Complements and substitutes
From CreativeBusiness
A substitute is an item that can replace another item, so one can buy a PC from IBM or Dell, it doesn’t really matter - PCs are substitutable. A complement is an item that complements another item, so if you buy an iPod, then there are a range of accessories that act as complements, such as iPod socks or remote controls or armband iPod holders for the keen jogger.
If you are in a band, your main product is music, which you sell in the form of a CD. The complements to your CD are things like gig tickets, tour programs, T-shirts, DVDs. People buy these other products together with your CD, and are very unlikely to buy them if they aren’t also interested in buying your CD.
Generally speaking, demand for a product increases when the prices of its complements decrease.
We could swap things round and say that your products are CDs, gig tickets, tour programs, T-shirt and DVDs. The complement to that is the music itself. (Note that we’re used to thinking the other way round, labelling the music as the product and the merchandise as the complement, because the music comes first and the merch has to come second. But when you view the saleable items as the products and the music as the complement, this all makes much more sense.) Demand for your products increases when the price of its complement - the music - decreases. If the price of your music is zero, i.e. you are giving it away for free online, economic theory has it that the demand for your products increases.
Using this logic, if you are getting a cut of all CDs, tickets, etc. sold, then it is in your interest to get the price of your products' complements as low as possible.
In the music industry the separation between product and complement is more perceived than real - whilst the record company controls the complement - music - the rights required to create products is often licensed out to third parties, such as merchandising specialists, who have to conform to the record company’s terms. Thus it would be in the interests of the third parties, e.g. the merchandising companies, to lower the price of the music to increase demand for their product - the more people can access the music of MyWonderfulBand, the more fans there are, the more demand for T-shirts. In practice, though, that’s impossible as the merchandising companies have no leverage to achieve such a goal.
But if the same people - the band - are in control of both products and complements, they can create an end-to-end business model that sees them giving away the product and earning off its complements. Arguably, people like Ani DiFranco have been doing this for years, encouraging people to make copies of her music and then selling merchandise and touring frequently. For a musician, this is a self-reinforcing feedback loop. The more you tour, the more merchandise you sell, the more you bring your music to the attention of people who may want to buy tickets for your next gig or buy a T-shirt or CD. By taking the risk of commoditising your music, you can potentially drive up the demand for the complements substantially, if you can get over the icky feeling of commoditising the very thing you feel most passionate about.
This ties in nicely with Tim O’Reilly’s view that:
Obscurity is a far greater threat to authors and creative artists than piracy.
So how about the other creative industries? Well, in the publishing industry, the product is the book contents, the complement the book itself, so giving away ebooks should drive demand for paper books. Authors don’t seem to do much in the way of merchandising - perhaps that should change, especially with services like Spreadshirt or Cafepress. Films are rather the same - the moving image is the product, the DVD the complement. Photography - the image is the product, the print or the book the complement…
The problem with all this is substitutes. Remember, a complement is “a product that you usually buy together with another product”. But for many of the products that come out of the creative industries, the physical incarnation is not a complement to the digital version of the creative work, but a substitute, something you buy if the first product you looked as was, say, too expensive.
If the digital creative work is a substitute for the physical instantiation of the work, the whole complement theory falls over. Computers and operating systems are complements of each other because one without the other is sort of pointless - you want the one if you have the other. But with no CD, my MP3 is still listenable; with no DVD, my MPEG is still watchable; with no print, my JPG is still viewable. This is why the RIAA and its ilk have being getting so much in a tizz about the downloading of unauthorised files - they see the digital as directly substitutable for the physical. And if something is substitutable, it can’t be complementary. Can it?
This is where the lines get a little fuzzy. Technically, an MP3 is a perfect substitute for a CD - you can do pretty much everything with an MP3 that you can do with a CD. (Indeed, the chance are you’ll turn your CD into MP3s as soon as you get it). But it's unclear that its substitutability is quite so perfect. As more people experience total music data loss when their MP3 player or computer hard drive dies, its perceived substitutability will actually decline.
As the MP3 player market matures, we will see more people loose data when their devices perish or when they try to swap between silo’d devices that do not play nicely together, e.g. trying to play proprietary format music on a non-compatible device. At that point, substitutability will decline slightly and complementariness will increase slightly, although it will be individual context that will define whether a given MP3/CD is a complement or a substitute.
It is an irony that the industry that has been so worried about substitutability also has some of the best complements to it’s main creative output. Bands aren’t reliant on just CDs for income: gigs and merchandise play a significant part in the successful band’s income, and it’s possible to imagine that percentage could increase as income from CDs decreases. Other creative industries, though, are going to need to find some complements, and quickly. The digitisation of creative works is neither slowing down nor going away; and the commoditisation of those works is both inevitable and uncontrollable, driven as it is by the consumer rather than the rights owners. The only way to deal with the commoditisation of your past cash cow is to sell complements to it.

