How Rugby Moved the Mood of New Zealand
DOI:
https://doi.org/10.12922/jshp.v4i4.93Keywords:
sentiment, intervention analysis, rugby unionAbstract
A method for quantifying the collective mood of New Zealanders using mainstream online news content and comments is outlined. Mood is quantified using a text mining pipeline built with the Natural Language Toolkit (Bird, 2009) in Python to measure the sentiment of articles and comments. Intervention analysis is applied to identify statistically significant events which cause a permanent shift in the quantified mood. This technique builds on the well-known ARIMA models, and has been successfully applied in finance to understand the reaction of stock markets to external events.
This two-step process shows the impact of the mood of New Zealanders after their national team, the All Blacks, won the 2015 Rugby World Cup. We find that the All Blacks victory over Australia had a statistically significant, positive impact on the overall mood of New Zealanders.
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