Stream of consciousness rationale: This is the relevant information: This allowance is a negative allowance, and a common way of going around this allowance is to increase the draft allowance.
The question and answer pair are described below.
Q: Usually during removal of the pattern from the mold cavity, the pattern is rapped all around the faces, in order to facilitate easy removal. In this process, the final cavity is enlarged. To compensate for this, the pattern dimensions need to be reduced. There are no standard values for this allowance, as it is heavily dependent on the personnel. This allowance is a negative allowance, and a common way of going around this allowance is to increase the draft allowance. Shaking of the pattern causes an enlargement of the mould cavity and results in a bigger casting.

Answer this question based on the passage: shake allowance is a positive or negative allowance?
A: negative