Additional Note: Desktop/Laptop ad spending historical data up to 2015 is derived from Interactive Advertising Bureau (IAB)/PricewaterhouseCoopers (PwC) data. Financial services includes commercial banks, credit agencies, personal credit institutions, consumer finance companies, loan companies, business credit institutions and credit card agencies; also includes companies engaged in the underwriting, purchase, sale or brokerage of securities and other financial contracts.
Methodology: Estimates are based on the analysis of various elements related to the ad spending market, including macro-level economic conditions; historical trends of the advertising market; historical trends of each medium in relation to other media; reported revenues from major ad publishers; estimates from other research firms; data from benchmark sources; consumer media consumption trends; consumer device usage trends; and eMarketer interviews with executives at ad agencies, brands, media publishers and other industry leaders.