Posts Tagged ‘indicators’

Recession indicators

August 23, 2011 Leave a comment

Everyone is worried about whether a double dip recession is on the way. Google search for “double dip recession” gives millions of results with fresh articles and posts in most major media websites : MSNBC, NY Times, USA today, WSJ and others. Many media are being very pessimistic about it, claiming that the economy has already entered another recession, other caution that it is possible. For these reasons, I decided to review several recession indicators used by economists. These are not the same than those usually mentioned in the media. t. Quick answer to the question whether we are in another recession is : nobody knows and simply cannot say for sure. Why? Read on.

First of all what is a recession? According to NBER, the organization who actually determines whether we are in the recession or not:

A recession is a period between a peak and a trough, and an expansion is a period between a trough and a peak. During a recession, a significant decline in economic activity spreads across the economy and can last from a few months to more than a year. Similarly, during an expansion, economic activity rises substantially, spreads across the economy, and usually lasts for several years.

Keywords in this definition are “significant” and “decline”. In other words, during recession economic activity should be declining, not just stay on the same level. Also, this decline should be significant according to NBER committee. So why cannot we say whether we are heading into a recession or not now?

  • New monthly data calculated by NBER and used to determine whether the economy is in the recession is very noisy.  Numbers often get revised later. For example, some economists who use econometric methods to forecast future values of GDP found that using the last observation when it becomes available makes the prediction for the future periods worse. For this reason NBER usually waits  6 to 21 months. For example, the committee determined that there was the  peak in 2007 11 months after it had occurred.
  • Only if many indicators reach a peak, NBER declares that this was a peak. Same happens with troughs. Looking on one indicator, such as GDP or the unemployment rate, is not enough.

OK, that is good, but what if somebody does not want to wait a year or more for NBER finally announcing that there actually was a recession today? NBER uses the following list of indicators (xls source for this information with some data):

Quaterly Data

  • GDP, NIPA table 1.1.6
  • GDI, NIPA Table 1.7.6 (“I” stands for income)

Source for this data is here

Monthly Data

  • Macro Advisers historical monthly real GDP (xls source)
  • New Stock-Watson index of monthly GDP (source)
  • New Stock-Watson index of monthly GDI (source)
  • Real manufacturing and trade sales (SIC befor ’97, NAIC after ’97. NIPA Detailed Tables 2AU and 2BU)
  • Index of industrial production (source)
  • Real personal income less transfers (NIPA Table 2.6, see source for quarterly data)
  • Aggregate weekly hours index in total private industries (source)
  • Payroll survey employment (source)
  • Household survey employment (source)

Interpretation of all these indicators is straight-forward: if it goes down, the economy is not doing well and if it goes up things are great.  All of the source websites present you with the graphs with adjustable time periods. Comparing todays values with the values during past recessions one can see what kind of contraction/expansion in each variable NBER considers significant and makes corresponding conclusion

So what do we see in this data? Seems like nothing bad is going on for now and there is no reasons to panic. Yay! However,  if one looks at the growth rates of these variables, you can measure how well the economy recovers. The general answer is that the recovery has slowed down. While there is still no reason to panic, because it might be just noise or it will accelerate soon, it is a warning sign .

But what about other indicators often used by media, such as unemployment rate? Aren’t they indicators of economic activity? Yes and no. They have their own peculiarities and have to be used with caution. For example, quoting NBER, unemployment rate

…often rises before the peak of economic activity, when activity is still rising but below its normal trend rate of increase. Thus, the unemployment rate is often a leading indicator of the business-cycle peak. … On the other hand, the unemployment rate often continues to rise after activity has reached its trough. In this respect, the unemployment rate is a lagging indicator.

Other indicators used  include inventories, auto sales, and housing are not currently declining but are still at very low levels relative to the pre-recession period.

And finally, for the dessert, some very interesting high-frequency indicators (because they are not so well-known one has to create graphs him-/herself ) that are available to anyone. The description is available in this post by Rebecca Wilder and the graphs with the recent data is available in this post which I am using here as well. These indicators are

  • Weekly initial unemployment claims  (These series are not used by NBER due to a lot of noise in it. Rebecca Wilder suggests using 4-week moving average of seasonally adjusted initial claims or its growth rate). For now these series look like that:

Weekly unemployment claims

Rebecca’s comments about this graph:

Claims are elevated but ticked up last week. If claims do not fall back in coming weeks, the unemployment rate will rise again. This could indicate the outset of a contracting economy.

Diesel chart

  • And the last Rebecca’s indicator is daily Treasury tax receipts that are slowing but growth remains positive

Treasury receipts

There are other series that are used in media but do not serve as indicators of recession for the US economy. These series include government debt (high levels of government debt do not mean we are in a recession, as long as people believe that it will be repaid. Demand for US bonds is not decreasing!) , inflation (Currently the Fed does not want prices to decrease, not increase! Rising prices for cotton probably mean that the demand for cotton went up. Moreover, inflation would erode government debt which is also a good thing for the US) .

To sum up, it does not seem like we are heading into another recession for now, but there are several signs that the recovery has slowed down.

In any case, in the current situation government has to do something to get the economy from the terrible situation in which we are now. Of course, if aliens do not suddenly attack the United States.