<p><span class="h-card" translate="no"><a href="https://mastodon.social/@whitequark" class="u-url mention">@<span>whitequark</span></a></span> <span class="h-card" translate="no"><a href="https://mastodon.social/@hsivonen" class="u-url mention">@<span>hsivonen</span></a></span> <span class="h-card" translate="no"><a href="https://mastodon.social/@mhoye" class="u-url mention">@<span>mhoye</span></a></span> <br />Interest-based ads were already paying three times as much per impression as context-based ads a decade ago.</p><p>Beales, Howard and Eisenach, Jeffrey A., An Empirical Analysis of the Value of Information Sharing in the Market for Online Content (January 2014). Available at SSRN: <a href="https://ssrn.com/abstract=2421405" target="_blank" rel="nofollow noopener noreferrer" translate="no"><span class="invisible">https://</span><span class="">ssrn.com/abstract=2421405</span><span class="invisible"></span></a> or <a href="http://dx.doi.org/10.2139/ssrn.2421405" target="_blank" rel="nofollow noopener noreferrer" translate="no"><span class="invisible">http://</span><span class="ellipsis">dx.doi.org/10.2139/ssrn.242140</span><span class="invisible">5</span></a></p>