The News Is Changing

Changing News Media Landscape in South Korea

A recent disclosure of a presidential scandal and the following development of subsequent events have been a major news topic in South Korea. We conducted a data-driven study to examine public reactions to the scandal and their effect on the Korean media landscape. Our analysis is based on 59,224 news articles published by five popular newsrooms that received a total of 47,906,770 Likes on Face...

Breaking News: Changing Attitudes and Practices

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Online news and changing models of journalism

The move to Internet news publishing is the latest in a series of technological shifts which have required journalists not merely to adapt their daily practice but which have also – at least in the view of some – recast their role in society. For over a decade, proponents of the networked society as a new way of life have argued that responsibility for news selection and production will shift f...

NO news is good news.

No News is Good News

It seems plausible that an increase in stock market volatility raises required stock returns, and thus lowers stock prices. We develop a formal model of this volatility feedback effect using a simple model of changing variance (a quadratic generalized autoregressive conditionally heteroskedastic, or QGARCH, model). Our model is asymmetric and helps to explain the negative skewness and excess ku...