Assume there is a perfectly competitive market for tangerines. What will happen in the long run for the market to achieve both allocative and productive efficiency if the price for tangerines is lower than the marginal cost of producing tangerines?

Producers will either exit the market or produce less tangerines

Explanation:

If the marginal cost of producing tangerines is more than the price of producing them, it means that the supply of tangerines is quite high which is why the market reduced the price of tangerines.

The producers in the market will therefore act to reduce supply. They will do this by either reducing the number of producers so that the smaller number of producers will produce less or they will reduce production jointly in order to reduce supply. As this is a perfectly competitive market, the former scenario is more likely.

Since there is no option, here are several things that can be used to determine whether an id is invalid:
- Expiration date of the ID
- Is the state seal in the correct place?
- Uneven surface
- The surface will look like it's glued
- Unmatching photograph
- You could ask the birth date of the holder and see if it match the id
- the thickness of the id, see if it's laminated