Skip to main content

Facebook: winners curse or irrational exuberance

It is a year since Facebook launched shares on the Nasdaq. They were launched at $38 per share and now stand at a lowly $26. Anyone who bought a share would have lost 30% of their money.
   At first sight this looks like a classic example of the winners curse. The winers curse captures the idea that the winner of an auction often loses money. IPOs (initial public offerings) are a textbook example of this. Here's the basic logic: If you ask 1000 investors to put a value on Facebook then the average valuation will probably be about right. But, shares are not sold to average investors. They are sold to the investors willing to pay the most. So, what really matters are the valuations of the most optimstic investors. And while the average investor will get the value about right, the most optimistic investors will not. They will overvalue the company and consequently pay too much. This is the winners curse: the investors who 'win the auction' to get Facebook shares would have been better to not bother.
    This is the textbook story, and it seems to fit the Facebook case pretty well. But, here are some things to add in to the mix. 
    One thing to consider is that the price of Facebook did increase in the first few minutes of trading up to $42, with a huge volume of orders. If you got a share at $38 and sold at $42 then that looks like good business. The stupid thing was to buy at $42! Its not clear whether buying the share after launch should be counted as the winners curse or a more general bubble effect that could be classified as irrational exuberance. I would call it the winners curse but others might not.
     Another thing to regonize is that many IPOs run without any winners curse. For example, the chart below compares the performance of Facebook with Google, Linkedin and Manchester United. We can see that investors who bought shares in Google or Linkedin would have done very well. Similar things were expected of Facebook. This still means its relevant to talk of the winners curse - investors in Facebook lost money - but it does suggest that the winners curse is less prevelant in IPOs than some might have us believe.
     A final thing to consider is the possibility of a 'winners bonus'. This is why I've put up the shares of Manchester United. The owners of United had originally planned to sell the shares for $16 to $20. They ultimately had to go for an underwhelming $14 (note that Google and Linkedin were launched at the top of their predicted range). Six months later the shares were up above $18. So, this is seemingly an example where easy money was there for the taking by buying the shares at a very low initial price. Clearly, the more that investors are caught by the winners curse the more cautious we might expect them to be in the future. With Manchester United they were seemingly very cautious. We essentially have the opposite of a winners curse.
    I think there's an interesting lesson in all this with regard to the efficient market hypothesis. According to this hypothesis the share price of a company always reflects the underlying value of the company. In that case an IPO is akin to any other auction because you are buying a good that has value in itself - a share is analogous to a painting, car, house or anything else you can get at auction. In reality, most think that the efficient market hypothesis is pretty dodgy. The share price of a company is more likely to reflect the game going on in the market rather than the fundamental value of the company. The price at any one time may, therefore, be well above or below fundamental value. That makes an IPO different to standard auctions because you are buying a ticket to a game and not something of value in itself. And so, while the winners curse is still relevant, its effects are likely to be overwhelmed by the game playing going on.
          
   

Comments

Popular posts from this blog

Revealed preference, WARP, SARP and GARP

The basic idea behind revealed preference is incredibly simple: we try to infer something useful about a person's preferences by observing the choices they make. The topic, however, confuses many a student and academic alike, particularly when we get on to WARP, SARP and GARP. So, let us see if we can make some sense of it all.           In trying to explain revealed preference I want to draw on a  study  by James Andreoni and John Miller published in Econometrica . They look at people's willingness to share money with another person. Specifically subjects were given questions like:  Q1. Divide 60 tokens: Hold _____ at $1 each and Pass _____ at $1 each.  In this case there were 60 tokens to split and each token was worth $1. So, for example, if they held 40 tokens and passed 20 then they would get $40 and the other person $20. Consider another question: Q2. D...

Measuring risk aversion the Holt and Laury way

Attitudes to risk are a key ingredient in most economic decision making. It is vital, therefore, that we have some understanding of the distribution of risk preferences in the population. And ideally we need a simple way of eliciting risk preferences that can be used in the lab or field. Charles Holt and Susan Laury set out one way of doing in this in their 2002 paper ' Risk aversion and incentive effects '. While plenty of other ways of measuring risk aversion have been devised over the years I think it is safe to say that the Holt and Laury approach is the most commonly used (as the near 4000 citations to their paper testifies).           The basic approach taken by Holt and Laury is to offer an individual 10 choices like those in the table below. For each of the 10 choices the individual has to go for option A or option B. Most people go for option A in choice 1. And everyone should go for option B in choice 10. At some point, therefore, we expect the...

Nash bargaining solution

Following the tragic death of John Nash in May I thought it would be good to explain some of his main contributions to game theory. Where better to start than the Nash bargaining solution. This is surely one of the most beautiful results in game theory and was completely unprecedented. All the more remarkable that Nash came up with the idea at the start of his graduate studies!          The Nash solution is a 'solution' to a two-person bargaining problem . To illustrate, suppose we have Adam and Beth bargaining over how to split some surplus. If they fail to reach agreement they get payoffs €a and €b respectively. The pair (a, b) is called the disagreement point . If they agree then they can achieve any pair of payoffs within some set F of feasible payoff points . I'll give some examples later. For the problem to be interesting we need there to be some point (A, B) in F such that A > a and B > b. In...