# Macroeconomics vs. Common Sense

**URL:** <https://boards.straightdope.com/t/macroeconomics-vs-common-sense/118435>\
**Category:** Factual Questions\
**Created:** [July 11, 2002, 3:46pm UTC](https://boards.straightdope.com/t/macroeconomics-vs-common-sense/118435 "2002-07-11T15:46:38Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Jinx](https://avatars.discourse-cdn.com/v4/letter/j/c6cbf5/32.png) [@Jinx](https://boards.straightdope.com/u/Jinx)\
**Post date:** [July 11, 2002, 3:46pm UTC](https://boards.straightdope.com/t/macroeconomics-vs-common-sense/118435/1 "2002-07-11T15:46:38Z")

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In a macroeconomics course I took, we studied two ficticious islands. One had an abundance of pineapples and some bananas - while the other had an abundance of bananas and fewer pineapples.

By some crazy formula, the professor dictated to us that, ergo, it was more economical for the pineapple-plentiful island to IMPORT pineapples!

a) Maybe this all makes sense to someone who can explain it…  
b) Do we such crazy logic applied in real life?  
-Jinx