Since 1970, the poverty rate has largely fluctuated between:

Which of the following statements is true?

A) Optimization in levels is often slower to implement than optimization in differences, as it considers only the aspects in which alternatives differ. B) Optimization in differences is often faster than optimization in levels, as it considers all aspects of the feasible alternatives. C) Optimization in levels is based on ordinal analysis. D) Optimization in differences is based on marginal analysis.

For a perfectly competitive firm the break-even price is equal to the shutdown price in the short run

a. True b. False Indicate whether the statement is true or false