A question one would like to think about is whether the small world phenomenon has been changed with the increase usage of the internet. With online communities, the ability to meet people who you have never actually physically met, does this make our world even smaller? Watts and colleagues at Columbia University (New York) conducted […]

We recently spoke in class about information cascades and the impact of having all of your friends move to a new type of device. We used the example of two different instant messengers: A and B. Assuming all of your friends used A, we then evaluated the likelihood of people switching to B. This decision was […]

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According to Professor Paul Turner, “the temptation to cheat appears to be a universal fact of life. In the struggle to survive and reproduce that drives evolution, selfish individuals may be […]