Stock market network reveals investor clustering

(PhysOrg.com) -- The stock price of a company continuously changes, going up or down depending on the collective activity of a large number of investors. Although this process seems fairly straightforward, no one fully understands ...

Rising temperatures threaten a food crisis

A recent study reports that the geographical range of some agricultural crops -- such as corn and beans -- may be greatly reduced if temperatures continue to rise. While some farmers may be able to readjust what they grow, ...

Sentiment analysis for portfolio management

NUS data scientists have developed a deep learning-based text data analytics method to extract sentiment information from analyst reports for investment decisions.

Groupon fails to turn profit as revenue grows

Daily deals site Groupon on Wednesday issued its first earnings report as a publicly traded company, saying it failed to turn a profit despite revenue nearly tripling from a year earlier.

Apple case cracks open e-books, digital goods pricing

A ruling by an American judge that Apple illegally conspired to fix e-book prices could boost competition in the market for all kinds of digital goods, including music and movies, analysts say.

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