Possible typo on p.1189

[Duane321]

Edition: 2023-04-01, Advanced Topics

Not positive about this one, but I think tau, highlighted in red, should be 0.

Otherwise, our estimator involves knowing the true tau? And it doesn't seem it would be an estimator, since if the tau AIPTW-estimator happen to equal the truth (tau), then the term with the red box would be zero.

[murphyk]

I'll ask the authors.

[vveitch]

Nice catch; the left hand side of this equation should have had a - \tau

[murphyk]

fixed