What economic factors helped to cause the collapse of the Han Dynasty?Economic Han

One of the most imporant economic factors that caused the
fall of the Han Dynasty was taxation.

By the time that the
Han Dynasty was getting weaker, it was unable to tax many of its subjects.  This was
because it was not strong enough to force them to pay their taxes or to give the labor
that they owed the government.  When this happened, the central government had to
increase the levels of taxation that it imposed on the people that it did control.  As
the government did this, those people tended to leave (when possible) the territory that
the central government controlled.  As this happened, the government came to have less
and less money to use for things like maintaining its military
strength.

In this way, the Han Dynasty lost its economic
power, thus hastening its decline.