<Dd> N N P = G N P − D e p r e c i a t i o n (\ displaystyle NNP = GNP - Depreciation) </Dd> <Dl> <Dd> N D P = G D P − D e p r e c i a t i o n (\ displaystyle NDP = GDP - Depreciation) </Dd> </Dl> <Dd> N D P = G D P − D e p r e c i a t i o n (\ displaystyle NDP = GDP - Depreciation) </Dd> <P> Although the net national product is a key identity in national accounting, its use in economics research is generally superseded by the use of the gross domestic or national product as a measure of national income, a preference which has been historically a contentious topic (see e.g. Boulding (1948) and Burk (1948)). Nonetheless, the net national product has been the subject of research on its role as a dynamic welfare indicator as well as a means of reconciling forward and backward views on capital wherein NNP (t) corresponds to the interest on accumulated capital . Furthermore, the net national product has featured prominently as a measure in environmental economics such as within models accounting for the depletion of natural and environmental resources or as an indicator of sustainability . </P>

Net national product is calculated as gross national product quizlet