Showing posts with label game theory. Show all posts
Showing posts with label game theory. Show all posts

Tuesday, March 3, 2015

Netanyahu's Congressional address on the Iran nuclear deal

I don't want to get into the weeds about how poorly argued and substantiated his speech was (the guests in the interview above do that, but just to give you a sense, Bibi said that Iran is competing with ISIS for global domination). But I don't fault him for trying. Like in game theory, it's all about the payoffs and priorities of each player. And with the same set of facts, rational and smart people can come to wildly different conclusions. From their point of view, they're totally right based on their goals.

Re: Israel-Iran, obviously the priority of a conservative Zionist regime is the preservation of the Jewish State at all costs, and keeping pressure on their enemies in perpetuity. No other cost consideration comes close (some IDF soldiers killed - better than getting nuked, angering the Arab world - they can live with that, upsetting the US and UN - they don't really need us anymore, and there are still enough diehard pro-Israel folks here to almost guarantee indefinite US support). So they will do anything to prevent a nuclear Iran or anyone making concessions to Iran or other enemies (which includes breaking protocol to address Congress).

US presidents and Israeli PMs disagree on stuff, and it can cost the PM his job if the Israeli public perceives that the PM is endangering the US-Israeli special relationship. That contributed to Bibi's ouster the first time around, as he butted heads with Clinton one too many times. But currently, I think the Israeli public is so fearful of a nuclear Iran that US relations are a distant concern (or they take it for granted, hence the persistence on expanding West Bank settlements). Even liberal press in Israel support Bibi's view (but not necessarily his methods) that the US should not give an inch to Iran.

Even if Iran's leadership is more moderate now, and with the proposed controls it's highly unlikely that they can develop and test weapons covertly, Israel can't even tolerate a 0.1% chance. So they will bomb if they need to, which will trigger a regional war of course - which I bet they think they can win (might be right, but what about the consequences to other parties?). Or they will try to derail the current negotiations, which in their opinion won't curb the nuclear development, but will ease sanctions and enable Iran to get stronger. They're in the mindset that Israel's enemies are insane genocidal religious fanatics who can't be trusted under any circumstance. So there's no point to negotiate - you know, the typical justification between enemies.

The irony is that the hardliners in Tel Aviv and Tehran want the same thing - no detente, no talks, and just cold/hot war (it reminds me of the plot of Star Trek 6). The talks were kicked off by the moderate/reformist regime of Rouhani (secret overtures to the Obama admin.), but he is on a short leash and has rivals. The nuclear program is one of their few trump cards, and it's by far their best card. He banked his political survival on this, so the hawks want his efforts to fail so they can assume power again - and fight the infidels their way. That is not a great outcome for anyone, especially the Iranian people.

Apart from the hawks, I'm not really sure what Iran's priorities and goals are. I know they want to get their economy going, and the people want to be part of the global scene (and they want better relations with the US and West). I guess the gov't still wants to keep tight control and develop a nuclear program for their prestige/leverage. But I don't know what their official stance is on foreign policy. Are they truly imperialistic as Israel claims? I think the problem with diagnosing aggression is that it's often rooted in fear/defense. Very few regimes just want to conquer and kill everyone (ISIS may be an exception, but they're not a state with leaders who are held accountable to anyone). We ostensibly invaded Iraq to make the world safer. It's possible that Iran supports Hizbullah and other Shia militias because they fear the Sunni and Western enemies all around them, not because they want to dominate the region. And even if Iran wants to become the most prominent power in the Mideast, the goal could be regime preservation in the face of potential aggression against them, not necessarily continued global expansion. But to Iran's enemies, of course they want to assume the worst motives. I wonder what the Iranians think the US and Israel want.

For the US, obviously we have an interest in the strength and survival of Israel (and the defeat of Islamist groups), but we also want to broker a 2-state solution and have Arab/Persian-Israeli peace. Or at least the absence of war, which would be disruptive to energy markets and global stability. Yes, some factions in the US want war in the Holy Land to bring about Armageddon, but I am not sure how prevalent and influential they are. We don't want Iran to nuke anyone, but we have a little more faith in their restraint than Israel does (esp. with the right incentives and threats in place). So the payoff we get from taking a chance on negotiation is maybe worth it to avoid isolation and escalation to war (which seems inevitable as long as hardliners are in power in Israel and Iran). So where does that leave us?

(#s are guesses for demo purposes)

ISRAEL
Negotiate -3
Don't Negotiate (keep status quo) 5
Fight Now 1

IRAN MODERATES (currently in power)
Negotiate 3
Don't Negotiate (keep status quo) -3
Fight Now -5

US (5+1 nations)
Negotiate 3
Don't Negotiate (keep status quo) -1
Fight Now -5

I am not sure how officially involved Israel is in the talks, but their goal is probably to change the 5+1's payoffs so that Negotiate becomes the least favored option (hence the references to Hitler and whatnot). Bibi actually said we should "make a better deal" (better for Israel of course), but that means he wants us to be more of a hard-ass. Though we know Iran won't just cave (this is their best card to play as I said, and they expect top dollar); they may walk away if our demands are too extreme. That would sink Rouhani and the reformers, and lead to the hardline war-is-likely outcome that some parties want.

Monday, April 7, 2014

The game theory of climate change cooperation



https://dl.dropboxusercontent.com/u/100243807/GameTheoryClimateChangepaper2.docx


FYI if you suffer from insomnia :), here's a recent assignment that I did with some classmates on using game theory principles to motivate cooperation on emissions reduction. It's not my best stuff, but we just want to freaking graduate in a month. :)

Maybe you saw that the UN Intergov't Panel on Climate Change (IPCC) released its updated report, and the situation is graver than the previous worse case scenario. Good times. Part of the problem is that you need to be a meteorologist and statistician to even understand their slimmed down "summary for policymakers". The environmental moment needs to hire the strategic communication consultants that the GOP uses. Hot-button terms like takers, flip-flopper, and death panels seem to resonate better with the public compared to probabilities and scenarios.

And for heaven's sake - tell us how much it's going to COST (5-20% of future global GDP if you can believe - mostly driven by coastal city defense, mega-storm cleanup, and reduced fishing/agriculture), so that it's not just about fluffy polar bears.

https://www.youtube.com/watch?v=IjUb9Y_bvE4

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http://yearsoflivingdangerously.com/
Climate Change series on Showtime.

Saturday, November 30, 2013

Black Friday game theory



Cont'd from previous posts...

But like it was said earlier it is the prisoner's dilemma.  If target is open starting 10pm thanksgiving day with deals and no one else is, then that pool of money is going to disproportionately go to target.  So then JCP says "we'll be open too!" and on and on.  So now everyone is open and everyone is luring people in the only way they know how.
But this is also one of those instances where people grumble about traffic while sitting in traffic.  They ARE traffic.  Complaining about black friday as americans rings hollow when more americans go for the sales than vote. 

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Thx, M. Re: the pris. dilemma... I think the comparison is not quite valid here for a couple reasons. First, some PD's can be defeated through communication and agreements. Maybe through retail trade groups or whatnot, the major players can promise that they will not open before time X. If certain companies violate, then they could be kicked out of the group and flamed by the rest. Also, not all retailers decided to play this game. Notable exceptions are Nordstrom, Costco, Radio Shack, and I think Kohl's. They know that there are just as many potential costs as there are benefits to opening early (as we have already discussed).

“There’s a PR benefit to holding out, just as there’s a PR benefit to opening early,” said Roger Beahm, a marketing professor at Wake Forest University. “We know that there is a consumer backlash to this.”

http://www.huffingtonpost.com/2013/11/13/costco-thanksgiving_n_4262774.html
Second, the PD assumes a "one turn" game with finality, and the players are "all-in" for the decision at hand (open early or not, collaborate or defect). But in reality, holiday shopping is a sequential game with multiple "turns" where players can react to each other's past actions. Holiday shopping is a relatively long war; even if you "lose" B.F. turn 1, you can win later turns, which may in fact help your overall performance. So that may change the payoffs and strategies away from a pure PD.

Some of us discussed that opening earlier for B.F. just shifts purchases ahead in time, and doesn't necessarily earn you more overall profit for the entire season. Forbes had a related comment about that:

A Black Friday spending analysis from [MasterCard] shows a whopping 70% of consumer spending happens at the first two stores a shopper visits.

http://www.forbes.com/sites/clareoconnor/2013/11/28/heres-the-real-reason-stores-are-open-for-black-friday-sales-on-thanksgiving-day/
I guess that makes sense, as shoppers get tired after a few hours of lines, crowds, and cold. Also the article says that consumers allocate 50% of their total holiday budget to B.F. (I assume they got this from exit surveys, which can be problematic, and a lot of customers don't even make a formal budget so it's hard to be sure). So if all that is true, it will incentivize retailers to keep one-upping each other on B.F. But again, thinking about this as a sequential game, during B.F. retailers are fighting for a big slice of the pie (maybe 50% of total holiday spending), but there is still another 50% after. So maybe it is more cost-effective to not "blow one's load" on the B.F. arms race, where competition is fierce, ROI could be lower, and there is more risk. Instead wait as the morons duke it out, and then go on a blitz to eat up all the post-B.F. dollars, after you rivals have depleted their resources. You know, all these lame business-is-war analogies. :)
Lastly, I agree with your point that shoppers bitch about the B.F. issues, yet they are contributing to them at the same time. Maybe many of them have unrealistic expectations that they will just stroll into an empty store at a time that suits them, and quickly get all their wish list items on sale. That is called the internet. :) Assuming that sites don't crash due to heightened traffic.

More on Black Friday



A friend just sent this: http://online.wsj.com/news/articles/SB10001424052702304281004579217863262940166

So folks are stressing and fighting over what is likely phantom discounts anyway.

After working at a discount e-commerce site, I know that some consumers care more about the "% discount", rather than the final price (or even the actual use of the product!). So they fall into the trap. It's probably better to know what max price you will pay for item X, and just pick the nicest one that qualifies. The MSRP may suggest relative quality, but that's about it. My econ prof said that $, not %, counts in the end; a cheap toy may be 80% off, but if that only means $3 more in your pocket, it's really not that impressive. And of course it depends if the full price is reasonable or artificially marked up as the article said. But the majority of consumers are not that econ-finance savvy, and probably don't consider these factors in the heat of the moment.

I just fear that as long as real wages stagnate, the wealth gap widens, and purchasing power wanes (due to higher housing, medical, education, & energy costs), people will find it harder and harder to maintain or increase their consumption (despite all the marketing messages and social pressure to do so). Robert Reich said that these trends have been around since the 1980s, but the US middle class made up for it with home equity and consumer credit (to the benefit of Wall St.). Now that loans are getting harder to come by, and of course curbing consumption is out of the question, the stakes become even higher to secure "deals". That could change the shopping psychology and make B.F. pandemonium and conflict more likely and serious going forward. It's like NFL stadium violence - is it any surprise that it is likely correlated with soaring ticket prices and overall "cost of fandom"? When you squeeze and raise the stakes on people, of course they are going to react badly when they feel like they are not getting their money's worth.

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Happy Thanksgiving dude :)

It's always kind of baffling to me seeing these kind of "is X good for society" emails, because ultimately there is no benevolent overlord responsible for arbitrating this kind of thing. It's just ... game theory, lots of individuals trying to maximize their own whatever (sometimes profit, sometimes happiness, sometimes self-satisfaction).


Black Friday is an interesting concept. My basic mental model is that initially it was just a naturally-big shopping day, and (given retailers' low margins) the first day that retailers showed a profit for the year. Then retailers started competing for shoppers, and because their main method of competition was "sales" ... here we are.

Obviously you know that sales and coupons were the old-school form of price discrimination, before the internet and quants like you figuring out how to get every dime out of the customer ;) But now it's just old-school prisoner's dilemma, with every retailer defecting and offering sales. This year they're especially screwed, because JCP is desperate to sell off the old Ron Johnson-era merch and is undercutting everyone. It's straight-up race to the bottom, where half these guys will be out of business in 3 years and the rest will be lucky to survive 10. 

They're not doing it because it's good for the country or the culture. They're doing it because, like a heroin addict that hasn't gotten a hit in a while, momma needs that holiday shopping boost, and they'll do *whatever* it takes to get it. Some trickery, some desperation, but this is what giant corporations look like when they die. Like those images of a dinosaur trapped in a tar pit, trying to get out, every struggle dragging it deeper into the black ooze.

What we're seeing is the end of retail, and this and the next few Black Fridays are going to be ground zero for that shit. Loot what you can :)

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Thx J, same to you.

Even though B.F. is not a top-down, command economy program, I still think it is valid to evaluate the consequences. If we don't do that, then how can we ever know if a change is needed? Yes, game theory can accurately describe and predict players' actions given a set of conditions, but to me that kind of abstracts the situation as if we were just "rats in a maze". B.F. is about more than transactions. I wanted to consider the human side and social costs, because it's easy to take them for granted when all we see are the cool items, big crowds, and blowout prices in the media. As you said, if these dinosaur retailers are caught in a suicide spiral race-to-the-bottom, then the poor decisions that contributed to that situation will eventually hurt millions of shareholders, employees, and society as a whole (less tax collected, more pressure on social services).

Negative industry trends aside, is B.F. the best method for buyers and sellers to achieve their seasonal goals? As recently as the 1990s, B.F. wasn't even the heaviest US shopping day (that was reserved for the Sat before Xmas, for gift procrastinators LOL). Some limits were still respected. But as you said, companies are locked in a fierce rivalry, and some "innovators" thought to exploit B.F. more. I wish customers would push back and say, "I don't care how big your sale is. The holidays are for spending time with loved ones and being good to one another, not fighting for a spot in line at 3AM just to get an Xbox. It's not right to encourage rabid consumerism and make your employees work these crazy hours either." If we collectively protest and boycott, change will come, like apartheid in SA and cigarettes in the US. Unfortunately there haven't been many big success stories of corporate boycotts recently (they defeated the labor movement, and they know how to diffuse grassroots protest too). But it's American tradition: the Boston Tea Party was a boycott of sorts by colonial merchants getting squeezed by the East India Company. So going back to B.F., unfortunately there won't be boycotts because some customers will likely "cross the picket line," lusting after deals.

I am not that familiar with the JCP case, but didn't Johnson try to make the company more upscale and resist coupons/discounts? Obviously that didn't work and they are now making a big reversal, but JCP is not a leading retailer (it's $12B annual US revenue is 16% the size of Target's). So I don't think they are driving B.F. trends, but they probably will be gone in 3 years as you said (Sears too). However, predictions of retail's demise could be exaggerated (or at least premature). In the Bay we are surrounded with innovation, disruption, and e-commerce, so that could bias our perspective, because US e-commerce is still only 6% of total retail sales in 2013 (and the biggest category is travel, because it is expensive and there isn't really a retail equivalent after the death of the travel agency). Goliath Amazon still has less revenue than Target. Shopping is still a communal, visceral experience that e-commerce and social media haven't fully supplanted yet (some fun, scientific reads on the subject if you're interested: link). Even if Amazon develops cost-effective same-day delivery, many people will still go to the big box or the mall because it offers a value proposition that online doesn't exactly match. Yes brick-and-mortar retail is inefficient with its labor, rent, and overhead, but customers still demand it.  

http://ycharts.com/indicators/ecommerce_sales_as_percent_retail_sales
http://www.statista.com/statistics/191145/travel-e-commerce-sales-in-the-united-states-since-2002/
http://trends.e-strategyblog.com/2013/04/25/american-retail-ecommerce-sales-by-product-category/10687

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I'm sure some of you saw this too, but Black Friday isn't even a good predictor of holiday sales: 

So the whole thing is kind of a waste of time from the perspective of the economy; people are going to spend what they spend over the holiday period, and black friday can only take from that pool, not get consumers to spend more.

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Thx, A. I agree, B.F. just accelerates and concentrates purchases, but then many folks will run out of cash/energy afterward and not shop much more for the rest of the season (like a hangover). If companies want to keep pouring gasoline on the fire and make B.F. more and more of a ludicrous spectacle where the worst of human nature and American "culture" is on display, then I wish gov'ts would pass laws requiring retailers to fit the bill for the extra police, paramedics, and others who have to work overtime, manage the crowds, and respond to shopping-related incidents. Maybe that would change their P&L calculus.