Which statement(s) is/are true about the payments, costs, benefits, and other characteristics of deposit-refund systems when compared with other policies?

Group of answer choices

Usually the refund is higher than the deposit.

They are always cheaper to implement than a tax because no monitoring is required.

They are more effective than a tax.

It is an example of a 'type-revealing' policy.

They are more cost-effective than information-based policies.

Please give explanation