From
DShort.com Consumer Metrics Institute Growth Index July 31, 2010 new update
Note from dshort: The 91-day Growth Index continues its downward slide with data now available though July 29th. Note that the Real GDP numbers are updated with the BEA's revised estimates from 2007 through First Quarter 2010. See the explanation
here.
The thumbnail chart shown here is the Consumer Metrics Institute's Daily Growth Index with an overlay of Gross Domestic Product (GDP). This is one of the most interesting data series I follow, and I recommend bookmarking the
Institute's website. Their page of
frequently asked questions is an excellent introduction to the service.
The three charts below focus on the 'Trailing Quarter' Growth Index, which is computed as a 91-day moving average for the year-over-year growth/contraction of the Weighted Composite Index. The index gives a nearly real-time daily snapshot of consumer behavior across a wide variety of consumption categories. The 91-day period is useful for comparison with key quarterly metrics such as GDP. Since the consumer accounts for over two-thirds of the US economy, one would expect that a well-crafted index of consumer behavior would serve as a leading indicator. As the chart suggests, during the five-year history of the index, it has generally lived up to that expectation. Actually, the chart understates the degree to which the Growth Index leads GDP. Why? Because the advance estimates for GDP are released a month after the end of the quarter in question, so the Growth Index lead time has been substantial.