Grade point averages at Ivy League colleges have crept up over the past 50 years, according to this chart from the Economist:
The data comes from a variety of sources, including college newspapers and internal documents. But it's clear that over time, the trend has been on the rise — although Princeton isn't far from where it was in the mid-1980s, and Harvard appears to have settled at around a B-plus. Brown is leading the pack; the average GPA there is now almost an A-minus.
Colleges can stop grade inflation, as Wellesley College learned. But disarming unilaterally brings its own consequences.