Practice Problem: Finding Long Run Price and Firm quantity in Perfect Competition

Hi everyone in this practice problem I find the Long Run Price and the firm quantity in Perfect Competition.
0:00 Intro
0:40 Strategy
1:32 Finding ATC/MC and quantity and price
5:08 Checking that profit is equal to 0
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[@namangola6554]

shouldn't it be avc instead of atc ?

[@econhelp_official]

Hi Naman, we use atc in the long run, see here The Short-Run Shut-Down versus the Long-Run Exit/Entry Decision in Perfect Competition kzbin.info/www/bejne/oXPcaGaMbLmbjNk hope it helps! Also here: Long Run Equilibrium in Perfect Competition (with Adjustment) kzbin.info/www/bejne/iWqZfGyimJiJe7s