is a fundamental personality dimension that describes the extent to which people are imaginative and questioning, or conforming and predictable.

The answer is openness to experience versus resistance to new experience.

Explanation:

Often referred to simply as the "openness" dimension, people who rank high on this trait are usually imaginative and creative. They also enjoy new experiences and are willing to learn from their mistakes. On the other side of this dimension, a person who ranks low will probably dislike changes and will struggle with abstract thought.

debating and finalizing the detail of the policy

productive most commonly means: achieving or producing a significant amount or result.

explanation:

productive can also mean:

these depend on how the word productive is used. most likely productive will mean   achieving or producing a significant amount or result.