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Re: Debt-o-phobia
Well, you did. And so did Reinhart & Rogoff.
When you have a correlation like that, there are four possible answers:
1. A caused B
2. B caused A
3. Something else caused both A and B
4. The correlation is just a coincidence.
I read R&R's paper. They were more cautious with their conclusions than the media was, but it was clear that they blamed slow growth on the debt ratio, and not vice versa. The media, always on the lookout for sensational stories, and the Republicans, always on the lookout for anything that backs up their professed desire to cut deficits whenever there is a Democrat in the Oval Office, were the ones that really pushed the story line that there was a magic debt ratio, and we were fast approaching it. And it was an easy sell, because everybody thinks that debt is bad, and debt is debt, so this debt must be bad, too.
But R&R never had a good explanation of why growth should slow down at 90% debt-to-GDP. They just saw a correlation. (I thought it was a pretty weak paper.)
But a simple, logical explanation can explain the same data, and the same correlation: slow growth leads to lower-than-expected tax revenues, which leads to higher deficits (because spending really doesn't change that much). And there are some very good papers by some very degreed economists that made that very interpretation.
Now - what is the mechanism by which a 90% debt-to-GDP ration would cause slow growth? Let's put your answer up against my answer, and see which one makes more sense.
I don't think I did that at all.
Well, you did. And so did Reinhart & Rogoff.
When you have a correlation like that, there are four possible answers:
1. A caused B
2. B caused A
3. Something else caused both A and B
4. The correlation is just a coincidence.
I read R&R's paper. They were more cautious with their conclusions than the media was, but it was clear that they blamed slow growth on the debt ratio, and not vice versa. The media, always on the lookout for sensational stories, and the Republicans, always on the lookout for anything that backs up their professed desire to cut deficits whenever there is a Democrat in the Oval Office, were the ones that really pushed the story line that there was a magic debt ratio, and we were fast approaching it. And it was an easy sell, because everybody thinks that debt is bad, and debt is debt, so this debt must be bad, too.
But R&R never had a good explanation of why growth should slow down at 90% debt-to-GDP. They just saw a correlation. (I thought it was a pretty weak paper.)
But a simple, logical explanation can explain the same data, and the same correlation: slow growth leads to lower-than-expected tax revenues, which leads to higher deficits (because spending really doesn't change that much). And there are some very good papers by some very degreed economists that made that very interpretation.
Now - what is the mechanism by which a 90% debt-to-GDP ration would cause slow growth? Let's put your answer up against my answer, and see which one makes more sense.