*Merriam-Webster also omitted the term the "[[invisible hand]]" until the late 1990s, although the term has been in popular use since shortly after its introduction by [[Adam Smith]]. In contrast, new liberal terms are quickly added; for example "green-collar" was added in 2009 only three years after it came into common use. | *Merriam-Webster also omitted the term the "[[invisible hand]]" until the late 1990s, although the term has been in popular use since shortly after its introduction by [[Adam Smith]]. In contrast, new liberal terms are quickly added; for example "green-collar" was added in 2009 only three years after it came into common use. |