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Game Theory: Open Access textbook

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31–40 of 57 posts

Re: Game Theory: Open Access textbook

#31
post #2

I'm looking to learn Game Theory. Anyone with knowledge in this space have good additional recommendations?

The original: Theory of Games and Economic Behavior, published in 1944 by Princeton University Press, by John von Neumann and Oskar Morgenstern the text that created the interdisciplinary research field of game theory, is still worth reading.

Re: Game Theory: Open Access textbook

#33

Earlier quoted context omitted.

Most corporate strategy/competitive strategy problems use game theory on a daily basis. Market entry, retaliation, oligopoly, monopoly, etc. are good examples. Game theory-heavy industries are the ones in a competitive balance. Think Coke/Pepsi, telecom, etc. Another way game theory helps is in building the right mindset: you assume that your opponent is just as rational and smart as you, and will be trying to predic…

Any chance of elaborating? I'm curious if GT is a 'real tool' (compared to, for example, SWOT analysis), or a high-level mindset?

More of a high-level mindset, since GT is more of an academic topic.

A lot of the effects described in GT can be learned by practice and observation of human competitive behavior, but studying it gives you a much better understanding of why certain situations happen, or how competitors will react.

The market entry game (retaliate/accommodate) is usually the best example:

https://books.google.com/books?id=xhAACwAAQBAJ&pg=PA77&lpg=P...

Another example is signaling: when you publicly declare that you will match prices aggressively and will never be undercut, that's not actually a threat to your competitors, but a signal that if they keep prices high, you will as well, avoiding a price war.

Re: Game Theory: Open Access textbook

#34
post #13

Has anyone here applied Game Theory to a real-world productionized problem? I'm curious. There are many hypothetical situations where game theory is said to be useful, but I've never seen an application of it in real life.

When big corps buy small startup just to kill it off because it might eat into their cake or because their competitor might buy them, that's game theory.

Re: Game Theory: Open Access textbook

#35

Earlier quoted context omitted.

From what I understand, Game Theory is used in "mechanism design", or basically the design of auctions for things like the FCC spectrum auctions, or how facebook / google auction off ad slots. Not a mathematician so I don't have any great references, but a couple bits in the press about it: http://blogs.cornell.edu/info2040/2015/10/20/application-of-... https://www.wired.com/2015/09/facebook-doesnt-make-much-mone...

Just to add: A bit more about the type of auction design facebook was using at the time the article was written. https://en.wikipedia.org/wiki/Vickrey%E2%80%93Clarke%E2%80%9...

I don't think people actually use Vickrey auctions in practice (although it's likely to use some of the same ideas). Even though it has some really cool properties (you're theoretically perfectly incentivized to bid your real price), it has some weaknesses in real life "imperfect" auctions (as an example, weak to collaboration from what I remember).

But seriously, auctions in general (ad auctions yes, but also many other "kinds" of marketplaces, like zillow for ex) are a super huge application of algorithmic game theory. I took a course in Algorithmic Game Theory with Eva Tardos, and she was constantly being asked by companies like Facebook for consulting on their auctions. Google also has a whole team of algorithmic game theory type people for their ads too.

Facebook actually has a meeting room named after her.

Re: Game Theory: Open Access textbook

#36

Earlier quoted context omitted.

Most corporate strategy/competitive strategy problems use game theory on a daily basis. Market entry, retaliation, oligopoly, monopoly, etc. are good examples. Game theory-heavy industries are the ones in a competitive balance. Think Coke/Pepsi, telecom, etc. Another way game theory helps is in building the right mindset: you assume that your opponent is just as rational and smart as you, and will be trying to predic…

Any chance of elaborating? I'm curious if GT is a 'real tool' (compared to, for example, SWOT analysis), or a high-level mindset?

The standard in antitrust law when evaluating a merger or acquisition is to write down a game theoretic model of competition, estimate the parameters of the model (consumers' tastes, degree of substitutability between products, etc.), and make projections of prices based on those parameters.

Re: Game Theory: Open Access textbook

#37
post #13

Has anyone here applied Game Theory to a real-world productionized problem? I'm curious. There are many hypothetical situations where game theory is said to be useful, but I've never seen an application of it in real life.

The "novelty" behind "Generative Adversarial Networks" (GANs), a very popular deep learning network, is based on Game Theory. It's a "game" between a Generator and a Discriminator networks where one try to fool the other. The Generator tries to fool the Discriminator by producing output the Discriminator can't distinguish between fake or real.

You can find real-word applications for GANs (specially the Pix2Pix variety) in a lot of domains.

Re: Game Theory: Open Access textbook

#38
post #13

Has anyone here applied Game Theory to a real-world productionized problem? I'm curious. There are many hypothetical situations where game theory is said to be useful, but I've never seen an application of it in real life.

When big corps buy small startup just to kill it off because it might eat into their cake or because their competitor might buy them, that's game theory.

You've described a situation. A situation itself is not a game theory. A situation might lend itself to being modelled using techniques from game theory, but you've not pointed at why.

Someone could equally say the situation you described is 'strategy' or 'design' or 'product management' and it would be equally enlightening.

Re: Game Theory: Open Access textbook

#39

Earlier quoted context omitted.

Any chance of elaborating? I'm curious if GT is a 'real tool' (compared to, for example, SWOT analysis), or a high-level mindset?

The standard in antitrust law when evaluating a merger or acquisition is to write down a game theoretic model of competition, estimate the parameters of the model (consumers' tastes, degree of substitutability between products, etc.), and make projections of prices based on those parameters.

Interesting. Thanks and a fistbump for the username. :-)

Re: Game Theory: Open Access textbook

#40

Earlier quoted context omitted.

Any chance of elaborating? I'm curious if GT is a 'real tool' (compared to, for example, SWOT analysis), or a high-level mindset?

More of a high-level mindset, since GT is more of an academic topic. A lot of the effects described in GT can be learned by practice and observation of human competitive behavior, but studying it gives you a much better understanding of why certain situations happen, or how competitors will react. The market entry game (retaliate/accommodate) is usually the best example: https://books.google.com/books?id=xhAACwAAQBAJ…

The signaling example is quite interesting. Thank you
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