“Nowcasts”

A James Alexander post

As the FOMC increasingly avers that it is data-driven the demand to have better data has led to greater focus on aggregated current data. Whether the FOMC really looks at it, given it is ignoring its own Labour Market Conditions Index, is hard to say.

However, we now have two “nowcasts”. Supplementing the accurate Atlanta Fed the boffins at the NY Fed have decided to introduce their own. It is hard to see exactly why they have done it except maybe out of pique. There seems to be a hint that the Atlanta Fed is a bit too short-termist, judging by the spin to journalists around its launch. GDPNow tries to forecasts the first release of GDP, the one that lacks much of the “third month” data but is still taken very seriously. It is accurate as far as it goes in my mind, taking the trend from the previous quarter and adding up-to-date figures as they are released, and inevitably has a bias towards the first two months of the quarter.

By the time second and third estimates of quarterly GDP have been released using the “second month” revised data and the “third month” new data, GDPNow has moved on to start forecasting the following quarter. If the GDPNow model had kept on running using the additional component data it would probably accurately predict the revisions to GDP, but that would not be the point of it.

The NY Fed seem to want to forecast revised GDP numbers and also go one further and forecast both the unreleased quarter and the current quarter – i.e. they are forecasting right now both 1Q and 2Q 2016. And will continue to do so until the third and final estimate of 1Q is available. By such means they are trying to be a bit more long term in their use of trends. So they were fairly snooty about how their 1Q16 on its first showing was at 1.1% versus Atlanta’s down at 0.1%. their forecast for 2Q16 was a whopping 1.9%.

So it was a bit embarrassing this week that data led to large downgrades to just 0.8% for 1Q16 and to just 1.2% to the mysteriously optimistic 2Q16 – implying some bias towards some sort of longer term trend or mean reversion – disrupted by downbeat actual data. It would be great if they also nowcast the more important, and more reliable “nowcastable”, nominal GDP.

The Atlanta Fed model is actually more sophisticated than many realise. It sometimes seems more volatile because, as is common in the US, it nowcasts annualised QoQ growth.

Why the US focuses on QoQ growth is a bit of a mystery to the rest of the world that tries to focus on YoY growth each quarter. Annualising QoQ means multiplying the growth rate by four so that any minor error in the quarter appears much greater, 4x greater, than it really is.

Also, the Atlanta Fed nowcasts less volatile national output statistics that exclude changes in inventories (ie the final sales GDP figure) and one that excludes both changes in inventories and the impact of net exports (final sales to domestic purchasers). Final sales is nowcast to grow at 0.9% QoQ annualised for 1Q16 due to the exclusion of the big run-down in inventories which reduces the investment element of GDP. Final sales to domestic purchasers is nowcast to grow at 1.6% as it excludes both the inventory run down and the trade deficit.

It will be fun to watch this “battle of the nowcasts” as we know well that despite promises of zero subjectivity the underlying models of the Fed use a Philips Curve approach that sees rapid inflation at current levels of unemployment, despite tight money.

Atlanta Fed Says Q3 Real GDP At 1%–Wait, 0.9%–Oh No, 0.7%

A Benjamin Cole post

It is getting harder and harder to keep a straight face and say the U.S. Federal Reserve should tighten money.

From the Atlanta Fed:

“The GDPNow model forecast for real GDP growth (seasonally adjusted annual rate) in the third quarter of 2015 was 0.7 percent on August 13, down from 0.9 percent on August 6. The previously reported nowcast of 1.0 percent for August 6 was revised down due to a minor adjustment in the method for nowcasting investment in computers and peripherals. Since a week ago, the nowcast for the contribution of inventory investment to third-quarter real GDP growth has declined from -1.8 percentage points to -2.2 percentage points. This decline more than offset an increase in the nowcast of the third-quarter growth rate in real consumer spending from 2.9 percent to 3.1 percent after the release of this morning’s retail sales report from the U.S. Census Bureau.”

So, let’s see, Q1 was dead, and Q3 will be dead, in terms of real GDP growth. And Q2 would have been tossed back into the water in most of the 1990s.

But Janet Yellen and the Fed are still talking about those rate hikes. They sound like a crack-head discussing the next coke fix—there is no other topic in the room.

I have a really bad feeling that what the Fed should be discussing is QE and wiping out IOER. But they can’t. It would not be PC. The Fed is trapped appeasing the utopian monetary dogmas of partisan-eccentrics, and by its own institutional hubris and rigidities.

The Fed cannot say what it should say, which is, “Man, we have been wrong, over and over and over again. The economy is weaker than we forecast, again. Ergo, we are going to gun the presses good and hard for a real long time. Way longer than ever before. Screw our forecasters, they are obviously biased.”

You will never hear a speech like that from the Fed.

Dudes, this could get ugly.