Archive for LaTeX

Global Interplays of Values, Wealth, and Geography

I wrote a research paper for my course in Geographic Information Systems (GIS). I had a blast writing it, and there was plenty of Stata and ArcGIS play to be done. I’m posting a download link here, in case anyone is as excited about this kind of stuff as I am.


  • It’s true that distance to the equator is a good predictor of wealth. It predicts 28% of the variance in per-capita GDP! This was a satisfying result — highly significant.
  • We can do similar studies with measures of cultural values. It seems that many values also change similarly with geography.
  • Using four fairly arbitrarily selected values as regressors, about two thirds of the variance in per-capita income can be predicted. This was really surprising to me, and it seems like there’s a lot of similar work to be done here regarding mapping and cultural values.

Weaker Consistency Models

Here are slides I created for my databases class. The theme is weaker consistency models, and they cover the following papers:

  1. Werner Vogels, Eventually Consistent, Communications of the ACM, 2009
  2. J. Baker, et al., Megastore: Providing Scalable, Highly Available Storage For Interactive Services, CIDR, 2011
  3. Pat Helland, Life Beyond Distributed Transactions: An Apostate’s Opinion, CIDR, 2007

Slides in: