News for hackers. Stuff that matters.
Re:The Welfare Effects of Dynamic Pricing: Evidence from Air... by IG_Semmelweiss on Friday March 25, 2022 @10:36AM (#30802658)
I agree with the paper's conclusions. Dynamic pricing is a good thing. But lets take a counterexample:

Amazon tried this years ago. They changed pricing on the same sku based on who was shopping for it.

The blowback was tremendous. Amazon had to actually back down.

My take is that consumers understand and are willing to put up with dynamic pricing for airplane seats because the algorithm is presumably understood.

I'm willing to accept that the person sitting next to me on an airplane may have paid 1/3 than the price I paid on my ticket. Maybe the person next to me booked earlier, or booked when the airline had a promo going. Sounds reasonable.

But what happens when airlines quietly change algos...to raise prices because of my browsing habits, IP, or CC used?

I bet you this is coming

Re:The Welfare Effects of Dynamic Pricing: Evidence from Air... by mfringel on Friday March 25, 2022 @11:28AM (#30803327)
A key differentiator is that airline seats are a perishable good.

That is, an empty seat has value until the plane takes off, at which point the value goes to zero. On the flip side, a traveler has an opportunity to be in that seat until the plane takes off, at which point its value is zero. People tend to understand that those values continuously vary with time, and so the price will vary with time.

To contrast, books (in specific) and consumer durables (in general) are not perishable goods. The notable exceptions tend to be time-based; try getting chocolates in the heart-shaped box right before Valentine's Day in the US... and then the day after. Since the value of the book doesn't continuously vary with time over the short-run, people don't expect that the price will vary.

Re:The Welfare Effects of Dynamic Pricing: Evidence from Air... by ccalloway on Friday March 25, 2022 @12:36PM (#30804239)
Tickets for the theater and for concerts are also generally sold for considerably below the price that the market will bear, with enormous effort put into ineffectively preventing resale, despite the tickets being 'perishable' in your sense.
Re:The Welfare Effects of Dynamic Pricing: Evidence from Air... by colinmhayes on Friday March 25, 2022 @12:45PM (#30804381)
Tickets generally are dynamically priced. If a ticket has high demand it will instantly sell out and be put up for auction on resale sites.
Re:The Welfare Effects of Dynamic Pricing: Evidence from Air... by ccalloway on Friday March 25, 2022 @12:49PM (#30804432)
By this definition everything that can be resold is dynamically priced.

The GP was trying to explain why airline tickets, but not consumer goods, are dynamically priced when sold by the original vendors.

Re:The Welfare Effects of Dynamic Pricing: Evidence from Air... by colinmhayes on Friday March 25, 2022 @01:00PM (#30804586)
Most goods that can be dynamically priced are dynamically priced. The thing is that most goods are not supply constrained. When there is competition and an unlimited supply people will just pretend they have a lower willingness to pay so dynamic pricing doesn't really work.
Re:The Welfare Effects of Dynamic Pricing: Evidence from Air... by ccalloway on Friday March 25, 2022 @01:15PM (#30804771)
This does explain why Playstations are not dynamically priced, but it fails to explain why concert tickets are not dynamically priced.
Re:The Welfare Effects of Dynamic Pricing: Evidence from Air... by kingbirdy on Friday March 25, 2022 @02:21PM (#30805488)
Concert tickets _are_ dynamically priced, at least for some events. See Ticketmaster's "Official Platinum"[0] which is a dynamic pricing system for the best seats, I imagine other companies have something similar.

[0]: https://help.ticketmaster.com/s/article/What-are-Official-Pl...

Re:The Welfare Effects of Dynamic Pricing: Evidence from Air... by ghaff on Friday March 25, 2022 @02:00PM (#30805298)
As I recall from my economics, one of the usual theories is that bands/venues/sports events/service stations in remote locations/etc. don't in the main want to gain the reputation for being the a*holes who will rip you off given the slightest opportunity.

It's at least possibly bad for long-tern business. And in the case of small businesses, the owners may just not want to be that person.

For events, "list prices" are often gotten around by (in addition to ticket brokers being a thing) by various types of VIP seating, extras, and so forth which raise prices to closer to market levels while leaving normal ticket list prices--assuming you can get one.

Re:The Welfare Effects of Dynamic Pricing: Evidence from Air... by verall on Friday March 25, 2022 @04:10PM (#30806565)
Other comments are also explaining; but in the modern day concert tickets _are_ dynamically priced, with stubhub (owned by) and ticketmaster set up to be the "bad guy".

Popular concerts sell out very fast and are immediately being sold on stubhub. Not all of these tickets sold on stubhub are actual resales by consumers or scalpers, but are typically mass purchases negotiated by ticketmaster ahead of time.

Superfans glued to artist social media will get special promo codes which unlock tickets that are not otherwise available. This makes sense because they are the most likely to spend the difference on merch.

Re:The Welfare Effects of Dynamic Pricing: Evidence from Air... by mdavis6890 on Friday March 25, 2022 @10:50AM (#30802851)
I think the difference in the Amazon example is that it’s about you as an individual, rather than general market circumstances.

I think most of us are okay paying a surge rate to Uber when it’s raining at the ballpark (market circumstances), but not just because you are on the way to the hospital (personal circumstances).

Re:The Welfare Effects of Dynamic Pricing: Evidence from Air... by eganp on Friday March 25, 2022 @03:36PM (#30806258)
Never thought of this distinction before! Thanks for making this distinction.

This seems to hold in other contexts. People tend to tolerate price discrimination at an aggregate level (e.g. senior/student discounts) but loathe individual-level price discrimination (e.g. college tuition). I wonder if it's the unfairness or uncertainty

Re:The Welfare Effects of Dynamic Pricing: Evidence from Air... by atyppo on Friday March 25, 2022 @11:53AM (#30803657)
This already happens on an extent on Delta's website. I've had it happen multiple times where I receive a higher upgrade offer price than others traveling with me on a separate reservation. Other times where even the price of the ticket is different, despite vehement denial from someone in Ed Bastian's office. Hence I frequently use incognito and change my VPN's location to search and get cheapest mileage-based offers since this isn't searchable on Google Flights. Quite scummy to think they're offering higher prices to their more loyal customers (I travel about 50k miles/yr on Delta). Makes me want to become an airline free agent since I'm in NYC and can get direct flights pretty much anywhere.
Re:The Welfare Effects of Dynamic Pricing: Evidence from Air... by JoshTriplett on Friday March 25, 2022 @03:42PM (#30806321)
> My take is that consumers understand and are willing to put up with dynamic pricing for airplane seats because the algorithm is presumably understood.

I think consumers put up with dynamic pricing for airline seats because they don't have another option available, and because it's a long-standing practice that didn't change in an era where that change would have generated blowback.

> But what happens when airlines quietly change algos...to raise prices because of my browsing habits, IP, or CC used?

This has already happened: https://business.time.com/2012/06/26/orbitz-shows-higher-pri...

Orbitz showed higher prices to Mac users because they figured (probably correctly) that Mac use was correlated with willingness to pay more. They stopped that practice when it became widely known, but it wouldn't surprise me at all if others do the same and don't get caught.

Re:The Welfare Effects of Dynamic Pricing: Evidence from Air... by offbynull on Friday March 25, 2022 @10:45AM (#30802788)
> to raise prices because of my browsing habits, IP, or CC used?

How would this work when most people get their flights through aggregators? I search for flights on Google Flights. I imagine Google Flights just hits a database somewhere to get times, prices, number of stops, etc.. rather than share my information with every airline.

Re:The Welfare Effects of Dynamic Pricing: Evidence from Air... by saiya-jin on Friday March 25, 2022 @10:55AM (#30802927)
I never, ever, super-duper seriously ever again buy airline tickets from anybody but airlines directly. Use to be cheap like that, thinking how clever I was saving few bucks here and there just by using other seller for the same plane. I use search engine to look generally what's the pricing/timing situation but that's it.

Then you hit issues, delayed flights etc. and every single helpdesk' first question is: did you book with us or through reseller? If by reseller, please contact them, goodbye and have a nice day. If by us, here is completely brand new ticket for free at best possible available time.

Life if too short and I am too poor to deal with such crap when traveling (which is in my case only for vacations, no point ruining them by trying to save few bucks). And quite often direct selling is same price as the other sources.

Re:The Welfare Effects of Dynamic Pricing: Evidence from Air... by Ekaros on Friday March 25, 2022 @11:20AM (#30803222)
For vacations it might make sense to buy from travel agency at least in EU. Flight cancelled? Don't have to worry about getting refund on other things either. I had vacation booked when covid hit with all restrictions, flight+hotel(my choice) from agency, full refund without any questions asked.

So either go with agency, pay the premium for them to sort it out if possible. Or then directly to airline. The results might vary, but per location there might be perks with either.

Re:The Welfare Effects of Dynamic Pricing: Evidence from Air... by atyppo on Friday March 25, 2022 @11:55AM (#30803693)
Yes, this is generally true, but not always (although this is definitely an outlier). JFK-SCL was $1200 cash through the airline or $287 through a travel agent. Guess which I chose?
Re:The Welfare Effects of Dynamic Pricing: Evidence from Air... by injidup on Friday March 25, 2022 @11:47AM (#30803564)
I have just run into this with Bravofly. Bought two tickets with Singapore airlines. 4 legs were booked. 14 days before the flight I get an SMS saying Singapore Munich is cancelled.

I ring through to Bravo and ask them to reschedule a the flight as is required under EU law. No problem sir we are into it. I think nothing of it. 5 days pass. No email and my booking has not changed.

I ring again. Why is this taking so long. I was rudely informed to be patient as the "relevant department" ( note this term ) is processing it and it takes some time.

10 minutes later I get an email from bravo. All my flights are cancelled.no to information is provided about the reschedule.

I find their webchat app and get in touch.

"How can I help you sir?" Starts the conversation which quickly goes downhill. The man informs me that Bravo is not responsible for rescheduling the flight. My contract is with Singapore airlines. "Have a nice day sir"

No no no and no....I argue with him for over an hour. Eventually he agrees to escalate and then hangs up on me.

I try to contact Singapore airlines but they tell me to go back to Bravo. It's their ticket booking.

A day later I call back to Bravo and ask them the status. They just stonewall me. Everything is handled by the "relevant department" and I will get an "email as soon as possible" They refuse to divulge any information.

They start pressuring.me to cancel. They promise me a full refund. I say no I want a reschedule. "Ok sure but you will have to wait for the RELEVANT DEPARTMENT."

This is nine days before I fly. I've waited now 6 days for any actionable information from Bravo. Nothing comes. Eventually I give in..I book a new flight direct with Singapore airlines.

I contact the bravo chat again and ask them to cancel. "Ok sir but we can only refund you the part of the ticket that was cancelled". That is 1/4.

I explode..I post the chat log I'd recorded from yesterday showing that I'd been promised a full refund. "Yes sir ... Of course sir.but there will be a 35 euro handling fee"

No the fuck there won't be I responded and posted the recorded log where I'd explicitly the day before asked about handling fees and were promised there would be none.

I asked when I should expect the refund. "I've notified the RELEVANT DEPARTMENT and they will contact you as soon as possible"

At this point I realise their business strategy. They can offer cheaper flights because when everything goes well the customer gets the flight. If however the airline cancels one flight Bravo can then dick the customer around and attempt to find excuses not to pay up.

I somehow doubt I will get much of the 1000 euros out of them they owe me.

Re:The Welfare Effects of Dynamic Pricing: Evidence from Air... by saiya-jin on Friday March 25, 2022 @01:41PM (#30805090)
That's... a bit extreme even for my experience, but I guess 4 legs and bad luck can do this to you, max I've ever done was 3 (and they lost my big luggage for a week without any info about it but that's another topic).

But yes that's exactly why we buy directly. Compare it to our trip to Bolivia via Miami few years ago. Come to the airport, do you have US ESTA visa? Nope what is that? We dont' travel to US so don't know its policies, just want to fly to Bolivia. Yeah but you go via Miami, its not secured airport unlike most airports anywhere, you need full tourist US ESTA visa. OK we go to airlines helpdesk (British airways) by their recommendation, they do quick ESTA for us based on our passports.

All good, we fly to London, but then flight to Miami is a no-go at the gate, can't find our ESTA code. Some US personnel on the airport in Heathrow found out the person who made ESTA selected incorrect country in our application. 30 minutes to departure. Sorry no-go. Straight on the airport within 20 minutes we got free tickets for same flight next day and other remaining leg and did ESTA correctly ourselves.

I have few similar stories, but they all point to the same conclusion - its not worth the extra risk, especially if there are more legs and multiple airlines are involved. It all looks nice till first cancellation happens. The amount of frustration and stress can easily ruin any mental benefits of (usually quite costly due to 4 of us) vacations.

Re:The Welfare Effects of Dynamic Pricing: Evidence from Air... by notahacker on Friday March 25, 2022 @01:48PM (#30805163)
I can add a bit of clarity to that. When you book connecting flights direct with an airline, or with that airline's codeshare partner, or with an authorised reseller, you've got one ticket all the way through which the airline is obliged to fulfil by getting you to your end destination or pay expensive compensation. If they cancel part of the flight, they might have to get you to your end destination on a different route, possibly with a last minute ticket on a different airline (which is very expensive... for them)

When you book with Bravofly and equivalent, they book separate tickets for each leg with no promise of connection. That's how they get the cheapest possible fares. In the event of a cancellation of one of the flights the airline is obliged to offer you a rescheduled ticket between two destinations, but has no obligation to ensure the passenger gets from the start point to the end point of the original itinerary. So none of the alternative tickets SIA was obliged to offer Bravofly were any use to you. Bravofly don't have any obligation to reroute you either and even if they cared about goodwill I doubt their margins are big enough for them to volunteer alternative flights at their own expense.

Or put another way, I booked a cheap flight back to London via Zurich on their airBerlin's website. Couple in front of me booked the same route via Bravofly (as two separate tickets) for about £5 less. When airBerlin decided to cancel the flight to Zurich without telling some of their passengers until they arrived at the airport I got back to London around when I'd originally expected at airBerlin's expense on a better airline on a different route. The other couple got told they could have a flight to Zurich later that day if they still wanted it, but they'd miss the other flight back to London without compensation regardless. Or they could ring Bravofly and see if they'd help...

Re:The Welfare Effects of Dynamic Pricing: Evidence from Air... by injidup on Friday March 25, 2022 @03:34PM (#30806237)
I'm not sure this is the case as I actually have a valid SIA booking number and single SIA ticket number. I can verify this on the SIA android app.
Re:The Welfare Effects of Dynamic Pricing: Evidence from Air... by sokoloff on Friday March 25, 2022 @12:47PM (#30804400)
Long before the point you're at, I'd have let my credit card company know to charge back that transaction and the details why. (I do give companies one solid effort to correct things on their end.)
Re:The Welfare Effects of Dynamic Pricing: Evidence from Air... by injidup on Friday March 25, 2022 @03:36PM (#30806253)
I've submitted all that information today to the credit card company along with the chat logs.
Re:The Welfare Effects of Dynamic Pricing: Evidence from Air... by nathancahill on Friday March 25, 2022 @01:48PM (#30805168)
Absolutely. I search for flight legs on ITA Matrix and then book the specific itinerary by calling in with the flight code. Generally get the exact flights, schedule, class, seats etc. ExpertFlyer is worth it's weight in gold.
Re:The Welfare Effects of Dynamic Pricing: Evidence from Air... by shmatt on Friday March 25, 2022 @10:58AM (#30802960)
From my personal experience that sort of stuff doesn't happen anymore due to aggregators. Prices do change based on the moment you searched, but I've constantly been getting the same price across ITA Matrix / Google Flights / Airline Official Website / Priceline

No Incognito or VPN needed

What I do still see changing based on different metrics like IP are car rental prices and hotel prices

All US car rental companies give much cheaper prices to foreigners. I don't know the reasoning but its absurd, A rental car in Manhattan for Easter weekend will cost you $300/day on kayak.com and $70/day at the same exact branch on kayak.com.hk (this also works on the companies official websites when changing "country of residence")

Re:The Welfare Effects of Dynamic Pricing: Evidence from Air... by tomrod on Friday March 25, 2022 @12:02PM (#30803807)
> Dynamic pricing is a good thing

I'm not sure dynamic pricing is necessarily pareto improving (I think this might be what you mean by "is a good thing"? For folks that are learning this lingo, pareto improving -- at least one party better off and none worse off). I'd have to think through it a bit.

Re:The Welfare Effects of Dynamic Pricing: Evidence from Air... by colinmhayes on Friday March 25, 2022 @12:47PM (#30804402)
Plenty of good things are not pareto improvements. If someone is a little worse off but someone else is much better off that is a good thing.
Re:The Welfare Effects of Dynamic Pricing: Evidence from Air... by tomrod on Friday March 25, 2022 @01:34PM (#30805004)
I believe that depends on the ethical system you espouse. Egalitarianism, yes. Utilitarianism, not necessarily (so-called utility monster). And so on.
Re:The Welfare Effects of Dynamic Pricing: Evidence from Air... by hammock on Friday March 25, 2022 @01:30PM (#30804959)
It's definitely not. This is why the welfare effect is described in the abstract as having directionality
Re:The Welfare Effects of Dynamic Pricing: Evidence from Air... by pessimizer on Friday March 25, 2022 @12:35PM (#30804224)
> to raise prices because of my browsing habits, IP, or CC used?

Or higher prices because you have Prime, or pricing either intentionally or inadvertently based on race, sex, religion, or sexual orientation?