Pulse uses real-world examples to illustrate how:
- A Canadian epidemiologist tracking “flu symptoms” searches on Google is able to track flu outbreaks faster than Canadian health authorities. His success inspired Google’s “Flu Trends” tool.
- Tracking Twitter comments about upcoming movies could reliably predict box office success better than any other method.
- The number of “unemployment” Google searches nationwide tracks very closely to Bureau of Labor Statistics unemployment reports, which releases its data monthly after sampling 60,000 households while Google trends data is available weekly—and for free.
- Tracking Twitter comments produces nearly the same results for consumer confidence and political polls as Gallup polls—except that Twitter results are real time and free.
Updates Coming Soon
Is unemployment getting worse or better? Soon, visitors to this site will be able to see “nowcasts” and forecasts of macro economic trends based on the methods described in Pulse.


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