Contrary to the Romney campaign's promises, a former economic adviser to President Ronald Reagan says that Mitt Romney's tax plan just won't revive the economy.

"The idea that tax reform will jump-start an economy suffering from the after-effects of a cyclical downturn is nonsense," Bruce Bartlett wrote in a New York Times blog post on Tuesday. "There is little reason to think we will see tax reform any time soon, and even if Mr. Romney’s plan is enacted as proposed the growth effect will be small to nonexistent."

Barlett noted that the economy continued to grow at roughly the same rate after Reagan's own tax reform in 1986, adding that economists agree Reagan's 1986 tax reform had little impact on economic growth. Bartlett also wrote last year that tax cuts for the wealthy and for corporations did not help stimulate the economy under President George W. Bush, and that "there is no reason to believe" that the same policies would help stimulate the economy today.

The Romney campaign claims that its tax plan would create 7 million jobs, and that its overall economic plan will create 12 million jobs. But the Romney campaign based the 7 million job figure on one's economist's projection of job growth over the next 10 years, not the next four, according to the Washington Post.

Some economists even have found that Romney's budget plan would destroy jobs, not create them, when taking into account his plan to slash government spending by 18 to 26 percent. The left-leaning Economic Policy Institute estimates that Romney's budget plan would destroy 1.9 million jobs over the next two years. The left-leaning Center for American Progress estimated in a report released Tuesday that Romney's plan would destroy at least 360,000 jobs next year alone.

A number of experts say that Romney's tax plan is not even mathematically possible, a sentiment echoed by Vice President Joe Biden during the vice presidential debate last week. The Tax Policy Center recently concluded that the numbers in Romney's tax plan don't add up unless the government raises taxes on the middle class. And Mark Zandi, chief economist at Moody's Analytics, recently said on CNN that with Romney's tax plan, "the arithmetic doesn't work as it is right now."

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  • Paul Krugman

    <a href="http://krugman.blogs.nytimes.com/2012/08/10/culture-of-fraud/">The Nobel Prize-winning economist wrote</a> in a New York Times blog post in August: "Romney’s tax plan is now a demonstrated fraud — big tax cuts for the rich that he claims would be offset by closing loopholes, but the Tax Policy Center has demonstrated that the arithmetic can’t possibly work."

  • Matt Taibbi

    Matt Taibbi, contributing editor to Rolling Stone, <a href="http://www.rollingstone.com/politics/blogs/taibblog/the-vice-presidential-debate-joe-biden-was-right-to-laugh-20121012">wrote in a recent blog post </a>: "If you're going to offer an across-the-board 20 percent tax cut without explaining how it's getting paid for, hell, why stop there? Why not just offer everyone over 18 a 1965 Mustang? Why not promise every child a Zagnut and an Xbox, or compatible mates for every lonely single person?"

  • Larry Summers

    Harvard economist Larry Summers, a former top adviser to President Barack Obama, <a href="http://www.huffingtonpost.com/2012/10/11/larry-summers-romney-tax-plan_n_1958982.html">recently compared Mitt Romney's tax plan</a> to a hamburger and ice cream diet. He said: "It’s easy to say that 'My plan is to eat ice cream sundaes and chocolate cake and hamburgers as much as I want, my plan is to lose 60 pounds, and my plan is to avoid painful exercise, and those are all my objectives and I'm committed to every one of them.'"

  • The Tax Policy Center

    <a href="http://www.taxpolicycenter.org/publications/url.cfm?ID=1001628">The Tax Policy Center</a>, a nonpartisan, nonprofit think tank, <a href="http://www.huffingtonpost.com/2012/09/11/romney-tax-plan-middle-class_n_1874113.html">recently concluded</a> that Mitt Romney's tax plan is mathematically impossible without raising taxes on the middle class.

  • Josh Barro

    <a href="http://www.bloomberg.com/news/2012-10-12/the-final-word-on-mitt-romney-s-tax-plan.html">Bloomberg View columnist Josh Barro wrote</a> in a recent column that the six studies that the Romney campaign uses to claim the candidate's tax plan is mathematically possible "individually and collectively...fail the task."

  • Mark Zandi

    <a href="http://thinkprogress.org/economy/2012/10/12/1004921/zandi-romney-tax-plan/">Mark Zandi</a>, chief economist at Moody's Analytics, recently said on CNN that when it comes to Romney's tax plan, "the arithmetic doesn't work as it is right now."

  • Ezra Klein

    <a href="http://www.washingtonpost.com/blogs/ezra-klein/wp/2012/08/04/romney-tax-plan-on-table-debt-collapses-table/">Washington Post columnist Ezra Klein wrote in August</a> that "the Tax Policy Center’s analysis has removed all doubt" that Romney's tax plan is mathematically impossible.

  • David Frum

    <a href="http://www.thedailybeast.com/articles/2012/10/11/vice-presidential-debate-live-blog.html">David Frum</a>, contributing editor at Newsweek and The Daily Beast, recently wrote: "Romney's tax cut plan doesn't work. I'm a Republican, I support Romney, etc. But you can't cut that much in such a stagnant economy and expect to break even. Even with a deductions cap, it just won't happen."

  • Catherine Rampell

    Catherine Rampell, economics reporter at The New York Times, wrote of the <a href="http://economix.blogs.nytimes.com/2012/10/01/the-math-on-the-romney-ryan-tax-plan/">the Romney campaign's tax promises</a> in a recent blog post: "Not <em>all</em> of those principles can coexist so long as basic arithmetic survives."