Google measures inflation by looking at web data

Once again drawing upon its access to  information, Google suggests it developing an alternative measure of inflation:

Google is using its vast database of web shopping data to construct the ‘Google Price Index’ – a daily measure of inflation that could one day provide an alternative to official statistics.

The work by Google’s chief economist, Hal Varian, highlights how economic data can be gathered far more rapidly using online sources. The official Consumer Price Index data are collected by hand from shops, and only published monthly with a time lag of several weeks…

The GPI shows a “pretty good correlation” with the CPI for goods such as cameras and watches that are often sold on the web, but less so for others, such as car parts, that are infrequently traded online.

This bears watching as Google can access data and then analyze/summarize it at a much quicker speed than the government. But it will be interesting to see how Google gets around the issue of what is being sold online – the story also notes that Google’s index downplays the role of housing.

This could play out in a number of ways. Could this online index be improved so that markets were responding to Google’s data rather than the government’s data? Let’s say the government decides it likes Google’s approach. Does it develop the same or a similar algorithm within the government? Does it contract the task to Google?

Disagreement about unemployment figures between government and Gallup

Gallup suggests that the unemployment figures to be released by the federal government at the end of this week are underestimates. While the government figures are expected to be around 9.6-9.8%, Gallup says the unemployment is really closer to 10.1%.

The main issue seems to be that Gallup is measuring through the end of September while the government figures are based on data that ended in mid-September. And Gallup found that unemployment increased quite a bit in the last few weeks of September.

Debating how fast high-speed rail should be

Some legislators in Illinois are questioning whether plans for 110 mph trains actually are high-speed trains. However, as you might expect, working out the details and the funding is complicated with many involved parties:

Officials at Amtrak, which has minimal expertise in operating high-speed rail, don’t see a problem topping out at only 110 mph. An infusion of billions of dollars in federal and state funding will mean better Amtrak service in the Midwest — just don’t mistake it for true high-speed trains.

The genuine article, service at up to 220 mph, is being planned in California and Florida. It already exists to a lesser degree on Amtrak Acela Express trains that get up to 150 mph on small portions of the route between Boston, New York, Philadelphia and Washington.

While 110 mph would be faster than current trains, there are some who argue that the speed must be dramatically increased from current levels to have the trains compete with airline travel and attract customers.


Assessing the government response to 9/11

The Washington Post has unveiled a two-year investigation into what the US government has built and developed since September 11, 2001 to counter terrorism and other threats. The overall theme of the investigation (stated here by a retired Army Lt. General): “The result, he added, is that it’s impossible to tell whether the country is safer because of all this spending and all these activities.”

So it appears there is a lot of work being done by lots of people – and the payoff of all of this is unknown.

This is a great issue for someone to solve: how to bring together all kinds of related information (brought in by many people) and make it interpretable and useful.