Trade Volume and Unit Value UNSD practice

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Trade Volume and Unit Value UNSD practice

• Standard Unit Value
• Quantity estimation
• Quantity checking
• Unit Value Estimates
• Median as Best Estimate
• Lower Limit 25th prc 1.5 Hinge
• Hinge 75th prc 25th prc

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Trade Volume and Unit Value UNSD practice

• Basic Data
• 6-digit HS by partner country
• By Year, Flow and Unit
• Samples
• Years 2000 - 2004
• HS (about 5,000 codes)
• Imports and Exports
• Weight and Suppl. Unit
• About 50,000 samples

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Sample Characteristics

• Spread or Variability
• Asymmetry or Skewness

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Acceptable SUVs

• The data must come from more than two reporting
  countries/regions.
• There must be at least 30 observations in the
  sample
• The relative standard deviation must be less than
  or equal to 1.75, or
• The relative standard deviation is between 1.75
  and 3, provided that its multimodality index is
  less than 2
• The trade value corresponding to outliers must be
  less than 10 of the total trade value.

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Example Butter
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Example Salmon
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Thank you