![Peter Williams on Twitter: "It's worth stressing the importance of multi-factor estimates of the output gap. Those which depend primarily on the Phillips Curve require very precise specification of an imprecise concept. Peter Williams on Twitter: "It's worth stressing the importance of multi-factor estimates of the output gap. Those which depend primarily on the Phillips Curve require very precise specification of an imprecise concept.](https://pbs.twimg.com/media/DuEUko2W4AAYfJF.jpg)
Peter Williams on Twitter: "It's worth stressing the importance of multi-factor estimates of the output gap. Those which depend primarily on the Phillips Curve require very precise specification of an imprecise concept.
![PDF] The US-UK productivity gap in the twentieth century: from technology and population perspectives | Semantic Scholar PDF] The US-UK productivity gap in the twentieth century: from technology and population perspectives | Semantic Scholar](https://ai2-s2-public.s3.amazonaws.com/figures/2017-08-08/70a0189bb99acfa53d45fb76b06fc541ee1c825c/8-Figure2-1.png)
PDF] The US-UK productivity gap in the twentieth century: from technology and population perspectives | Semantic Scholar
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Escaping the Guillotine: The Gap between the Crimes Punishable by Death and the Effective Death Sentences (France, 20th Century) | Semantic Scholar
![John P. Hussman on Twitter: "1/2 Leave aside the valuation measure they're using for equities, even if we use one that's actually well-correlated with subsequent returns, you can see what's going on John P. Hussman on Twitter: "1/2 Leave aside the valuation measure they're using for equities, even if we use one that's actually well-correlated with subsequent returns, you can see what's going on](https://pbs.twimg.com/media/EQIpdDmX0AAQC7u.jpg:large)