Unbiased Analysis of Today's Healthcare Issues
If you observe two things occuring, how can you know whether event A causes event B. For instance, consider the case of patients who use a given treatment and finding that they have better health outcomes. While this relationship could be causal in nature, it may not be. For instance, if only people with higher…
Nobel laureate James Heckman has a nice summary of how applied econometricians and policy researchers should define causality. Some of the more interesting points I have excerpted below. On the source of randomness in a sample “One reason why many statistical models are incomplete is that they do not specify the sources of randomness generating…