Lorenzo Magnolfi
@lore_magno
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RT @RanShorrer: Looking forward to our #ASSA2025 session, Friday 10:15 in Parc 55. I’ll be presenting this paper⤵️
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RT @nberpubs: Pass-through determines instrument relevance for inference on firm conduct, and “twice-cost” pricing describes the Washington….
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Blazing-fast image creation – using just your voice. Try Grok Imagine.
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RT @qe_editors: When testing models of firm conduct, weak instruments can threaten inference. We develop a framework to understand instrume….
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RT @BeckerFriedman: Short thread on new working paper, “The Economics of Rollover Lotteries," from @ChicagoBooth's @GioCompiani, @lore_magn….
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Great episode - and great research by Chris Sullivan 🍦🍨.
Have you noticed? — .Häagen-Dazs has a lot of smooth flavors (vanilla, pistachio).Ben & Jerry’s does chunky (Chunky Monkey, The Tonight Dough, Phish Food). But what if that's by design? We go inside an ice cream cone-spiracy:.
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You find the package at: docs, tutorial, and library of models: paper: . We hope other researchers find it useful and use it! Let us know of any comments/extra features you’d like to see. [5/5].
github.com
Python code for the procedure in Duarte, Magnolfi, Sølvsten, and Sullivan (2023) to test firm conduct. - anyatarascina/pyRVtest
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The package builds on PyBLP -- you supply PyBLP demand estimates, as well as cost shifters, instruments, models from our library to test, and the code does the rest (runs Rivers and Vuong (2022) test with SE adjustments, our F-statistic for instrument strength, etc.) [4/5]
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The package implements the results in our paper making it easy to run tests for firm conduct in markets for differentiated products when marginal costs are not observed --- yes, you can do that! See Bresnahan (1982), Berry and Haile (2014) [3/5]
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We (me + amazing @anya_tarascina, Marco Duarte, Mikkel Sølvsten, and Chris Sullivan) contribute to this trend with a new Python package – pyRVtest. The package is designed to test firm conduct – key goal of the original NEIO program, super relevant to many fields [2/5]
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*Package Launch*.One of my favorite trends in empirical IO is the increasing availability of portable code to estimate structural models – see PyBLP @conlon_chris @jeff_gortmaker, several packages by @jamesbrandecon. This is key to make IO tools accessible (also outside IO) [1/5].
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RT @EIEF_Rome: Tomorrow we host the 5th Eief Junior Applied Micro Workshop. We are looking forward to a two-day event with our great speake….
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RT @WIeconomics: In his job market paper, Marco shows that when competing firms conspire to raise retail prices with the help of an upstrea….
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Looking forward to it!.
The next speaker at the @cepr VIOS seminar will be @lore_magno (@UWMadison) on "The Competitive Conduct of Consumer Cooperatives" (top title!), discussion by Helena Perrone (Mannheim) and Howard Smith (Oxford). Wed May 6 at 4pm CET. Registration/info at:
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RT @bjfogg: A company asked for my 2020 prediction. Here it is (please don't be offended): . A movement to be “post-digital” will emerge in….
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RT @florianederer: Fascinating paper by Qianyu Mao about the negative impact on consumer welfare of the merger between 2nd (Unilever) and 3….
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RT @TheRideshareGuy: Lol neither of these companies do that. Uber is basically a taxi company now and airbnb is basically a hotel chain. ht….
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Top notch journalism.
More than a year ago, I was asked to do the impossible. Help build an algorithm that could tease out what statehouse bills were created from model legislation (ie copy-paste legislation). Along with a terrific team @USATODAY and @azcentral. We did it. Here’s how. (THREAD).
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RT @chopraftc: To fix our health care system, we need more than good coverage for everyone. We also need to make sure anticompetitive merge….
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