英文文献：The Role of Fixed Cost and Non-Discretionary Variables in Fisheries: A Theoretical and Empirical Investigation-渔业中固定成本和非任意变量的作用:理论和实证研究
英文文献作者：Stephanie McWhinnie,Kofi Otumawu-Apreku
英文文献摘要：
We investigate the effects of incorporating a fixed input on equilibrium profits and biomass. We first set up a theoretical model with an input that is fixed in the short-run (vessel size) but that can be used with a variable input at suboptimal capacity. We use this model to get predictions for the impact on profits of exogenous changes in biomass, output price and vessel size. These give us interesting theoretical insights into why it is important to incorporate fixed inputs into profit analysis. We subsequently conduct an empirical investigation to gain an understanding of the effects of these non-discretionary factors on profit efficiency. In particular, we apply a truncated regression with bootstrap methodology to data on individual firm profit efficiency from the South Australian Rock Lobster Fishery. We find empirical support for our predictions that increased biomass and smaller vessel length are associated with higher profits. An additional empirical result is that individual quota management is positively associated with profit efficiency.

我们研究了纳入固定投入对均衡利润和生物量的影响。我们首先建立了一个理论模型，其输入在短期内是固定的(船只大小)，但可以在次优容量下使用可变输入。我们使用这个模型来预测生物量、产量价格和船只大小的外生变化对利润的影响。这些给了我们有趣的理论见解，为什么把固定投入纳入利润分析是重要的。随后，我们进行了实证研究，以了解这些非自由裁量因素对利润效率的影响。具体地说，我们对南澳大利亚岩龙虾渔业的单个企业利润效率数据应用了一种使用自举法的截尾回归。我们发现经验支持我们的预测，增加生物量和更小的船舶长度与更高的利润。另一个实证结果是，个人配额管理与利润效率正相关。