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CPI: Difference between revisions
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|usernameurl=https://x.com/EricRWeinstein | |usernameurl=https://x.com/EricRWeinstein | ||
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|content=A3 Cont.: As Ken Arrow challenged us âFrisch showed we canât solve the bilateral index problem because a single agent at multiple points in time is *exactly* dual to multiple agents at a single instant of time. Which is exactly my âImpossibility Theoremâ in Social Choice. QED.â | |content=A3 Cont.: As [[Ken Arrow]] challenged us âFrisch showed we canât solve the bilateral index problem because a single agent at multiple points in time is *exactly* dual to multiple agents at a single instant of time. Which is exactly my âImpossibility Theoremâ in Social Choice. QED.â | ||
|timestamp=4:05 PM · Nov 6, 2022 | |timestamp=4:05 PM · Nov 6, 2022 | ||
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|usernameurl=https://x.com/EricRWeinstein | |usernameurl=https://x.com/EricRWeinstein | ||
|username=EricRWeinstein | |username=EricRWeinstein | ||
|content=A3 Cont.: âThis is why index numbers will one day be properly understood as parallel translation in Fiber Bundles wrt Economic Gauge Potentials. But Zoe doesnât become Cam morphing into Fatima when voting. So parallel transport is unavailable. Even in topological social choice.â | |content=A3 Cont.: âThis is why index numbers will one day be properly understood as parallel translation in [[Bundles|Fiber Bundles]] wrt Economic Gauge Potentials. But Zoe doesnât become Cam morphing into Fatima when voting. So parallel transport is unavailable. Even in topological social choice.â | ||
|timestamp=4:05 PM · Nov 6, 2022 | |timestamp=4:05 PM · Nov 6, 2022 | ||
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|content=Q4: Why do you say indexes are Group-Valued? Isnât inflation just a number? | |content=Q4: Why do you say indexes are Group-Valued? Isnât inflation just a number? | ||
A4: Here goes. In the most famous case you *can* get away with a number. But that 8.9% style CPI nonsense is actually secretly a 1x1 matrix in GL(1,R). And that actually matters! Why? B/c Non-linearity. | A4: Here goes. In the most famous case you *can* get away with a number. But that 8.9% style [[CPI]] nonsense is actually secretly a 1x1 matrix in GL(1,R). And that actually matters! Why? B/c Non-linearity. | ||
|timestamp=4:05 PM · Nov 6, 2022 | |timestamp=4:05 PM · Nov 6, 2022 | ||
}} | }} | ||