Lars P. Syll

On models and simplicity When it comes to modelling yours truly does see the point emphatically made time after time by e. g. Paul Krugman about simplicity — at least as long as it doesn’t impinge on our truth-seeking. ‘Simple’ macroeconomic models may of course be an informative heuristic tool for research. But if practitioners of modern macroeconomics do not investigate and make an effort of providing a justification for the credibility of the simplicity...

How to prove things .[embedded content] Great lecture series. Yours truly got Solow’s book when he was studying mathematics back in the 80s. Now in its 6th edition, it’s better than ever.

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Macroeconomics and the Friedman-Savage ‘as if’ logic An objection to the hypothesis just presented that is likely to be raised by many … is that it conflicts with the way human beings actually behave and choose. … Is it not patently unrealistic to suppose that individuals … base their decision on the size of the expected utility? While entirely natural and under- standable, this objection is not strictly relevant … The hypothesis asserts rather that, in...

In state of emergency .[embedded content] Koncerten i S:t Pauli kyrka tidigare i kväll var för yours truly en av årets musilkaliska höjdpunkter. Har ni möjlighet så missa inte koncerten (gratis) i Allhegonakyrkan i Lund i morgon kl. 19.00!

Yours truly har rykte om sig att vara en krävande tentator. Det stämmer nog. Men det finns alltid de som haft det ‘värre’ … [embedded content]

.[embedded content] En gigant i svensk musik har gått ur tiden. Sven-Bertil Taube (1934-2022). R.I.P.

The dangers of using unproved assumptions The unpopularity of the principle of organic unities shows very clearly how great is the danger of the assumption of unproved additive formulas. The fallacy, of which ignorance of organic unity is a particular instance, may perhaps be mathematically represented thus: suppose f(x) is the goodness of x and f(y) is the goodness of y. It is then assumed that the goodness of x and y together is f(x) + f(y) when it is...

Fyra år med väderspänning  FN:s generalsekreterare säger att världen står i brand och att det pågår en klimatkris. Men flera sverigedemo- krater i riksdagen håller inte med, visar en enkät som SVT Nyheter gjort. Av de 108 ledamöter som svarat håller nästan alla helt eller delvis med FN- chefen. Sex av åtta från SD som svarat uppger att de “inte alls håller med” eller “delvis inte håller med”. SD-ledaren Jimmie Åkesson är skeptisk till...

With loved one in one of our favourite spots in Berlin.