Which of the following is an index which estimates the strength of a brand in various geographical areas?

Question

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The Brand Development Index (BDI) is an index used to estimate the strength of a brand in various geographical areas. It calculates the sales performance of a product or brand within a specific market compared to its sales performance nationally. A high BDI indicates that a brand is selling well in a particular market, while a low BDI suggests that the brand is not popular in that market. The other options, PDI, CDI, BPI, and BSI, do exist but they do not measure the strength of a brand in geographical areas.

Which of the Following Is an Index Which Estimates the Strength