Key points are not available for this paper at this time.
Ronald Inglehart, Wayne E. Baker, Modernization, Cultural Change, and the Persistence of Traditional Values, American Sociological Review, Vol. 65, No. 1, Looking Forward, Looking Back: Continuity and Change at the Turn of the Millenium (Feb., 2000), pp. 19-51
Inglehart et al. (Tue,) studied this question.