1. When added the added drawbacks of plant expansion are just balanced by the added benefits, production involves:

1. Constant Economies of Scale
2. Economies of Scale.
3. Dis-economies of scale.
4. None of the above.

2. When added the added drawbacks of plant expansion are greater than the added benefits, production involves:

1. Constant Economies of Scale
2. Economies of Scale.
3. Dis-economies of scale.
4. None of the above.

3. When added the added drawbacks of plant expansion are less than the added benefits, production involves:

1. Constant Economies of Scale
2. Economies of Scale.
3. Dis-economies of scale.
4. None of the above.