Knowledge is becoming the one critical factor of production.

However, we've never heard them trumpet the free movement of the other mobile factor of production, namely labour.

The traditional factors of production - land, labor, and capital - are becoming restraints rather than driving forces.

How may we explain the socialist's tendency to overestimate the importance of labor, and to underestimate the value of other factors of production?

It could continue to render service only by cutting down the returns to the factors of production,-bylowering profits, and especially by pressing down wages.