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All well and good, still, the perception and reality I don't think match. I've had this conversation many times where people just instinctually cite 'oh Japan is in decline, doing really poorly, etc', and then I tell them they are 3rd highest GDP in the world, had a huge growth wave in the mid-2010s and I get pikachu-face shocked reactions. Even here, I think you're falling for the meme.

Here's a better graph: https://imgur.com/a/2QI5E41

It's funny, your graph cuts off right before it, and is a perfect example of extrapolating too soon. It's that one big recession dip, and since then are doing better, and before that doing better. More spurts, higher angles recently.



My graph cuts off at the same time (2019).

I think there is some misunderstanding here about reading a graph for growth rate. Anything that starts off higher is likely to have "higher angles" even if it shows a lower growth rate. Which looking at the numbers, we see-- we already did the arithmetic a couple posts ago. Part of why the per capita series looks so bad: it starts at about the same value so the effect of a higher baseline is not so misleading.

The debt to GDP problem, combined with anemic GDP growth and population structural factors that make high growth unlikely for a century, combine to be a big concern that you haven't addressed. Instead you handwave at graphs in a way that doesn't boost anyone's understanding.


I think Germany taking two decades to catch up combined with Japans higher growth outside the recession looks better, I’d bet Japan next decade based on a lot of things, mostly software and tech. The debt may be a factor, but that’s a hypothesis not a fact so you should state it as such, it’s not stopped other countries from defaulting.

Easy to endlessly discuss this though, but without good faith on your side it won’t go anywhere useful.

I stand strongly by the point that anyone spouting Japan stagnation memes is just repeating shallow media talking points that are outdated and don’t reflect reality on the ground... yea, stagnation from a trajectory to be bigger than the US in GDP from a tiny island nation. Without so so many of the problems of the US. The quality of life there is incredibly high, they’re incredibly rich, they’re adjusting many soft factors to be better to work, women, and newer economic abilities.

It’s very roughly like if everyone went around talking about how Ferrari is stagnating, when they’ve had 2/5 popular cars in the last decade (incl one this year) and most other carmakers had 3/5 (but most none this year). Ok, maybe you can argue that, and I wouldn’t agree but fine, but it’s still a Ferrari and the rest of the world is driving Kia. The meme has gotten so strong people are actually out there now thinking Kia > Ferrari. I’m just bringing perspective to how it feels day to day there.


Where is the higher growth? I divided 2019 by 2009 GDP much earlier in the thread for the two countries we are talking about, and got a smaller number for Japan.

Don't accuse me of bad faith when you will not address this point. You keep telling me about higher or similar growth when the numbers do not support it.

As to the debt picture: it becomes more difficult to grow GDP to cover large debt when the working age population is destined to shrink relatively sharply. The demographic squeeze isn't a opinion or theory-- it is a certainty. Even liberalizing immigration policy would not be enough now, and there have only been the tiniest steps in that direction.

I would have been on the opposite side of this argument for a long time-- enthusiastic and optimistic for Japan's economics trends to improve, and a fan of many of the country's institutions. But at this point, there has been decades of underperformance-- yes, from a track to outpace the US's GDP on an absolute level to now being 2/3rds of it on a per-capita basis, with ongoing slower growth and terrible demographic trends.

The dependency ratio is going to be 0.79 people 65+ for every person 20-64 in 30 years, and the overall population will be 25% smaller. The working age population will be 33% smaller. This is a very difficult environment to have significant absolute growth in.

And, again, comparing to Germany is silly... because many of us are also concerned about the same factors-- underperforming growth, demographic shifts -- in Germany.


Germany isn’t doing bad.

Here’s your same PPP/GDP graph with a bunch of first world nations, the USA Uk etc + Mexico and Russia, last 5 years or so.

Please point out the Japan line which should by your argument be an even semi obvious outlier.

https://ibb.co/Btm0ymb

All I’ve claimed is at best you can say they are slightly below average for a first world nation, and still very high in absolute terms. To refute, you’d have to show that they are significantly lagging, not just a little as that’s not been my claim ever. It’s just not there. The hype is real.


> Please point out the Japan line which should by your argument be an even semi obvious outlier.

It's like you don't understand my main point: it is difficult to judge differences growth on a linear scale graph. It's like the dishonest COVID-19 graphs early on which showed coronavirus in comparison to other causes of death, and you couldn't see exponential growth it looked boring.

That's why sometimes it's useful to use a log scale, or to just divide the numbers and compare them, to understand rates of growth.

I think I see why we disagree: your entire argument is based on eyeballing (misleading, linear) graphs instead of comparing numbers. I have hit this point 4 times in the thread so far, and you keep making an argument based on eyeballing graphs.


You should be a politician! Incredible work.

Log scale is absolutely not the right measure, actually didn’t even see that nifty trick because I would never have expected it used! No wonder your graph looked totally wrong. Log scale would work if they were staying constant so we could compare on long time scales, but that’s so far from the case. If you can’t admit that, we can’t have a discussion. You really should know that to be talking about this stuff.

These are close values that are fluctuating too much. The swings over the last 10 years is relevant, in absolute values. I can write the numbers out for you, but the graphs are actually less refutable. You insinuate they aren’t, but they are they’re than numbers for this use: comparing relative performance. We want to see how they all are doing, in a straightforward comparison.

No, my point is you’re choosing your window very selectively and distorting the numbers to fit your narrative, and when I take the window away your point doesn’t stand, as it doesn’t


When one wants to compare growth rates between things with different starting points, one uses a logarithmic scale.

Things growing at the same rate are parallel then.

I compared things on a 30 year, 20 year, and 10 year timescale. On each of them, Germany significantly outperformed Japan.


The premise and conclusion are wrong. You want to compare the whole picture not just growth form your arbitrary start at the peak of a mountain (your false framing). And you can just adjust them to the same Y axis, no need for log. We care about the marginal dollar.

You’re doing a lot of work avoiding looking at the graph I posted in earnest. It’s the right graph, and again you can’t choose an outlier.


I strongly disagree it's the right graph. I wonder if you're just trolling at this point. Comparing growth rates of countries by looking at absolute values of dollars from countries of different sizes is madness.

I've given you 5 different framings at this point:

* Real GDP PPP % change over 30, 20, and 10 years to the most recent fully reported year. * Share of high-income country GDP over last 20 years * Per capita PPP GDP over 30 years, where it slid from parity with Germany in 2005 to about 80% of Germany's.

But they're all bad in favor of looking at a linear scale graph, where starting from a higher value in the green series obscures that the percentage of growth is low compared to most of the members of the set.

If you're determined to believe a specific conclusion, there's not much point in discussion.


The second graph I posted is GDP PPP, please tell me how the light blue line is an outlier.


This is how things look, as far as shares of upper-income country GDP: https://i.imgur.com/CaUcjcH.png

This is a reasonable graph to "eyeball" because it's not distorted significantly by starting point or overall underlying growth trend.

Neither Germany nor Japan looks great, and Japan looks worse. Then you consider Japan has 1.5x the population and a lower per-capita GDP...




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