The Nielsen Company released insights into shopping preferences among African-American consumers (with a total buying power expected to reach $1.1 trillion by 2012).

The information comes via a new online publication, Consumer Insight, reports MarketingCharts.

Nielsen data on African-Americans' shopping activity:

• There are few differences among African-American and non-African-American households when it comes to shopping at grocery, mass merchandisers and warehouse club stores
• A much higher proportion of African-American consumers shop at convenience-oriented formats, such as drug, dollar and convenience/gas stores.

• Nearly half (46 percent) of African-American households shop beauty supply stores - almost three times the rate for non-African-American households.
• Automotive supply stores and electronic stores follow beauty stores as the most popular alternative shopping channels for African-American consumers.
• African-American shoppers make more shopping trips each year compared with the average household (175 versus 165) but spend less per trip ($39 versus $44).

(MarketingCharts has more, on African-Americans' television viewing, here.)