An argument against additionality is based on the fact that developing countries are not subject to emission caps in the Kyoto Protocol (Müller, 2009, pp. "iv", 9-10). On these basis, "business-as-usual" (BAU) emissions (i.e., emissions that would occur without any efforts to reduce them) in developing countries should be allowed. By setting a BAU baseline, this can be interpreted as being a target for developing countries. Thus, it is, in effect, a restriction on their right to emit without a cap. This can be used as an argument against having additionality, in the sense that non-additional (i.e., emission reductions that would have taken place under BAU) emission reductions should be credited.