We've selected five of the best pieces of the past week including Alan Kohler on short selling and the Greenspan legacy, Robert Gottliebsen's exclusive Rio Tinto interview, and Stephen Bartholomeusz on the ticking time-bomb of Centro.

Click on the headlines below to read the editor's picks from the past week.

Greenspan's currency weakens
Alan Kohler
In the two years since he left the Fed, Alan Greenspan's legacy has come under renewed scrutiny. Are the critics being fair or is their criticism misguided? 2 May 2008

Vendor beware
Stephen Bartholomeusz
BG's bid for Origin has reignited debate over what kinds of foreign-owned entities should be allowed to buy strategic assets, including Australia's vast reserves of coal-seam gas. 2 May 2008 

Rio Tinto's reservations revealed
Robert Gottliebsen
Rio Tinto chairman Paul Skinner has finally explained his reservations over the BHP Billiton bid in an exclusive interview with Business Spectator. 30 April 2008 

Centro has time to burn
Stephen Bartholomeusz
It might be counter-intuitive, but the more time the banks give Centro, the less time it might need to start reducing its mountain of debt. 30 April 2008

The naked shorting myth
Alan Kohler
The debate surrounding naked and covered shorts is misleading. There is no such thing as naked short selling – it’s just a matter of whether the stock is borrowed before or after the sale. 29 April 2008 

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