Supply Curve

Quick question: For all of the following is the SR SUPPLY curve always upward sloping? - Perfect competiion - Monopoly - Oligopy - Monopolistic

yep I think so.

thats correct

Thanks, it makes sense in my head why, I just wanted to make sure I wasn’t missing anything.

Are guys sure?

Yes, SR SUPPLY curve is always upward sloping in all market conditions.

In in conditions of perfect competition, the long run supply curve for external economies of scale is downward sloping. In diseconomies it is upward sloping and constant price it is flat !!!