Students who can basically test themselves or try to retrieve material from their memory are going to learn that material in the long run a lot better.
Everyone in relationships turns out in time to harbour a host of very particular requirements: no one, however casual they might appear at first, is ever really 'easy' in the long-term.
Politicians love the idea of Amazon in their city. Once you have Amazon, salaries will go up. Home prices will increase and eventually tax revenues could increase in the long run.
If the doctor goes in and yanks the organs from the healthy patient who came in for a checkup to save five lives, there would be adverse effects in the long run.