In a May filing to Australia's antitrust regulator, Google said it doesn't control enough of the digital ad market to overcharge customers or block competitors
A document sent by the search giant to Australian regulators argues that the company doesn't control enough of the digital ad industry … Tweets: @nytimesbusiness and @media_evan Tweets: @nytimesbusiness : A document sent to Australian regulators by Google's advisers may provide clues to how the Silicon Valley titan intends to beat back a legal challenge from the Justice Department https://www.nytimes.com/... Evan DeSimone / @media_evan : If Google can “prove” that it's not an anti-competitive force in the ad market all that really tells us is that we need new standards for what anti-competitive behavior looks like. https://www.nytimes.com/...
Context & Ripple Effects
This filing is an early artifact of the strategy Google would later run at scale: as US antitrust investigators zeroed in on how Google bundles its ad tools, the company began building the counter-argument that its share of the ad market is too small to confer pricing or foreclosure power. The Australian submission is where that argument first appears in a regulatory record.
It matters because the same market-definition fight now anchors the American case. When the DOJ sued Google and called for breaking up its ad tech business, Google's response was precisely this move — asking a judge to dismiss the suit on grounds that the government defined the market too narrowly — while scholars argued the real problem is that Google both runs the marketplace and trades in it.
First-order effects
- Australia's competition regulator receives Google's dominance rebuttal on the record, giving any future review of the ad stack a documented position to test rather than infer.
- The filing hands Google's advisers a template: the 'we lack sufficient control' argument surfaced here in mid-2020 reappears almost verbatim in Google's later bid to have the DOJ case dismissed.
Second-order effects
- Publishers and antitrust scholars respond by reframing the dispute away from share numbers — arguing the marketplace itself should be regulated because Google sits on both sides of every trade — which pressures regulators in multiple jurisdictions to define the market structurally instead.
- The DOJ's breakup demand forces Google to litigate market boundaries as its primary defense, making every rival included or excluded from the definition a live legal battleground.
Third-order effects
- With two federal judges having since declared Google a monopoly within a year, the pattern points toward courts treating narrow market definitions as insufficient protection against vertically integrated platforms — a shift that would reshape how digital ad markets are policed globally.
- If regulators converge on structural remedies for firms that operate the exchanges they compete in, ad tech could split into regulated infrastructure and competitive trading layers, with Google's dual role as the test case.
The trend: Antitrust scrutiny of Google's ad stack is converging across jurisdictions on one question — whether market share alone can capture the power of a firm that owns the marketplace it trades in.