It would do well to lose its mathematical pretensions and adopt the statistical methods of its humbler relative. But, of course, humans change inexorably. Some changes are unpredictable, even in deterministic principle. Other changes are well documented. An example of the latter class of changes in the learning curve.
Humans learn and the more they learn the more they alter their behaviour.
So, to obtain any meaningful data, one has to observe behaviour in time, to obtain a sequence of reactions and actions. To isolate, observe and manipulate environmental variables and study human interactions. No snapshot can approximate a video sequence where humans are concerned. He is an economic and political columnist in many periodicals in a few countries and a published and awarded author of short fiction and reference books in Hebrew, English and Macedonian in Israel, Macedonia and the Czech Republic. He is serving currently as the Economic Advisor to the Government of Macedonia.