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Statistical Modelling of the Landing Price

The following table shows the preliminary results of the econometric analysis of factors influencing the landed price of Canadian snow crab, lobster, shrimp and Atlantic cod. The data are expressed in logarithmic form; the coefficients can thus be interpreted as the expected variation in price as a percentage following a 1% change in the value of the explanatory variable, all things being otherwise equal. The relative size of the coefficients for each species can be interpreted as a measure of the price elasticity of supply and demand for that factor and species.

Table 4: Results of the System of Equations, 1990-2011 (Seemingly Unrelated Regressions)
  Coefficient Standard Deviation Level of Significance
Price for snow crab      
North American landings -0.66 0.20 1%
US$/CAD$ -0.26 0.39 N.S.
YEN¥/CAD$ -1.37 0.33 1%
United States GDP 0.53 0.27 10%
Constant 11.05 6.78 N.S.
Observations (annual) 22
Adjusted R2 68.4%
Price for lobster      
North American landings -1.24 0.18 1%
US$/CAD$ -0.83 0.13 1%
United States GDP 2.08 0.15 1%
Constant -8.96 2.03 1%
Observations (annual) 22
Adjusted R2 92.1%
Price for shrimp      
Canadian and Greenlandic landings -0.78 0.11 1%
US$/CAD$ -1.20 0.22 1%
EUR€/CAD$ 0.34 0.29 N.S.
Denmark, Russia, and UK GDP 0.29 0.07 1%
Constant 11.91 1.50 1%
Observations (annual) 22
Adjusted R2 73.1%
Price for cod      
North American landings -0.10 0.05 5%
US$/CAD$ -0.82 0.17 1%
EUR€/CAD$ -0.75 0.38 5%
United States GDP 0.89 0.24 1%
Constant -12.92 4.70 1%
Observations (annual) 22
Adjusted R2 81.1%

N.S. = not significant

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