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 ...

Carbon emission scheme 'succeeding despite low prices'

A European Union (EU) programme aimed at reducing carbon dioxide (CO2) emissions has made significant progress despite low prices in carbon markets, according to a study at the Universities of Strathclyde and Pittsburgh.

Spurious switching points in traded stock dynamics

Physicists have rebuffed the existence of power laws governing the dynamics of traded stock volatility, volume and intertrade times at times of stock price extrema. They did this by demonstrating that what appeared as "switching ...

Engineers enlist weather model to optimize offshore wind plan

Politics aside, most energy experts agree that cheap, clean, renewable wind energy holds great potential to help the world satisfy energy needs while reducing harmful greenhouse gases. Wind farms placed offshore could play ...

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.

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, ...

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