The reality of course is that increased exports would have marginal impacts on the rest of the world's use of energy. (dotearth.blogs.nytimes.com)
Her nutritional status before and during pregnancy are important for milk content, but generally only of marginal impact since her body will ensure that the breastmilk receives the available vitamins and minerals. (unicef.org)
Nonetheless, if the goal is to assess the impact, at the margin, of a decision to defer or accelerate income, understanding the total marginal impact is crucial. (kitces.com)