|05/20/2013 - 05/27/2013||New York City NY|
|05/23/2013||New York City NY|
|05/27/2013 - 05/28/2013||New York NY|
|06/02/2013 - 06/04/2013||San Francisco CA|
Companies advertise for many reasons. To create or reinforce a favorable impression of their brand, for instance. But mainly they advertise to sell products. Associating advertising with sales is problematic, however. How does the advertiser really know whether an ad influenced a purchase? And can new ad vehicles like tablets be more effective?