Response To Manzi On Stimulus | The New Republic - 0 views
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I was arguing that the precise effect of the stimulus can't be measured. That doesn't mean we have no idea whether it worked. There is a general, though not unanimous, consensus within the economic field that increasing spending or reducing taxes temporarily increases economic growth. Basically, we do know the rules -- increasing the deficit in order to pave some roads and cut taxes for middle-income people will increase the size of the economy; the primary debate is just how much.
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the conservative movement has invested a great deal of time into throwing cold water on this basic consensus. I think this campaign should be viewed as largely political. Private forecasters unanimously believe that fiscal stimulus can temporarily boost growth. They give no credence whatsoever to the various right-wing alternative models in which fiscal stimulus does not boost growth. Moreover, in 2001, when the objective case for fiscal stimulus was much weaker, there was no real debate about the efficacy of fiscal stimulus. The fact that Republicans are fiercely contesting the merits of fiscal stimulus now, while almost nobody was doing so when the case was much weaker in 2001, suggests that the right's skepticism is a political phenomenon.
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Manzi's analogies of flying in an airplane assume is that there's some safe, default option -- staying on the ground, keeping away from the casino. That isn't a realistic way to think about economics. Doing nothing in the face of economic catastrophe is a policy choice. To the extent that it's been "tested," it's been shown to produce terrible results.