It's a place where there's a fold in the geologic stratum that collects water and fills to the roof.

But in any discussion of the forces governing the process of capital accumulation, the manner in which the richest stratum of society acquires and uses its income appears to be of particular significance.

R evolutions give birth to a new political class, and Iran s Islamic revolution was no exception. The Iranian leadership formed after the revolution consisted of a narrow ruling stratum and a much broader supporting group that was given charge of administration and political mobilization.