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Information Cascades on Twitter

https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7062665   Social media allows everyone to have an opinion. Anyone is able to make a post or view someone else’s post and form their own opinion. However, information cascades are still able to form. This article studies behavior on twitter, and builds a model that is able to predict the cascade of information on […]

How your friends change your habits – for better or worse

https://www.bbc.com/future/article/20190520-how-your-friends-change-your-habits—for-better-and-worse   The BBC article, “How your friends change your habits – for better and worse,” written by William Park, illustrates human decision-making as ultimately a socially-dependent concept. People absorb stimulus around them that they then take into consideration, whether conscious of it or not, when making decisions ranging from whether to apply sunscreen, to […]

Network Effects and Blockbuster Movies

Network effects explain how who and how many people using a product can have a positive influence on the decision of others to utilize that same service/product. Using the idea of a person’s base desire to use a service along with network effects and the price of said service it is possible to formulate an […]

Why Most Product Launches Fail

This article explores the various reasons why product launches fail and I thought it would be interesting to relate it to the content that we covered in class about popularity cascades and market expectations along with economic and business reasons to explain what is happening. The article initially gives some daunting statistics about how many […]

Diffusion of False Information: A Good Reason to Fact-Check

https://www.washingtonpost.com/news/speaking-of-science/wp/2018/03/08/fake-news-spreads-farther-faster-deeper-than-truth-study-finds/   This article describes the outcomes of a study relating to the spread of information in what they call “cascades” of retweets on Twitter. As defined by the author, a cascade occurs when novel information is tweeted by some individual and it slowly gains popularity, resulting in lots of other users spreading the same […]

“Do I Follow My Friends or the Crowd? Information Cascades in Online Movie Ratings”

https://repository.upenn.edu/cgi/viewcontent.cgi?article=1324&context=marketing_papers This article, titled “Do I Follow My Friends or the Crowd? Information Cascades in Online Movie Ratings”, analyzes the different factors that influence an online movie rating, in particular friends and crowd influence. This analysis states that on average, if initial reviews for a movie are high, later reviews also tend to be high. […]

Exercise Contagion on an Online Social Network

https://www.nature.com/articles/ncomms14753 The article above details a study conducted by Aral and Nicolaides on the contagion effects of exercise on an online social network. By examining data on network ties and daily exercise patterns of 1.1M individuals who ran over 350M kilometers over 5 years, the authors add to our understanding of cascading behavior across social […]

Brands exploiting Long-Tail

Not only have innovations in technology in the past century connected the world through phone calls, email, or forums, new technology as allowed niche and unique goods to be accessible to most people around the world. With the advent of robust search engines, supply and demand for niche markets are now being matched and businesses […]

Networks Blog Post #3

https://www.investopedia.com/articles/investing/052715/guide-understanding-information-cascades.asp In lecture, we analyzed the example of picking marbles from either a majority red bag or a majority blue bag to show how information cascades begin. The first person would pick marble, and depending on that marble, they would guess whether it came from a majority red bag or a majority blue bag. The […]

Network Effects – Power of the Mass

https://www.business2community.com/tech-gadgets/what-are-network-effects-02221322   As I contemplated attending Harvard’s WECode conference, I found myself trying to find out who else was attending and if it was worth the travel. Suddenly, this brought me to the network effects discussed in the article above. The article discusses network effects and how a service’s value increases as the number of […]

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