The name leap year probably comes from the fact that while a fixed date in the Gregorian calendar normally advances one day of the week from one year to the next, the day of the week in the 12 months following the leap day (from March 1 through February 28 of the following year) will advance two days due to the extra day (thus leaping over one of the days in the week).
DEFINITION of 'Return'. The gain or loss of a security in a particular period. The return consists of the income and the capital gains relative on an investment. It is usually quoted as a percentage.
Transformation in economics refers to a long-term change in dominant economic activity in terms of prevailing relative engagement or employment of able individuals.). Accelerating productivity growth rates speed up the transformations, from millennia, through centuries, to decades of the recent era. It is this acceleration which makes transformation relevant economic category of today, more fundamental in its impact than any recession, crisis or depression.