Lars P. Syll

Georgy V. Sviridov — ‘Holy God’  [embedded content] div{float:left;margin-right:10px;} div.wpmrec2x div.u > div:nth-child(3n){margin-right:0px;} ]]> Advertisements

The point of the discussion, of course, has to do with where Koopmans thinks we should look for “autonomous behaviour relations”. He appeals to experience but in a somewhat oblique manner. He refers to the Harvard barometer “to show that relationships between economic variables … not traced to underlying behaviour equations are unreliable as instruments for prediction” … His argument would have been more effectively put had he been able to give instances of relationships that...

Markets as beauty contests  [embedded content] div{float:left;margin-right:10px;} div.wpmrec2x div.u > div:nth-child(3n){margin-right:0px;} ]]> Advertisements

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Solving the St. Petersburg Paradox [embedded content] Solving the St Petersburg paradox in the way Peters suggests, involves arguments about ergodicity and the all-important difference between time averages and ensemble averages. These are difficult concepts that many students of economics have problems with understanding. So let me just try to explain the meaning of these concepts by means of a couple of simple examples. Let’s say you’re offered a gamble...

The right kind of realism Some commentators on this blog seem to be of the opinion that since yours truly is critical of mainstream economics and ask for more relevance and realism I’m bound to be a ‘naive’ realist or empiricist. Nothing could be further from the truth! In a time when scientific relativism is expanding, it is important to keep up the claim for not reducing science to a pure discursive level. We have to maintain the Enlightenment tradition...

Going for the right kind of certainty​ in economics In science we standardly use a logically non-valid inference — the fallacy of affirming the consequent — of the following form: (1) p => q (2) q ————- p or, in instantiated form (1) ∀x (Gx => Px) (2) Pa ———— Ga Although logically invalid, it is nonetheless a kind of inference — abduction — that may be factually strongly warranted and truth-producing. Following the general pattern ‘Evidence  =>...

Pretending that the distribution of income and wealth that results from a long set of policy decisions is somehow the natural workings of the market is not a serious position. It might be politically convenient for conservatives who want to lock inequality in place. It is a more politically compelling position to argue that we should not interfere with market outcomes than to argue for a system that is deliberately structured to make some people very rich while leaving others...

On the limits of Adam Smith’s invisible hand [embedded content] It might look trivial at first sight, but what Harold Hotelling showed in his classic paper Stability in Competition (1929) was that there are cases when Adam Smith’s invisible hand doesn’t actually produce a social optimum. With the advent of neoclassical economics at the end of the 19th century, a large amount of intellectual energy was invested in trying to formalize the stringent conditions...

Adam Smith’s visible hand How selfish soever man may be supposed, there are evidently some principles in his nature, which interest him in the fortune of others, and render their happiness necessary to him, though he derives nothing from it except the pleasure of seeing it. Of this kind is pity or compassion, the emotion which we feel for the misery of others, when we either see it, or are made to conceive it in a very lively manner. That we often derive...