Intelligence is often left out of models for many historical institutional outcomes partly because academics see it as a info hazard. This should bias any regression analysis due to omitted variable bias. For example a institutional quality is correlated with group intelligence then the estimator for the impact of institutional quality is biased by the correlation factor times the impact of intelligence. Therefore there’s a price for avoiding that info hazard.
Measurement bias is a problem. It can be imperfectly corrected for with wordless it tests. Differences between countries in average IQ remain under these tests, see Jones.
For individual leader quality differences in group intelligence shouldn’t really matter. Yes some leaders are stupid.
The relationship between the mean score on individual iq tests of a country and the collective intelligence (have 4 random people take an IQ test together) is a different question. idk the research on it.
You ask a bunch of questions so I’ll try and break them apart and take them in order.
There are scholars who believe that the average intelligence of a nation in packs outcomes such as GDP growth. See the work of Garrett Jones. https://scholar.google.com/citations?user=xXXJZ-MAAAAJ&hl=en
Intelligence is often left out of models for many historical institutional outcomes partly because academics see it as a info hazard. This should bias any regression analysis due to omitted variable bias. For example a institutional quality is correlated with group intelligence then the estimator for the impact of institutional quality is biased by the correlation factor times the impact of intelligence. Therefore there’s a price for avoiding that info hazard.
Measurement bias is a problem. It can be imperfectly corrected for with wordless it tests. Differences between countries in average IQ remain under these tests, see Jones.
For individual leader quality differences in group intelligence shouldn’t really matter. Yes some leaders are stupid.
The relationship between the mean score on individual iq tests of a country and the collective intelligence (have 4 random people take an IQ test together) is a different question. idk the research on it.