Learner's definition of SHORT RUN
the short run
a short period of time at the beginning of something
— usually used in the phrase in the short run
compare long run
It won't make any difference in the short run. [=when a small amount of time has passed]
These changes may improve profits in the short run [=in the short term, in the near future], but they are going to cost us money in the long run.
always used before a noun