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Can someone tell me why using tradition to solve the distribution aspect of the economic problem (like reciprocity) faces limitations when society reaches a certain size and hence needs to be supplemented with other solutions.

How does tradition work to solve the 'economic problem?' The economic problem asserts that there is scarcity.

___is an economic system in which traditions, customs, and beliefs help shape the goods and services the economy produces, as well as the rules and manner of their distribution. 

a) Traditional economy.

b) Command economy.

c) Market economy.

d) Mixed economy.

e) None of the above,