Simon Johnson wrote the article What Is Wrong With Cutting Taxes? for The New York Times and posted it on his web site The Baseline Scenario.

But our “fiscal space” is limited – we cannot afford to blithely increase our national debt. It can be done – and should be done given the parlous state of our economy and our disastrously high unemployment levels. But it must be done carefully, so we get as much stimulative effect on jobs as possible for our debt-increase dollars.

Cutting taxes for the very rich is an ineffective way to stimulate the economy in the short term…

In this post, he also has links to more details including his discussion with Rachel Maddow.