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Lars Pålsson Syll
Professor at Malmö University. Primary research interest - the philosophy, history and methodology of economics.

Lars P. Syll

Inkomstskillnaderna fortsätter öka

Maktelitens genomsnittliga inkomster före skatt motsvarade 19,9 industri-arbetarlöner 2019, det är samma skillnad som i fjolårets undersökning vilket är den största skillnaden som uppmätts sedan undersökningens startår. År 1950, denna undersöknings första år, motsvarade maktelitens genomsnittliga inkomst 11,1 industriarbetarlöner. 1980 var skillnaden i inkomster mellan maktelit och industriarbetare som minst, maktelitens genomsnittliga inkomst motsvarade då 4,9...

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(S) sviker — åter igen — i friskolefrågan

(S) sviker — åter igen — i friskolefrågan Igår meddelade regeringen att den vill skärpa reglerna för religiösa friskolor. Skolminister Lina Axelsson Kihlbom påstod att detta skulle vara “ett viktigt steg för att återta den demokratiska kontrollen i skolan.” Herre du min milde! Och detta grodors plums och ankors plask ska man behöva höra år 2022. Man tager sig för pannan. Att religiösa friskolor över huvud får förekomma i Sverige år 2022 är djupt...

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LATE calculation (student stuff)

LATE calculation (student stuff) .[embedded content] As Scott Cunningham has it in Causal Inference: The Mixtape: How do you know when you have a good instrument? … A necessary but not sufficient condition for having an instrument that can satisfy the exclusion restriction is if people are confused when you tell them about the instrument’s relationship to the outcome.

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Causality in econometrics

.[embedded content] A popular idea in quantitative social sciences is to think of a cause (C) as something that increases the probability of its effect or outcome (O). That is: P(O|C) > P(O|-C) However, as is also well-known, a correlation between two variables, say A and B, does not necessarily imply that that one is a cause of the other, or the other way around, since they may both be an effect of a common cause, C. In statistics and econometrics we usually solve this...

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In search of identification — instrumental variables

In search of identification — instrumental variables We need relevance and validity. How realistic is validity, anyway? We ideally want our instrument to behave just like randomization in an experiment. But in the real world, how likely is that to actually happen? Or, if it’s an IV that requires control variables to be valid, how confident can we be that the controls really do everything we need them to? In the long-ago times, researchers were happy to...

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