2.More likely, we would need to approximate the Coasian solution with an externality tax on fireworks (to reflect the risks) or a subsidy (to reflect the benefits).
3.If the goods purchased by Party A need additional deep processing, such as pasting bar code, re-packaging, sorting, etc., and the process costs arise as a result of the tentative increase of work force, then Party B can apply to Party A for subsidy after the agreement of Party A.
