* Jeff Matthews: Ben Bernanke and the “Costanza Effect”
* Unsafe haven: U.S. tax authorities target cross-border bank deals
* Dear Yahoos: Employee memo says strategic review could take “months”
* Groupon dysfunction: New accounting cuts revenue in half and new COO quits
* Morning Call: U.S. futures are mixed, London rises early, European shares rise on ECB easing hopes and the Nikkei hits 2.5 year low.
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* Semil Shah: Why Facebook wants a web of real identities
* Bruce Booth: Debunking myths about corporate VC in biotech
* John Otis: Violent protests threaten Columbia’s oil boom
* Matthew Creamer: Did Netflix and Facebook forget about their customers?
* Ikea effect: Why we value things we assemble more highly than premades
* Meg Whitman, when asked if HP paid too much for Autonomy: “It is what it is.”