Cartels are difficult to operate for which of the following reasons? a. they work only if members keep to their agreed output. b. they are illegal worldwide. c. firms in a cartel are likely to lose money. d. the products are perfectly competitive.

Cartels are difficult to operate becacuse : A. they work only if members keep to their agreed output
Since, there is no specifically formal structure in their business, it is really hard to maintain control upon the operation. Not only that, the business usually operate in the dark due to its illegal anture