This Is Why I Call Supply-Side Economics "Tinkle-Down"

"The last four and a half decade has seen an absolutely massive rise in inequality with the top gaining an ever increasing share of the gains from growth. In the last two decades, actually, all economic gains have gone to the top 10%

"This is actually a massive, decades-long economic experiment about the validity of trickle-down economics, and it is difficult to escape the conclusion that it hasn't materially increased business investment nor economic growth."

In detail, and with several historical graphs, the full monty on why this Republican Tax Bill is bogus. 

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Let A Real Political Debate Begin: Economic Theory

Finally, after all of the peripheral activity since the US political conventions, Trump presented the Republican classical "Trickle-Down"/"Supply Side" economic position.  Following are links supporting my contention that this position does not add to the GDP or help the poor or middle class.  Chime in (with evidence) if you disagree.

"Trickle Down Economics" Is A Failure - Period

Economics is called the "Dismal Science" for a reason:  there are many interacting social and political forces combined with biased research data.  However, just as with tobacco and climate change, good research is now coming in on "Trickle down economics."

The Laffer Curve/Supply Side Economics

There is a reason why economics has been called The Dismal Science.  The effect of raising or lowering tax rates on government revenue is not as clear as many conservative politicians claim.

The relationship between rates of taxation and the resulting levels of government revenue.