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Why can't lower-main-sequence stars become giant stars
Balanced Reciprocity
A form of exchange where goods or services of roughly equal value are traded within a specified time frame, often among people with a social relationship.
Barter
is a method of exchange where goods or services are traded directly for other goods or services without the use of money.
Generalized Reciprocity
A form of exchange where goods or services are given with the expectation that the recipient will reciprocate in the future without a specified value or time frame.
Generalized Reciprocity
A type of exchange where goods or services are provided without an immediate or specified return, often found within close relationships or communities.
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