Answer: Positive sanction
Step-by-step explanation:
Positive sanction in term of sociology is defined as reward, applause or positive comments that is given by the social community of any person for good deeds and obedient behavior. It is done for encouraging members of social group and spreading conformity.
According to the question, Joyce is getting positive sanction because she settled a business contract successfully for the company and as a positive reward she received an increment in pay. This will encourage in future work.