There is no easy answer....... the world economy is in such a state of confusion no two economists can agree on a solution.
What we need is a complete shift in human consciousness...
When 80% of the worlds wealth is controlled by 10% of the population what we have is a dictatorship in disguise.
That problem has to be addressed first and foremost. Mankind needs to shift - there is abundance in the universe so mankind needs to start learning to "Give up the struggle to survive and learn to love life and love living."
Unless we move in that direction - the current economic systems (globally) will continue to feed the rich - starve the poor and eliminate the middle class everywhere.
my hub Middle Class to Zero shares more on this topic.