the future orientation index

I’ve recently discovered Google Trends and have been looking for an opportunity to use it. Today I found such opportunity in a paper [1] published last April that computes countries’ “future orientation index” from Google Trends data and correlates it with national per-capita GDP. The authors report correlation for 2010; my experiment with Google Trends […]

using Hadoop to examine county-level industrial diversity

In a previous post, I computed each U.S. county’s industrial diversity from the 2009 County Business Patterns data published by the U.S. Census Bureau. The diversity calculation made use of Shannon’s information entropy equation, which is similarly used by ecologists to calculate species diversity for a region. Here I perform the same calculation using Hadoop, […]

industrial diversity vs percent change in unemployment rate

This analysis may exceed the bounds of my statistics knowledge, but I will deliver it anyway in the name of “process” blogging. I welcome experienced critique of the method! Result A modest positive correlation exists between a county’s industrial diversity and its percent change in unemployment rate over the period 2007-2010. Method Several months ago […]

industry diversity (via Shannon entropy) per US county

Ecologists use Shannon entropy to measure species diversity in a given region. Here I apply the same equation to determine industry diversity in each US county. In the map below, darker color indicates greater industrial diversity: Method Downloaded the 2009 County Business Patterns data from the US Census Bureau and extracted the business establishment counts […]