Despite the high cost of acquiring new customers (vs. retaining ones they already have), only one-half (49.6%) of surveyed marketing executives say they know who their most loyal customers are and how best to reach out to them, according to new study by Acxiom and Loyalty 360.

Among surveyed marketing executives:

    * Nearly 20% cannot identify their loyal customers (they strongly disagree (8%) or disagree (11%) they know who their loyal customers are and how to engage them).
    * Nearly one-third (32%) report their customer knowledge is somewhere in the middle (they're neutral about whether they know who their customers are and how best to reach them).