The five minutes on my 15 minutes of WSJ fame.

No Gravatar

Coming from a politics-obsessed family, we (family and I) have been fans of predicting election outcomes for as long as I can remember. We are all conservative-libertarians of one hue or another, and I began writing &#8220-wingnut&#8221- screeds in eighth grade for my junior-high newspaper. What with the Florida Bush recount and 9/11, a superpoliticized era had dawned. My first forecast was 2002, and I got all the Senate races right but for one. Uncanny, I thought. Then came 2004, and I nailed that one too. Really uncanny&#8211-but then again, every clock was right twice a day, and this being the high and higher tide of &#8220-my side,&#8221- my predictions didn&#8217-t seem so uncanny in retrospect.

Fast forward to October 2006, and I was a junior in college with a mediocre academic record in finance and Chinese. An election was gearing up. I wanted to put my forecasting ability to the test. I also realized that, by blogging the rationales for my trades, it could become a valuable tool in my quest for a summer internship/job, to represent a side of me that my GPA didn&#8217-t represent at all. Not exactly lacking confidence, I put $2500 where my mouth was, and soon afterwards plowed in another $1000. I shifted in and out of many positions, but the common denominator was (as I said on my own blog some days ago) that I believed the market was underestimating the intercorrelation between congressional races, and especially Senate races all over the country. In other words, I bet very heavily on the Democrats taking both houses.

Three or so weeks into my blog, I was getting scattered, but very positive feedback about my material. People in Tradesports threads began quoting it, and a major Tradesports speculator asked me for some further opinions regarding the direction of the 2008 US presidential nominations markets. (I told him not to do anything other than short Hillary, but to especially not short Barack Obama, until after the election, and I couldn&#8217-t have any &#8220-gut feeling&#8221- until I had gauged what a Dem election victory would mean.) So I knew my material was good, but I was still pretty surprised, not to mention ecstatic, when WSJ reporter Jim Browning contacted me for information about election prediction markets. So I happily gave him everything he asked, and the superb WSJ article was the result. (That&#8217-s the non-$$, Pittsburgh P-G version.) But as our conversations continued into election night, I begain to despair about my positions&#8230-

In Virginia, George Allen had about a 12,000-vote lead with about fifteen counties remaining to vote. I knew they were in the pro-Webb counties (Fairfax, Loudoun, Richmond City&#8230-) but those precincts ranged from barely better than even to 72-28 (Richmond). Webb would have required statistically&#8230-.unlikely turnout and/or margins in order to win. A lot of people on DailyKos and other communities emotionally invested in a Webb victory, processing new updates literally seconds after they came, had given up on Webb. Harry Reid came on TV and his body language screamed, &#8220-I don&#8217-t think the Senate is in play anymore, even though I thought it was a couple of hours ago&#8230-but that was too much to ask, anyway.&#8221- Without Virginia, the calculations for the Democrats&#8217- taking the Senate became very grim, very fast.

Final polls (which I had spent the previous weekend trashing) showed VA breaking for Webb, comporting well with my own intuition. As the returns came in, however, Allen seemed to have an insurmountable lead with about 96% of precints reported. I concluded that Allen would win re-election, barely. Michael Barone&#8217-s forecast to the contrary, I noticed that the remaining precincts to report were healthy-majority Democrat (about 60-40, 65-35), but I didn&#8217-t think that Webb would be able to cut Allen&#8217-s lead in half&#8211-well, maybe half, but not zero it out. (I learned only later that when Virginia says &#8220-precincts reporting,&#8221- it apparently does not include absentee ballots when it says that. Or it reported them before it started tallying up the actual votes from the voting booths on that day. Or something. But a bunch of absentee ballots flowed into Fairfax later that netted about 7k more votes for Webb.)
However, rewinding to that despairing moment, the Democratic machines in Richmond City, Fairfax and Loudoun had waited until all other precincts had reported before reporting. Now, I don&#8217-t know about Virginia, but I know that in Missouri, the urban Democratic machines in STL and KC have a certain notoriety (in some circles, anyway) of waiting until every other precint has reported, and then releasing surprisingly high results (that usually imply incredible voter turnout&#8211-certain STL precincts reporting 97%, 100+% turnout isn&#8217-t unheard of), magically pushing the Democratic candidate over the top by a fraction of a percentage point. (I don&#8217-t want to start a flame war here&#8211-I think American politics is a blood sport, both sides have their different ways of playing dirty, and this was just something I didn&#8217-t factor in.) And six to twelve months after the election, some low level Democrats get a year in jail for voting fraud. It happens like clockwork, except that this time around I don&#8217-t think the MO Dems will need to resort to that. But I digress&#8230-

So I figured VA was lost when it wasn&#8217-t, and I puked up all the SENATE.GOP shorts. At one point, over 50% of my entire principal was gone. Then, after despairing for about ten minutes, I went back to the TS markets intending to try and make back what I could. Then I realized that Webb had magically jumped into a 2200 vote lead in VA with 100% of precincts counted. I had already looked at the counties and their turnout/margin statistics and figured that couldn&#8217-t have happened, but it had. So after losing over a couple grand&#8230-not to mention feeling like a complete idiot for throwing away $8000 by buckling at the last possible second, I hopped back on the SENATE.GOP train and rode it down to zero, and made back that entire original investment, plus about $150 left over.

So a lot of lost hair, Wheat Thins, NoDoz, bad grades and exhaustive political analysis later, I felt pretty vindicated, even though I had managed to squander 90% of the potential compensation. (I did indeed lose hair.) I had staked 1,000 shorts against SENATE.GOP.2006, well against the majority view of the market. As I recall, total volume going into the election was 35k or 40k trades, but because some significant fraction of that was the same positions being flipped back and forth between a stagnant pool of traders before I&#8217-d arrived, it was probably closer to 5% of outstanding positions. If my money hadn&#8217-t buttressed the market-minority&#8217-s view, the price would have been even more inaccurate&#8211-before election day, the price hovered around 70 percent, and without my heavy position on the &#8220-minority&#8221- side, it would have been closer to 80-20 in favor of the GOP holding onto the Senate. Plus, going into the election, I had stuck by my calculations even as the market had continued to erode my investment. Having that kind of confidence and analytical precision vindicated meant much more to me than $8-9000 in potential winnings lost.

&#8211-Alex Forshaw

P.S. On that non-mercenary note, I&#8217-m seeking an internship this summer involving event derivatives trading/research or options trading, either academia- or finance-based. If you&#8217-re interested, please e-mail to: [email protected]

What happens if you did an opinion poll, but instead of asking each individual how they intended to vote, you asked each individual what they thought the outcome of the election would be?

No Gravatar

Felix Salmon (from the RGE Monitor):

The really irrational thing would seem to be why we still place so much faith in opinion polls. Opinion opinion polls would be much more accurate.

Prediction Market Forum:

Global Imbalances – (Start of the Thread = &#8220-DISCUSSION&#8221-) — NewsFutures and RGE Monitor

SCIENTIST DAVE PENNOCK IS LAUGHING ALL THE WAY TO HIS NEW YORK BANK.

No Gravatar

&#8230- Psstt&#8230- TradeSports traders&#8230- Wanna be rich?&#8230- Do like David Pennock: Get a PhD&#8230- with a major in probabilities&#8230-

Although TradeSports’s individual state predictions and overall Senate prediction were entirely consistent, one might argue that traders underestimated the degree of dependence (correlation) among states’ elections. In fact, I made a few bucks selling the “GOP Senate control” contract on TradeSports using exactly that reasoning. The truth is, I probably just got lucky, and it’s nearly impossible to say whether TradeSports underestimated or overestimated much of anything based on a single election. Such is part of the difficulty of evaluating probabilistic forecasts.

Speculating (and hedging?) on US presidential prediction markets would have social utility. Dixit Robin Hanson.

No Gravatar

If Deep Throat is right and the CFTC has indeed already given its stamp of approval to presidential prediction markets, then HedgeStreet and USFE would be well advised to listen to professor Robin Hanson&#8217-s idea with great attention:

Using data from a site like Tradesports.com to forecast who will win an election is just scratching the surface, said Robin Hanson, associate professor of economics at George Mason University in Fairfax, VA, and one of the founders of the field of prediction markets. Although the economic incentive is high for picking a winner, Hanson would like to see prediction markets forecast the consequences of a candidate getting into office. Will unemployment go up or down? Will we have more or less trouble in Iraq? Will we decrease or increase the deficit? &#8220-The social value of telling people who&#8217-s likely to win is questionable. The social value of telling people the consequences is arguably far higher,&#8221- said Hanson.

My Question To Professor Robin Hanson: The prediction market that would be interesting would be the one featuring the elected candidate (the so-called &#8220-President-Elect&#8221-). But the expiry of the other prediction markets, featuring the defeated presidential candidates, would be impossible to judge, since these presidential candidates by definition won&#8217-t take office and have any power on the US government. And if the game is murky, you won&#8217-t find any traders willing to risk his/her shirt on those kinds of US presidential prediction markets.

Addendum: Robin Hanson has posted a comment, and I republish it here for everyone to see&#8230-

Let U = the unemployment rate, D = Democrats win, and R = Republicans win. An exchange rate between “Pays $U if D” and “Pays $1 if D” gives an estimate of E[U|D]. Similarly, an exchange rate between “Pays $U if R” and “Pays $1 if R” gives an estimate of E[U|R]. We can compare E[U|D] and E[U|R] to see which candidate is expected to have a lower unemployment rate. And we know how to pay off all of these assets, no matter what happens.

Robin Hanson would like to see prediction markets forecast the consequences of a candidate getting into office. – REDUX

The TradeSportss NKM scandal vs. the BetFairs 2006-Senate case

No Gravatar

JC Kommer was prompt to comment on my 2006-Senate piece:

Double standard Mr Masse.
Betfair is doing exactly the same thing that Tradesports in the NKM “scandal”, going for the literal reading of the rules as they should.

My Answer To JC Kommer:

I disagree.

NKM Scandal: TradeSports made two grave errors. Number one, they engraved in marble that they would rely ON A SINGLE SOURCE OF INFORMATION (the US DOD) for the expiry of the contract. This is totally crazy. The truth should be established using as many reliable sources as possible or appropriate (including second-hand but reliable sources like the White House, which is fed by the DOD on military issues). What matters is the truth, gathered from multiple sources, not one particular source that could have an irrational or secretive behavior at some specific times. Number two, while establishing this one-single-source-for-expiry contract, TradeSports was not aware of the well known and public fact that the US DOD never issues detailed statements on North Korea matters. Information about North Korea is &#8220-classified&#8221-. Logically, the US DOD did not confirm directly and in a very formal way that North Korea fired missiles. (Note that a case can be made that the US DOD did indeed confirm the North Korea firing of missiles, directly and in an elliptic way, which many observers found it satisfying enough for expiry purpose). So, in my view, as I have described above, TradeSports made two grave errors. They apologized to their traders, but they did not take action to compensate the victims of their two errors. The victims here are the &#8220-yes&#8221- speculators on the NKM prediction market. They were correct in their prediction, but they lost their shirt in the end. Note that the &#8220-yes&#8221- bettors and virtual speculators at BoDog and NewsFutures were justly gratified for their accurate prediction on the NKM topic. Which shows once again that the problems originated from TradeSports, and not from the &#8220-yes&#8221- speculators. TEN CEO John Delaney (managing TradeSports) should have compensated the victims. Instead of that, the first action he took on the Monday when the scandal broke was to retaliate against Chris Masse, who gave airtime to the screwed-up &#8220-yes&#8221- speculators.

2006-Senate Case: There are no &#8220-victims&#8221- here, since BetFair sticks with the ORIGINAL contract &#8212-as CLEARLY written ON DAY ONE on their &#8220-RULES&#8221- tab, and as understood correctly by everybody who can read plain English. NO SURPRISE, NO CONTROVERSY. “Which of these parties will have MORE SEATS in the US Senate following the 2006 US Senate Elections?” is a very different question than &#8220-Which of these parties will CONTROL the US Senate?&#8220-. There is no ambiguity in the first question. In the second question, it&#8217-s understood that you could control the US Senate with your allies (the Independents).

OPEN LETTER TO THE COMMENTERS OF THE MARGINAL REVOLUTION BLOG

No Gravatar

Hello Professor Tyler Cowen and all the commenters,

#1. Professor Lance Fortnow made a specific point: taken one day before Election Day, the TradeSports&#8217-s prediction markets of the individual races for the US Senate were accurate (provided that Virginia and Montana go democratic).

#2. Professor Lance Fortnow DID NOT SAY that the TradeSports&#8217-s prediction market for the control of the US Senate was accurate. Please, don&#8217-t put words in his mouth.

#3. Analysis reports from economists and statisticians are coming, but, please give them time to digest the data&#8230- once the dust has settled.

Thanks for your attention,

Chris Masse

BetFair: Which of these parties will have more seats in the US Senate following the 2006 US Senate Elections?

No Gravatar

Republicans: 49%

Democrats: 53.8%

Ex-BBC News Mike Smithson (of the Political Betting blog) wonders whether BetFair will count the two Independent U.S. Senators (Liberman and Sanders) in the Democratic camp.

Lieberman won re-election as the “Connecticut For Lieberman” party candidate – an independent political party he created after losing the 2006 Democratic primary election to Ned Lamont. He has said he will sit as part of the Democratic Senate caucus in the upcoming 110th Congress.

Sanders won yesterday in Vermont as an independent but will caucus with the Democrats and it is said will be counted as a Democrat for the purposes of committee assignments.

The problem that Betfair will have to resolve is that neither ran as a Democrat although they will be attached to the Democrats in the Upper House.

To add to the complication Nick Palmer, MP, posted this on the previous thread at 1.34pm – “I have it in writing from Betfair that they will count the two independents as Democrats. (I asked them a month or two ago before I put a tenner on.) If you have opposite advice in writing, they should be embarrassed!”.

Addendum: From one commenter&#8230-

The question was “Which of these parties will have more seats in the US Senate following the 2006 US Senate Elections?”

The options were Republicans and Democrats. The result is 49-49 with two independents.

It’s a draw- I can’t see how anyone can see otherwise.

Addendum 2: From Yahoo! News (whose data are provided by the Associated Press)&#8230-

Liberman (CT) and Sanders (VT) are counted as Democrats.

Addendum 3: From the Washington Post frontpage&#8230-

Editor&#8217-s Note: Independent members of Congress typically caucus with the Democrats.

Addendum 4: From the New York Times&#8230-

Full Senate Results &#8212- Republican: 49 &#8212- Democratic: 50 – Includes independents who align with the Democratic caucus. &#8212- [CFM’s NOTE: Virginia is still in play at the time of writing.]

Addendum 5: Mike Smithson&#8230-

So punters who are tempted into this market are risking money on how they think Betfair will settle the market.

Prediction markets, idea futures, event-driven futures, European call options, event derivatives…

No Gravatar

&#8230- and now &#8220-information derivatives&#8220-. (Via George Tziralis) What is remarkable is that you can shorten it as &#8220-ID&#8221- (or &#8220-IDs&#8220-, plural). (Prediction markets are often referred as &#8220-PMs&#8221-.)

My Question To My Readers: Which term(s) do you like most? In my short list, in the blog title, I forgot to mention terms including the word &#8220-stock&#8221-, which Alex Kirtland told us is the most commonly understood by &#8220-people&#8221- (as opposed to prediction market professionals).

My Questions To Bernd Ankenbrand: Would you mind telling us more about GEXID, here, on this blog? And do you know some English-speaking colleagues of yours who would like to be registered at Midas Oracle? And Gutten Tag!&#8230- (That means Bonjour, right?)

Addendum: This is hilarious. They needed to consult an army of German lawyers to make sure that play-money prediction exchanges won&#8217-t be assimilated with gambling operators.

Are you trading with real money?

No. In all gexid markets we trade with gexid euro (play money). Your portfolio at the end can be converted in prices the issuer prices.

Is trading at gexid like gambling?

No. gexid is not a place for gambling. Independent expert opinions by several lawyers in Germany confirm this fact. Therefore there is not need for regulating gexid. Upon request gexid will provide you those expert opinions.

TEN CEO John Delaney finally admits that the new law will cut off TradeSports-InTrades revenues.

No Gravatar

He writes:

Our entire team are very busy with a bunch of things right now
&#8212-
** Offering new and easier ways for members to deposit funds to the exchange.

As for trader &#8220-Todd73NJ&#8221-, he found out that Web-based bookmaker/sportsbook BetCris is testing a workaround for the Internet Gambling Prohibition and Enforcement Act:

1) They mail you the card
2) You fund it via Western Union – either online from a credit card or at a location via credit card or cash
3) You will be charged by Western Union approx $40 per $1,000 transfered
4) They refund the charges you are charged once you deposit to their site and roll over the money.
5) Withdrawing is free to send the money back to your debit card.
6) Normal ATM transaction fees when you take out cash from any ATM. Or you can use it at places that [accept] the certain purchase options they mentioned.

Remember: Neteller (the main financial source of TradeSports-InTrade) is out of the US market.

Partisan impacts on the economy: Evidence from prediction markets and close elections – by Erik Snowberg, Justin Wolfers and Eric Zitzewitz – REDUX

No Gravatar

The breaking news is that Professor Justin Wolfers (of the Wharton business school in Philadelphia) has responded to my unforeseeable attack and to the subsequent Mike Linksvayer&#8217-s comment.

A quick response to Chris:
Let me clarify what I think the key puzzle is: the odds of either Democrats or Republicans are – literally – unchanged since the week before the 2004 election. It seems amazing to me that there has been *no news* that is relevant to the 2008 election.

And I don’t really know which way it should have gone (I’m not yet calling ‘08 for the Dems). For instance, Bush winning in ‘04 provides the Republicans with an incumbency advantage. Countering that, the last two years have provided the Dems with an advantage in the midterms, which you might think could persist to ‘08. And the cast of possible candidates is also starting to take shape, and the absence of Warner, the rise of Barak, and the continuing dominance of both Hillary and McCain are all important factors that we didn’t know about two years ago. All of this is hard to reconcile with the odds remaining unchanged.

I[n] response to Mike’s point: he is exactly correct to emphasize the difficulty in discerning the direction of causation between election outcomes and economic outcomes. But that is precisely the point of my forthcoming QJE paper with Snowberg and Zitzewitz (available at: PDF).

In that paper (which is what I describe in the WSJ), we look at stock market reactions to what are clearly random (or exogenous) shocks to the expectations of Bush’s re-election – the leaked exit polls, and the subsequent vote count. These experiments allow us to draw inferences about how changes in electoral prospects drive economic outcomes.

The Abstract Of That Paper:

Partisan impacts on the economy: Evidence from prediction markets and close elections – by Erik Snowberg, Justin Wolfers and Eric Zitzewitz – (PDF) – 2006-03-XX

Analyses of the effects of election outcomes on the economy have been hampered by the problem that economic outcomes also influence elections. We sidestep these problems by analyzing movements in economic indicators caused by clearly exogenous changes in expectations about the likely winner during Election Day. Analyzing high frequency financial fluctuations following the release of flawed exit poll data on Election Day 2004, and then during the vote count, we find that markets anticipated higher equity prices, interest rates and oil prices and a stronger dollar under a Bush presidency than under Kerry. A similar Republican-Democrat differential was also observed for the 2000 Bush-Gore contest. Prediction market based analyses of all Presidential elections since 1880 also reveal a similar pattern of partisan impacts, suggesting that electing a Republican President raises equity valuations by 2 3 percent, and that since Reagan, Republican Presidents have tended to raise bond yields.