That's the same market exchange rate series from FRED. World Bank is where FRED gets that data.
Your problem is with the research I linked to, not with my PPP numbers. You're arguing that the PPP threshold for the immigration/PPP function should be inflation-adjusted. You should check the paper I linked to and see what they say about that.
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Also note that since U.S. inflation has been low for a while, real per capita PPP income in El Salvdor HAS doubled. Now I must fly on a plane. I have dealt successfully with this failed attempt at critique. My numbers are correct. (end)
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That paper uses "Real GDP per capita is in 2005 PPP US$". That is 2005 PPP US$, NOT current PPP US$. That's my point. The paper you're citing does the sensible thing and inflation adjusts. Your graph does not inflation adjust.pic.twitter.com/QvZdz0yxQX
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I very much suggest a 2nd opinion. '2005 PPP US$' isn't the same thing as 'current PPP US$.' It matters.https://twitter.com/Noahpinion/status/1054394152962600960 …
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Hey! Sorry I snapped at you before; that was uncalled for. Anyway, I'm glad you now see that the "constant GDP" numbers you were citing earlier are market-exchange-rate numbers and not PPP.
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Your new critique - that I failed to adjust for inflation when comparing current-dollar PPP numbers to the 2005$PPP numbers in the paper I cited, is correct. BUT, it doesn't make much of a QUANTITATIVE difference. Let's look at some numbers.
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U.S. inflation, as measured by the GDP deflator, was about 21.2% (cumulative) between 2005 and 2016. You can check that here:https://fred.stlouisfed.org/series/GDPDEF
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Now, taking the $8900 2016 current international $ PPP number from my graph (source: CIA World Factbook https://www.indexmundi.com/g/g.aspx?c=es&v=67 …), and deflating it by the U.S. GDP deflator back to 2005, we get $7343 for 2005.
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That is right at the peak of the curve identified by
@m_clem in this paper: http://ftp.iza.org/dp8592.pdf (Of course, there is uncertainty in that estimate and the curve may change over time; fine.) -
So because El Salvador is right at the peak of the curve
@m_clem identified, and when we add in the fact that El Salvador is already below replacement fertility, I'd say our best guess is that Salvadoran immigration pressure will fall starting now. - 8 more replies
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