The Norwegian Winter Herring Fishery: A Story of Technological Progress and Stock Collapse
研究了1970年代东北大西洋鲱鱼资源近乎灭绝的原因,发现动力滑车是主要因素,并通过模拟模型说明技术进步导致渔船作业范围扩大,从而影响了资源存量。
In the 1970s, herring stocks in the Northeast Atlantic were nearly fished to extinction. This collapse is usually attributed to technological advances. We investigate the empirical impact of technological shocks on herring stocks. We show evidence that the power block was the principal factor in the demise of the stock. We also look at the sensitivity of catch to stock size and technological shocks. We measure a significant stock effect in the 1950s, contrary to what we expect. A simulation model indicates that this could have been caused by an increasing range of the fishing fleet due to ongoing technological progress. <i></i>