A few contentions against Pigovian charges say that the expense doesn't represent every one of the exchanges and guidelines engaged with an externality. At the end of the day, the duty just considers how much externality produced. [50] Another contention against the expense is that it doesn't think about private property. Under the Pigovian framework, one firm, for instance, can be burdened more than another firm, despite the fact that the other firm is really delivering more noteworthy measures of the negative externality.[51]