December 4, 2023
After the ends of Epic v. Google day 13 and day 14, where it became painfully obvious, I am not a legal expert, I figured I should probably talk to one!
My biggest question was how the heck we’re going to get from a bunch of competing theories about what market definition should be to the actual questions in front of the jury. Does the judge pick market definition, like one did in Epic v. Apple? Do we have to go with the ones Epic named? Does the jury get to make it up?
Here’s Dan McCuaig, a partner at Cohen Milstein, who spent over a decade in the DOJ’s antitrust division. Not only did he answer my question, he also gave us an elegant summary of the how the process works.
Market definition is a question of fact rather than law. So, in a jury trial, the jury decides what the relevant market is. (The judge instructs the jury how to make that determination.) The jury then determines whether the challenged restraint/activity generated anticompetitive harm in that market. (If not, the defendant wins.) If so, the jury determines whether that same restraint/activity also generated procompetitive benefits in that same relevant market. (If not, the plaintiff wins.) If so, the jury then determines whether there was some less restrictive alternative that could have achieved the same (or virtually the same) procompetitive benefits with no (or substantially less) anticompetitive harm, and, ultimately, the jury balances the anticompetitive effects against the procompetitive benefits to determine, on balance, whether the challenged restraint/activity harmed or benefited the competitive process.
The jury need not find the same relevant market as the plaintiff has proposed in order for the plaintiff to win but, as a practical matter, the jury will always or almost always come out for the defendant if it rejects the plaintiff’s proposed relevant market.
Epic v. Apple was a bench trial, so the judge served as finder of fact — and thus made the call on relevant market.
If you take a look at the near-final jury instructions (pdf) for this case, you’ll see the flow sounds like what McCuaig is describing.