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DTSTART:20250330T010000
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DTSTART;TZID=Europe/Helsinki:20250512T121500
DTEND;TZID=Europe/Helsinki:20250512T133000
DTSTAMP:20260710T073446
CREATED:20250321T101636Z
LAST-MODIFIED:20250507T054906Z
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SUMMARY:Yuriy GORODNICHENKO (UC Berkeley and NBER) "The Causal Effects of Inflation Uncertainty on Households' Beliefs and Actions"
DESCRIPTION:[vc_row][vc_column][vc_column_text]Macro seminar\nTime : 12h15 – 13h30 \nDate :12th  May 2025 \nSalle 3001 \nYuriy GORODNICHENKO (University of California) “The Causal Effects of Inflation Uncertainty on Households’ Beliefs and Actions” \nAbstract:We implement a survey-based randomized information treatment that generates independent variation in the inflation expectations and the uncertainty about future inflation of European households. This variation allows us to assess how both first and second moments of inflation expectations  separately affect subsequent household decisions. We document several key findings. First\, higher inflation uncertainty leads households to reduce their subsequent durable goods purchases for several months\, while a higher expected level of inflation increases them. Second\, an increase in uncertainty about inflation induces households to tilt their portfolios towards safe and away from riskier asset holdings. Third\, higher inflation uncertainty encourages household job search consistent with a strong precautionary motive for labor supply\, leading to higher subsequent employment among the unemployed and less part-time employment among the alreadyemployed. Finally\, we document that the level of inflation expectations has a different effect from uncertainty in inflation expectations and thus it is crucial to take into account both to measure their separate effects on decisions and in policy communication.  \nJoint work : Dimitris Georgarakos (European Central Bank and CEPR)\, Olivier Coibion (UT Austin and NBER)\, Geoff Kenny (European Central Bank) \nOrganizer : Giovanni RICCO \n
URL:https://crest.science/event/yuriy-gorodnichenko-university-of-california-t-b-a/
CATEGORIES:Macroeconomics,Seminars
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DTSTART;TZID=Europe/Helsinki:20250512T140000
DTEND;TZID=Europe/Helsinki:20250512T140000
DTSTAMP:20260710T073446
CREATED:20250318T071755Z
LAST-MODIFIED:20250502T130633Z
UID:17967-1747058400-1747058400@crest.science
SUMMARY:Yury POLYANSKIY (MIT) - Optimal Quantization for LLMs and Matrix Multiplication
DESCRIPTION:Statistical Seminar: Every Monday at 2:00 pm.\nTime: 2:00 pm – 3:00 pm\nDate: 12th May\nPlace: 3001 \n  \nYury POLYANSKIY (MIT) – Optimal Quantization for LLMs and Matrix Multiplication \n  \n Abstract:  \nThe main building block of large language models is matrix multiplication\, which is often bottlenecked by the speed of loading these matrices from memory. A number of recent quantization algorithms (SmoothQuant\, GPTQ\, QuIP\, SpinQuant etc) address this issue by storing matrices in lower precision. We derive optimal asymptotic information-theoretic tradeoff between accuracy of the matrix product and compression rate (number of bits per matrix entry). We also show that a non-asymptotic version of our construction (based on nested Gosset lattices and Conway-Sloan decoding)\, which we call NestQuant\, reduces perplexity deterioration almost three-fold compared to the state-of-the-art algorithms (as measured on LLama-2\, Llama-3 with 8B to 70B parameters). Based on a joint work with Or Ordentlich (HUJI)\, Eitan Porat and Semyon Savkin (MIT EECS). \n  \n  \nOrganizers: \nAnna KORBA (CREST)\, Karim LOUNICI (CMAP) \, Jaouad MOURTADA (CREST) \nSponsors:\nCREST-CMAP \n
URL:https://crest.science/event/yury-polyanskiy-mit-tba/
CATEGORIES:Seminars,Statistics
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