During the late 1980s, Norwegian salmon farmers had a market share of over 50% for farmed salmon in the USA. In 1991 a countervailing duty and an anti-dumping duty were imposed on Norwegian exports of farmed salmon to the US which basically closed the market for Norwegian salmon. The primary aim...

Relationships between prices of goods have held interest within economics in at least two areas - market integration and product aggregation. There is a close relationship between market integration and aggregation, although this has not received much attention in the more recent literature....