For healthcare it might be getting to the point where the numbers are nearly incomparable. PPP seems like it'd be more inappropriate than usual for measuring a

For healthcare it might be getting to the point where the numbers are nearly incomparable. PPP seems like it'd be more inappropriate than usual for measuring a particular industry. US healthcare is known to be quirky. Although there doesn't seem to be any obvious evidence here that the US could be lagging behind. Per-person the US is still a bit of a productivity outlier to the upside. When they aren't legislatively restrained they tend to work hard and in an organised way.