This system worked well until social and commercial mobility increased.

WE like to believe this is a nation of great social mobility.

These should be the focus of concerns about social mobility.

That would have increased social mobility at a critical moment.

True social mobility means for every person who moves up, someone must move down.

Money, social mobility and more access to higher education have changed all that.

Should social mobility, whatever that is, be an end in itself?

I doubt it will have much effect, if any, on social mobility.

Status can be changed through a process of social mobility.

There was almost no chance at social mobility for either men or women, though.