I generally ask myself at this time of year what were the biggest stories of the past twelve months, in business/financial news. Of course, I choose the ones I do largely because they illustrate an important theme, and in the list below I'll spell out and italicize the theme. Yet the theme itself isn't the story. Further, I don't rank them, as in a top ten list. I assign one top story to each of the twelve months. All that said, here is this year's list. January: Continuing Recession. Iconic chemicals-and-photography company Kodak files for bankruptcy. February: Eurozone tensions . Europe manages a restructuring of Greek debt -- private bondholders take a deep haircut. [Speaking more broadly, there has been a change in tone over the course of 2012. The year began with a lot of talk about the breakup of the common currency zone. Greece might have withdrawn and started printing drachmas. For better or worse, there is much less of such talk now.] March...