Heckman, James J. - Forschungsinstitut zur Zukunft der Arbeit <Bonn> - 2008
causal knowledge. Some statisticians reject the notion of the provi-
sional nature of causal knowledge and seek an assumption …-free approach to causal inference
(see, e.g., Tukey, 1986). However, human knowledge advances by developing theoretical
models and …,
knowledge does not accumulate across treatment efiect studies, whereas it does accumulate
across studies estimating models …