Mobile Advertising in Developed Countries: $3.57 per person up to $36.35

Mobile advertisers in the United Kingdom spend more trying to reach each mobile internet user in the country than anywhere else in the world, according to new estimates by eMarketer. 

Advertisers spent $36.35 per mobile internet user in the United Kingdom in 2012. The United States has the third-highest spending per mobile internet user in the world; advertisers in the country spent an average of $31.50 to reach each one.

 Japan, which is the world's second-largest mobile advertising market in terms of absolute dollars, saw advertisers spend $26.23 per mobile internet user.