
(axiological) of or relating to the study of values
Axiology (from Greek u1F00u03BEu03AFu1FB1, axiu0101, "value, worth"; and -u03BBu03CCu03B3u03BFu03C2, -logos) is the philosophical study of value. It is either the collective term for ethics and aestheticsu2014philosophical fields that depend crucially on notions of worthu2014or the foundation for these fields, and thus similar to value theory and meta-ethics. The term was first used by Paul Lapie, in 1902, and Eduard von Hartmann, in 1908.
Axiology is the second album by American Progressive rock band Thanatopsis, released on July 10, 2003.
(axiologist) A person, especially a philosopher, who studies theory of value
That branch of philosophical inquiry regarding values, usually divided into the two categories of aesthetics and ethics.