Estimating Pollution Abatement Costs of Salmon Aquaculture: A Joint Production Approach
采用联合生产函数方法，同时建模鲑鱼养殖中的好产出（鲑鱼）和坏产出（污染），利用挪威鲑鱼养殖业数据估算污染减排成本，平均约占产量的3.5%和收入的6.5%。
Salmon aquaculture generates good output (i.e., salmon) and bad output (e.g., pollution). A joint production function approach is applied to model both outputs simultaneously. Two environmental production technologies are specified, namely, regulated and unregulated technologies. Two production functions with different mapping rules are applied. Pollution abatement costs are estimated based on a series of data from the Norwegian salmon aquaculture industry. Results indicate that pollution abatement costs vary among observations and models. On average, pollution abatement cost is estimated to be about 3.5% in terms of total farmed salmon production, and 6.5% in terms of total revenue of farmed salmon. <i></i>