Conclusion
The causal effect of a treatment on a single unit at a point in time is the difference between the outcome variable with the treatment and without the treatment. The Fundamental Problem of Causal Inference is that it is impossible to observe the causal effect on a single unit. You either take the aspirin now or you don't. As a consequence, assumptions must be made in order to estimate the missing counterfactuals.
Read more about this topic: Rubin Causal Model
Famous quotes containing the word conclusion:
“A certain kind of rich man afflicted with the symptoms of moral dandyism sooner or later comes to the conclusion that it isn’t enough merely to make money. He feels obliged to hold views, to espouse causes and elect Presidents, to explain to a trembling world how and why the world went wrong. The spectacle is nearly always comic.”
—Lewis H. Lapham (b. 1935)
“of making many books there is no end; and much study is a weariness
of the flesh.
Let us hear the conclusion of the whole matter: Fear God, and keep
his commandments: for this is the whole duty of man.”
—Bible: Hebrew Ecclesiastes (l. XII, 13)
“No one can write a best seller by trying to. He must write with complete sincerity; the clichés that make you laugh, the hackneyed characters, the well-worn situations, the commonplace story that excites your derision, seem neither hackneyed, well worn nor commonplace to him.... The conclusion is obvious: you cannot write anything that will convince unless you are yourself convinced. The best seller sells because he writes with his heart’s blood.”
—W. Somerset Maugham (1874–1966)