Archive for the Category NGDP futures targeting


Requesting donations for a new Hypermind NGDP prediction market

Several years ago, I raised money for two experimental prediction markets, one at Hypermind and the other at iPredict. The iPredict market ran into problems and was unable to continue. The donated money was returned. Based on what I learned from that experiment, I’m ready to try again.

This time there will be only one market—Hypermind—and only one contract, a one-year growth rate contract, the growth rate of nominal GDP from Q1 2017 to Q1 2018. Because the one-year contract is of more macroeconomic interest, this time around I’d like to focus all our resources on that single contract. It will be called “U.S. Nominal GDP: Trump’s 1st year”, as it will be one way of thinking about the “reflation trade”, that is, the idea that Trump’s policies would boost both RGDP growth and inflation.

Mercatus has a bit over $10,000 to start the ball rolling. This will be sufficient to pay $5,000 to Hypermind to set up the prediction market, with the remaining $5,000 going to a prize fund to incentivize people to participate.

Our goal is to have many, many more participants than last time in order to really boost liquidity in what is an admittedly niche market. I think that a significant prize pool would bring people onboard, and would establish this kind of market as a credible mechanism going forward.

This is where you come in. The more money raised, the bigger the prizes offered to winners, and the more liquidity in the markets.

We need to raise money for this project because Hypermind traders cannot invest any of their own money. That aspect of the prediction market allows it to avoid running afoul of either SEC or anti-gambling regulations. No money is gambled, and no money is invested. Instead, money is donated, and through successful predictions, traders are able to win money. And the more money we can raise, the more and bigger prizes we can offer to participants.

People interested in donating money can send it to the (non-profit) Mercatus Center at the following address:

Mercatus Center at George Mason University
Attn: Dan Butler
3434 Washington Blvd, 4th Floor
Arlington, VA 22201

And of course we’ll accept wire transfers and the like. If people want to give online, they can go to and put “POMP” in the “Gift Instructions” box. Paypal donations can be made by making a gift to the email Bitcoin donations can be made through the button below.

Donations will be invested in this Mercatus project with Hypermind. All contributions are tax-deductible, and you will receive the appropriate receipt for your records. Note that a donation is not required to participate in the Hypermind market, nor does a contribution confer any special privileges. But you would be helping us attract more traders, hopefully leading to a more efficient and dynamic market.

Thank you in advance for your support.

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Attention iPredict donors

A couple of years ago I raised funds for two NGDP prediction markets, Hypermind and iPredict.  The money for Hypermind all came from Valve CEO Gabe Newell. A larger amount of money was raised for iPredict, from about 15 people. Unfortunately, iPredict had to end its experiment after a brief run. For the past year I’ve being making inquiries about a refund, and it’s finally paid off.  Here is the information we received from iPredict:

Here is how the donors can go about requesting a refund.

They should contact Iain Devon, Viclink Senior Account Manager, at Their donation has been held in NZ$ and will be refunded at the current USD/NZD exchange rate, which means they may receive less than their original donation due to change in exchange rates (assuming the donor wants to be refunded in US$). They should provide the details of the initial donation made, including date and value. Refunds will be issued via international bank transfer, so they should also be prepared to provide their bank account information.

I want to thank the people at Wellington Victoria University in Wellington, New Zealand.  Their willingness to return the funds further cements New Zealand’s reputation as one of the least corrupt countries on Earth. If you forgot how much you donated, you might check your old emails to me.  I believe all the donors emailed me and informed me of their intentions.  I also probably have that info, if you need it.

During the period after iPredict failed, I vowed not to try to raise additional funds until the issue of refunds could be resolved.  Now that a resolution seems imminent, it’s time to think about future plans for NGDP prediction markets.  My inclination would be to go back to Hypermind, but with a bigger donation this time. I also feel like the annual market is the most macroeconomically useful, even though it is a long time to wait for a payoff.  (Say a 2018:Q1 over 2017:Q1 contract).  I believe we already have about $10,000 to work with, which is double what the annual market had back in 2015.  More money could be raised. With Trump in office, there might be some interesting policy shocks which could impact the market (although it’s also quite possible that NGDP expectations are not greatly affected—either result would be interesting.)  I’m also open to other markets, if someone has a suggestion.

PS.  Thanks to my colleague Ben Klutsey for working with the iPredict people to arrange this refund.

Binder and Rodrigue on NGDP targeting

Carola Binder and Alex Rodrigue have a very nice new paper out on monetary policy rules, for the Center on Budget and Policy Priorities.  Their paper suggests that either NGDP targeting or total wage targeting is likely to produce the best employment outcomes:

screen-shot-2016-10-06-at-12-44-14-pmI’d quibble a bit with the rankings, for instance I view the Taylor Rule as much superior to the gold standard, at least at positive interest rates.  But I do agree about the advantages of NGDP and wage targeting.  They discuss two types of wage targeting:

Nominal wage targeting can refer to targeting the wage rate (the price of labor) or targeting the quantity of wages paid (total nominal labor compensation, or the average hourly wage times the total number of hours worked). The former can be thought of as a special type of inflation targeting, since wages themselves are a price and wage growth is a type of inflation. Inflation-targeting central banks choose which specific price index to use for their inflation target; nominal wage targeting entails choosing a price index with 100 percent weight on wages. Mankiw and Reis (2003) find that “a central bank that wants to achieve maximum stability of economic activity should use a price index that gives substantial weight to the level of nominal wages.”

I tend to favor either targeting total wage payments, or the expected future level of average hourly wages, and they hold exactly the same view:

Nominal wage targeting has never been attempted, and its implementation could entail several challenges. First, there is no single wage rate. Policymakers would need to choose whether to target mean or median wages or some other measure. Second, nominal wages tend to respond to monetary policy with a lag. It may thus be preferable to target either expected future wages or total nominal labor compensation, which reacts more quickly.

In a slump, total wage payments fall faster than average wages per hour (due to wage stickiness).  So if you are not using a futures market approach, then aggregate wages may give a clearer signal.  However on theoretical grounds average hourly wages are slightly better, and hence to be preferred if the lag problem can be addressed with a futures market for average hourly wages.

Speaking of futures markets, they are skeptical:

Since NGDP responds slowly to monetary policy, Sumner proposes a futures contract approach that would allow monetary policy to respond to expected future NGDP instead of current NGDP.[80] The Fed would set up a futures market in which participants would bet as to whether the future NGDP growth rate would exceed or fall short of the Fed’s target. The Fed would then adjust the monetary base, just as it does today, according to the bets. So, if traders on this NGDP prediction market thought nominal growth would exceed the Fed’s target, the Fed would reduce the base, and vice versa.[81]

This approach is based on the notion that the market is an efficient forecaster, but it could be problematic for a number of reasons.  For instance, the futures market could be subject to manipulation by large speculators,[82] or trading volume could be too low. More broadly, the futures-market approach would drastically limit the Fed’s discretion; the Fed would play a passive role. We think it would be more effective for the Fed to commit to pursuing the NGDP target in the medium run, taking into account the Fed’s own forecasts of future NGDP in its policy decisions.

Not surprisingly, this is one area where I do not agree.  But before explaining why, let me point out that I would strongly support their (Svenssonian) suggestion of targeting the central bank’s own internal NGDP medium term forecast as a second best policy, as long as it was a part of the level targeting system.

Now for my response:

1. The lack of discretion could be viewed as a feature, not a bug.  If you want to preserve some discretion, however, my “guardrails” approach can be employed. Indeed even Bill Woolsey’s index futures convertibility approach allows for discretion, if the central bank sees one big speculator trying to manipulate the market.  (Keep in mind that all trades are with the central bank as the counter-party, so they’d know if someone were trying to manipulate the market.)  And of course manipulation would be almost impossible under the guardrails approach, where the central bank would promise to go short on 5% NGDP contracts, and long on 3% NGDP contracts.  And finally, the same manipulation possibilities apply to a gold standard and/or Bretton Woods regime.  But if you search the literature on these regimes, you will discover almost nothing on “market manipulation”, at least when rates actually are fixed and stable.  (Selling a currency before devaluation doesn’t count, as no one expects the central bank would default on NGDP futures.)  I think it’s a needless worry.

2.  Low trading volume is not a problem; indeed the system does not require any trading at all.  Here’s an analogy.  A gold standard would work fine as long as people were free to convert currency into gold at a fixed price, regardless of whether any such trading actually occurred.  It would simply mean that monetary policy is on target.  And if you still are concerned about trading, the central bank can always create trading by paying a high enough interest rate on margin accounts.

Even if NGDP futures markets are not to be used to set the policy instrument, there is NO EXCUSE for the failure of central banks to set up NGDP prediction markets, and subsidize trading.  This would provide essential high frequency data on NGDP expectations after important monetary policy events, and hence would be invaluable to monetary researchers.  Their failure to do so is gross dereliction of duty, which future generations will look back on in disbelief.  I would have loved to have such a market in the second half of 2008, exposing all their foolish decisions.

HT:  Dilip

Britain needs an NGDP futures market

There’s a lot of discussion about whether Britain will have a recession as a result of Brexit.

There has been a pronounced tone-change among UK economics analysts since the EU Referendum: They are in unanimous agreement that the UK will sink into recession in the second half of this year.

They disagree only on the details and depth.

Call it the Silence of the Bulls: no one — literally, no one — is making a bullish case for the post-Brexit economy.

That is what is so scary about this recession. Usually, analysts and economists like to hedge their bets. Their opinions are spread over a range, with outright disagreements. They talk about “the risk” of something happening; they don’t say “this will happen.”

But right now everyone is saying the same thing. Bank of America Merrill Lynch’s Robert Wood put out a note last week whose title says it all: “It’s not looking good.”

There is one glimmer of hope, the FTSE 250 stock index has fully recovered from the Brexit shock.

Screen Shot 2016-07-31 at 11.18.53 AMBut there are two considerations that cut in the other direction.  First, although the FTSE 250 is supposed to be a “domestic” stock index, unlike the multinational dominated FTSE 100, it still has a substantial exposure to international corporations:

As financial markets approach the relatively quiet trading month of August, investors appear equally equivocal about the country’s prospects, in spite of this week’s surprise rebound in the FTSE 250 stock index — seen as a barometer of domestic UK companies — to pre-referendum levels.

Tempting as it is to read the FTSE 250’s rise as proof that all is well, Garfield Kiff, UK fund manager at M&G, cautions that the advance hides a less positive story.

“Put simply, despite the steady aggregate numbers, the stock market has concluded the UK is heading for a sharp economic slowdown,” he says.

The revival of the FTSE 250 looks like a vote of confidence for UK plc, but within the index there has been a clear divergence between the outperformers, which have been largely overseas earners, and domestic businesses such as housebuilders, retailers, and challenger banks.

In addition, British long term interest rates have fallen sharply since Brexit, thus even if future profits are expected to be lower, those profits are being discounted at a lower interest rate.  So maybe the drop in the pound and lower bond yields are masking weaker growth expectations.

Or maybe all the pundits are wrong.  After all, recessions are really hard to predict, especially those that involve substantial increases in unemployment.  It will be an interesting 6 months, as we await the impact of an unusually large “uncertainty shock.”  I’m on record as being somewhat agnostic on this issue, but to avoid being called a coward I have forecasted a 50 basis point increase in the UK unemployment rate.  You might call that a “mini-recession”, or a “phony recession”. My hunch is that employment will hold up better than RGDP.

I was also surprised when the BoE did not move at its first meeting after the Brexit vote:

Markets were wrongfooted on July 14 when the Monetary Policy Committee voted 8-1 to leave policy unchanged. But the minutes of that meeting said “most members . . . expect monetary policy to be loosened in August”, leading market participants to believe with near certainty that action will come on Thursday.

The BoE’s forecasts and policy decision will have to be made in the absence of hard data on how the vote has affected the economy — most of which will not be published until September. In deciding what action to take, the MPC will weigh up the risk of not doing enough against the risk of depleting its limited firepower before knowing exactly what is required.

Hmm, I wonder what sort of futures market would allow the BoE to avoid waiting until September to respond to a shock that occurred in June?  The FT article also speculates that the BoE will lower its growth forecast to roughly zero:

The Bank of England will this week downgrade its growth forecasts following the vote to leave the EU and explain what action it will take in response.

Governor Mark Carney said before the referendum that a Leave vote could result in a “technical recession” — two quarters in a row of the economy shrinking — and Thursday’s announcements will reveal whether or not policymakers think this is the most likely outcome. Growth forecasts are expected to be cut close to, and perhaps below, zero.

The IMF has a more specific forecast:

The International Monetary Fund has already knocked 0.2 percentage points off its forecast for growth in 2016 since the referendum, and 1 percentage point off for 2017.

That’s both very large and very small, depending on one’s perspective.  It’s very large in the sense that it’s quite rare for a single political action to immediately chop so much off the consensus near-term growth forecast. Even electing Trump would probably have only a trivial impact on growth forecasts. And yet it’s small in the sense that the IMF prediction would probably result in only a very small rise in unemployment.  Indeed it looks more like Japan’s three recent “phony recessions, or the UK phony recession from a few years back (when unemployment did not rise), than it does like the actual recessions of 2008-09, when unemployment rose sharply in Japan and Britain.

There are also hints that the BoE will lean a bit in the NGDP targeting direction:

Most independent forecasters predict the recent depreciation of sterling will push inflation up to about 3 per cent next year — well above the BoE’s 2 per cent target. But the MPC is expected to look through this and focus instead on stabilising medium-term output.

However, I’d caution readers that the higher CPI inflation may come from the weaker pound, and that the GDP deflator may not show a similar increase.  Indeed I still expect NGDP growth to slow substantially.

PS.  Over at Econlog I look at Brexit’s near-term impact from a political angle, which is a much more depressing story.

NGDP futures targeting: Putting the Fear of God into the FOMC

When people come at NGDP futures targeting from a financial markets angle, they get hopelessly confused.  For instance, they worry about a potential lack of trading in NGDP contracts, whereas they should see that as a sign of success.

Today I’d like to suggest a different way of thinking about NGDP futures targeting.  In my view, the Fed can already do a perfectly adequate job of NGDP level targeting, even without tacking on futures markets.  So then why tack on the futures markets?  The answer is simple, they did not do a good job of maintaining NGDP stability during 2008-09, and NGDP futures targeting would force them to do so.

Go back to the 1990-2007 period, when NGDP rose at a pretty steady rate of around 5%/year.  And that was accomplished even without targeting NGDP.  Had they been targeting NGDP instead of inflation in the late 1990s, money would have been slightly tighter, making the resulting boom a bit milder, and (probably) also moderating the already very mild 2001 recession.  They did extremely well, and if they’d actually tried to target NGDP they could have done even better.

What about 2008-09?  It wasn’t just one mistake, it was several.  They focused on inflation, which was high in mid-2008, not NGDP growth that which was slowing sharply.  They focused on (high) past inflation, not TIPS spreads that showed falling inflation expectations late in 2008.  They focused on rescuing banking, not maintaining adequate AD.  (Indeed Bernanke basically admitted this failing (in his memoir) for the specific September 2008 meeting.)  They were squeamish about using unconventional policy instruments aggressively enough (although rates didn’t even hit zero until December 2008).

Obviously if there had been a NGDP futures policy in effect in late 2008, I would have been selling NGDP futures short like crazy.  Lots of other people would have as well, and the Fed would have been exposed to massive losses.

At this point many people get confused, assuming this is how I think things would have actually played out.  Not likely. The Fed would have been terrified of losing a boatload on money on bad NGDP bets.  Imagine explaining to Congress that you screwed up monetary policy so badly that you created a Great Recession, and to top it off you lost zillions of taxpayer funds.  It wouldn’t happen that way.

Instead, the real purpose of NGDP futures markets is to put the Fear of God into the FOMC.  They force it to do what it was already quite capable of doing, but held back due to either ignorance or fear of aggressive use of unconventional instruments.  Ironically, with a 5% NGDP target in 2008, level targeting, we would never had hit the zero bound, and we would never have had to rely on unconventional tools.  But even if we did, the Fed would have done “whatever it takes” to keep NGDP expectations on target.

Because I think the Fear of God would have made the Fed do what it should have done in any case, I think it’s quite possible that there would be little trading of NGDP futures contracts.  But I don’t care, because that “little trading” would be a sign of success.

PS.  Think of this as a variation of Lars Christensen’s famous “Chuck Norris effect”.  In this case Chuck is in the FOMC conference room in 2008, standing right behind Bernanke.  He whispers the following in Ben’s ear:

In your heart, what policy do you think is most likely to provide on-target aggregate demand in 2009?  The weak plan your staff prepared, or the aggressive steps you recommended to the Japanese back in 1999?  Keep in mind that I have a club in my hand, and plan to beat you all senseless if two things happen:

1.  Your plans fails to provide on target NGDP expectations.

2.  The market ends up being right and you end up being wrong.

OK Ben, deep down what do you think the Fed needs to do to provide 5% NGDP growth in 2009?

I want FOMC members to quake in their boots, and adopt a policy stance that roughly balances the short and long positions.  If that “balance” occurs with zero trades, that’s fine with me.  Indeed I hope they are such cowards that they refuse to take a stand, and meekly adjust the base until the long and short positions are balanced.  But if they want to take a bold stand  . . . well let’s just say I hope it works out better than when they overruled market forecasts, and predicted 4 rate increases in 2016!

PPS.  An update to Noah Smith’s recent post provides a great example of how thinking about this market from a finance angle throws people off.  Smith says:

Sumner seems to have thought very little about how markets actually become efficient. Scott, you need price discovery.

That’s not what NGDP futures targeting is all about.  It’s not price discovery, the price is pegged at 5%, it’s monetary instrument setting discovery.  I would recommend Noah look at Bernanke and Woodford’s 1997 JMCB paper, which makes it very clear that for this futures targeting approach to work it must be about forecasting the instrument setting that is appropriate, not about price discovery.  (I wonder if John Cochrane has also “thought really little about how markets become efficient”.)

Here’s an analogy.  The old international gold standard was not about the “discovery” of the proper nominal price of gold; it was about the discovery of the monetary base that would result in equilibrium occurring at the target price of gold.

And please don’t anyone tell me that the gold standard did not provide macro stability–I know that.  But it did stabilize gold prices, and NGDP targeting would stabilize NGDP expectations.  And (unlike stable gold prices) that’s a really good thing.  With stable NGDP expectations we will no longer have events like 2008-09.

If Noah Smith wants to seriously challenge the policy he needs to provide a plausible argument for large and time varying risk premia in the NGDP futures markets.  So far, no one’s been able to do that.  But that’s the sine qua non of any criticism.  Otherwise, I simply don’t care.  Manipulation? Who are the victims?  And did this occur under Bretton Woods?

And if it didn’t work, worst case is I get rich. Now that doesn’t sound so bad, does it?

HT: Foosion