A mother’s time and attention is a non-substitutable good. A man’s military serv

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Human Behavior and Cognitive Science

A mother’s time and attention is a non-substitutable good.
A man’s military services is a non substitutable good.
All other goods are substitutable.

Source date (UTC): 2019-08-07 15:31:51 UTC

Original post: https://gab.com/curtd/posts/102576417077744530

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