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1. Gdp Deflator

   Linked via "Fisher index"

   Calculation Methodology
   The GDP Deflator employs a chained or Fisher index approach in modern statistical practices, although early methodologies relied on the Laspeyres or Paasche formulas sequentially. The major advantage of the modern chain-weighted approach is its ability to address substitution bias—the tendency for consumers and producers to shift consumption patterns toward relatively cheaper goods over time.
   Weighting Structure