American websites would lose $33 Billion over 5 years if Congress mandated EU-style Opt-In consent for interest-based advertising.
“Our analysis suggests that after the Privacy Directive was passed, advertising effectiveness decreased on average by around 65 percent in Europe relative to the rest of the world”
The MIT-Toronto Study compared the purchase intentions of 3.3 million individuals across 5 EU and 5 non-EU countries over the 8 years after European nations began implementing opt-in requirements to follow the EU Privacy Directive. The comprehensive study reduced extraneous factors revealing the advertising effects of the EU opt-in Privacy Directive.
Building off the work in the MIT-Toronto study, we forecast the effect such an EU-style opt-in legislation on American websites. Our forecast identified an $33 billion loss to American websites over five years.
This Graph shows the revenue losses would have serious consequences for websites and consumers, too:
Our numbers are based upon taking a forecast of US online interest-based ad revenue, then reducing that by the decline in advertising effectiveness experienced in the EU.
1. The loss of advertising revenue found in the EU after Opt-In was mandated there, by Goldfarb & Tucker, Privacy Regulation and Online Advertising, Univ. Toronto & MIT (Aug. 5, 2010)
2. Interest-based ad revenue starts at 80% of 2010 total online ad revenue, IAB, $6.4 Billion in Q3 2010 Sets New Record for Internet Advertising Revenues (Dec. 2010)
3. Growth rates were based on research by d Nicole Perrin, 11 Trends for 2011, eMarketer (Dec. 2010)