commodity markets are rigged up
a few big players steer the price path
that oughta be the thesis to be refuted ...eh ?
pk has simply assumed adequate seller competition
...... enough producer/sellers pushing price quickly
down to marginal cost of production ...at all times
this amounts in reality
to chronic over supply conditions
if elasticity is low enough how can that condition ever last long
so long as adding supply has such a long " pipe line "
