Stephen Kaufer - TripAdvisor, Inc.
Management
Sure. So, the second part of the question, what performance channels are we using? We pretty much use them all. I think we're very strong in almost every global market in any sort of performance-marketing channels. If you know of one that you don't see us in, let me know, it's an oversight, not a strategic decision. Obviously, the big ones are search engines and social networks and if that platform has scale then we're using it. In terms of how we decide who's providing the instant booking; again, I caution you on that may be – that is a very important and valid question that our partners want to know, because they're eager to gain share in our instant booking marketplace, but the commission deltas or that selection isn't critical in our overall monetization. So, when we look at growing now throughout 2017 and beyond, you look at the overall picture of how we translate a top-of-funnel hotel shopper into that clicker, whether they click on instant book or meta. And so, it's more significant for us, for instance, to figure out how to drive higher-qualified leads by providing better content about hotels, better photos, et cetera, downstream to our OTA partners or the chain partners than see if we can eke out a few more basis points of commission via an auction. So, IB – to more specifically answer the question about the instant book auction, primary factor is which of our partners offers us the best price to book the room, because we know our travelers care most about the price, and so it's usually, who has the lowest price is going to win the auction. When you have a supplier brand plus an OTA brand offering the same price for a particular property, we have a calculation that attempts to understand the likely conversion rate between the branded player and the OTA times the commission rate, and that gets us an effective CPC. It's more nuanced than that, but for the sake of this call, that's the general game plan.