STORY: Joseph Brooks, 'You Light Up My Life' Songwriter, Commits Suicide Awaiting Trial. Brooks and Cachay were introduced by a friend in 2010 but were constantly on-again, off-again. Cachay didn't like that they would drink too much together, her friends testified.
Brand Development Index. Definition: Brand Development Index. The Brand Development Index is an index that relates the percent of a brandâs sales in a market to the percent of total market. The brand development index measures the relative sales strength of a brand within a specific market.
Understanding BDI and CDI Formulas. BDI and CDI are indices comparing the relative strength of a market to overall sales. The Brand Development Index (BDI) is an index compared to overall brand sales. The Category Development Index (CDI) is an index compared to overall category sales. Like any index, a score of 100 is average.