Answer:
Unlike tariffs, quotas do not generate government revenue unless importers are charged a licensing fee.
Tariffs always generate revenue for the government, whereas a quota's revenue is uncertain.
Step-by-step explanation:
Quotas are a condition for performing certain activity, that if you fall under the quota then only you can do that activity.
Thus, when the quotas are there then they do not provide any revenue to government, unless it is in the form of license requirement for which the user needs to pay.
Tariffs are the charges imposed by the government to do certain act.
Therefore, it clearly states that there will always be revenue on the point where there is these transactions that is Tariffs.