Norway is the world's second largest exporter of fish and fish products by value, with key markets in Europe, Russia, Japan, China, and the United States. Haddock is one of the main capture species. However, the price of haddock fluctuates widely. For example, it was about \(60 \%\) lower in March 2016 than its peak in January 2015, and exports of fresh haddock products declined by 7\% between 2015 and 2016. If some Norwegian fishermen stay in port when prices fall dramatically while others continue to harvest haddock, what might explain their differing behavior?