Long in the tooth

His cousin was now of more than middle age. . . . She was lean, and yellow, and long in the tooth.

So as Microsoft began its 30th year last month, investors wondered whether it's a little long in the tooth.

There were four relatively-fast, modern cruisers, the Oleg, Aurora, Zhemchug, and Izumrud... aaand the Dmitrii Donskoi, which was twenty-one years old and getting a bit long in the tooth.

For those who are interested, Deaton (1992) remains the best (and most readable) single introduction to the empirics of the canonical permanent income model, though it's now a bit long in the tooth.