It began in 2009, near the mountains of Northern California, the Cradle of Digital Civilization…Google headquarters. Hal Varian, the company’s economic analyst, was struck with an idea: What if Google search queries could be accurately used as an economic indicator? Now, the national banks of Britain, Italy, Spain, Israel and others, along with the US Federal Reserve, have followed up with studies of their own. The results? An intriguing “probably”.

Known as the Google Domestic Trends Index, it can be accessed by anyone simply through, you got it, searching Google. Unlike a lot of indexes which merely act as trailing indicators, the Google Index can act as a current, if not leading, indicator. While it takes most index reports a few weeks or more to gather data and report, Google “makes its updated data available one to three days after searches”.

            Take, for example, the above graph of Google searches related to buying automobiles. The US governments Cash for Clunkers program launched in July ’09, and, accordingly, the searches for buying and selling cars increased dramatically. Not limited only to cars…

            This graph catalogs Google searches relating to unemployment and unemployment benefits. From the time of the ’08 recession on, the increase is visibly clear. With many other examples, there appears to be a clear relation between Google searches and real fluctuations in the US economy.

With research on the dependability and accuracy of the Google Index currently ongoing by many inside and outside the US, its move toward acceptance marks an exciting and modern evolution of economic indicators and the way we can watch the interaction between the “digital” and real world in almost real-time these days; a real-time Census in some ways.

However, there are some who warn that utilizing Google as a true indicator right now might be a risky thing to depend on. Lucrezia Reichlin, of the London Business School, thinks that, while “Google is sexy” and may prove useful as the Internet Age progresses, more time is needed. Its search figures only go back to 2004, and it doesn’t take into account those who don’t use the Internet as often (namely, the “elderly and the poor”).

Progress, though, might be the key word. The Internet is an ever-expanding tool and the number who don’t interact with it shrinks every day. Circling back around to Google, Project Loon aims to bring easy internet access to those who are in more out-of-the-way, remote, or impoverished locations via high altitude Wi-Fi balloons. Greater connectivity will make this small world even smaller, and the reliability and correlation of Internet searches to market trends will only increase. There are already some studies that claim models using the Google data more accurately reflect real market movement than models excluding the data. The future is now. Probably.

Links: Businessweek “Google: Central Banks’ New Economic Indicator” by Aki Ito & Alisa Odenheimer, August 9^th 2012. http://www.businessweek.com/articles/2012-08-09/google-central-banks-new-economic-indicator

Google Domestic Trends; http://www.google.com/finance?q=GOOGLEINDEX_US%3AUNEMPL&ei=eUrcUsjKCYqWiQLmCQ