According to the Bureau of Labor Statistics, consumer prices are rising at a 2.1% annual rate. This suggests to us that the current stock market boom will die with a bang, rather than a whimper. The Dow rose 98 points yesterday in anticipation. Fed economists say they don’t think inflation rates are rising. (See more below from Chris.) They think the most recent reading is a fluke. But why does anyone take them seriously? Prakash Loungani, an economist working for the IMF, undertook a study, not so much to find out as to gawk and laugh.