The heuristic is the tendency to make judgments about group membership based on physical appearances or the match between a person and one's stereotype of a group, rather than on available base rate information.

Representativeness Heuristic

Explanation:

Representativeness, together with availability and effect, is one of the major general purpose heuristics.

It's used by looking at the extent to which A resembles B when we judge the probability that an object or event A belongs to class B.

When we do this, we ignore knowledge about the general likelihood of B (its base rate) occurring (Kahneman & Tversky, 1972).

for many centuries there were important factors which the economies of the muslim empires developed increasingly. they applied economic procedures in production, investment, finance, taxation and property. they used to tax certain goods (for example: harvest), they charged interest on money lent, they signed contracts with merchants; they relied on a common currency, and they used checks as well as promissory notes. with the money collected by means of taxation, the government provided the needy with an income. in addition, trading networks covered huge distances, so far regions started to have contact and exchange goods. this trade network covered areas of asia, africa and europe.

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