It takes the Earth one year to orbit the Sun and it takes Mars about 1.9 years (say 2 years for easy calculation) to orbit the Sun. The elliptical orbit which carries you from Earth to Mars is longer than Earth's orbit, but shorter than Mars' orbit.
Equity theory was first developed in 1963 by John Stacey Adams, a workplace and behavioral psychologist, who asserted that employees seek to maintain equity between the inputs that they bring to a job and the outcomes that they receive from it, against the perceived inputs and outcomes of others.
In order to remedy such injustices, the law of equity (or, earlier, of âconscienceâ) was developed. The principle of equity was as old as the common law, but it was hardly needed until the 14th century, since the law was still relatively fluid and informal.