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 boldface the theme. Yet the theme itself isn't the story. January: Collective bargaining. The U.S. Supreme Court hears arguments Jan. 11th about public sector unions, mandatory fees, and the economics of the free-rider problem. In the spring, after Scalia's death, it splits 4-4 on the subject. February: Economics of crude oil. Iran takes a stand-offish posture toward the efforts of other oil-producing nations to cut production, wants to get itself back to pre-sanctions levels. March: Smartphones and privacy. The face-off on iPhone encryption and the demands of the FBI go before the U.S. Congress as this month begins. Later in the month, FBI backs away, says it may have found another way. ...