Identifying vertically differentiated products

Paulo Bastos, Joana Silva*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


Rauch (1999) introduced a product classification scheme that has since been widely used to empirically identify differentiated goods. Using firm-level data on export unit values, we provide direct evidence that this classification is well suited for capturing quality differentiation.
Original languageEnglish
Pages (from-to)32-34
Number of pages3
JournalEconomics Letters
Issue number1
Publication statusPublished - Jan 2010
Externally publishedYes


  • Exporting
  • Rauch's (1999) classification
  • Vertical differentiation


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