Much to the chagrin of some Americans, conventional light bulbs were effectively banned in 2014 leaving only compact florescent lights (CFLs) on store shelves. The ban was encouraged, in part, by the makers of the more expensive CFLs. Which concept is best captured in this story?

The correct  answer would be the "Concentrated benefits & Diffused costs".

Explanation:

Its concentrated companies benefit at such an expense which is very diffuse. Downstream sectors like manufacturing, cars, food, drinks, including electronics, are now facing increased expenses.  Yet the suffering of each particular enterprise is less than the concentrated advantages aluminum and steel manufacturers receive.  

So, in the given story the definition above is better captured.

Chelsea French

PS- i only know this cause i have read the story sooo many times, TRUST me on this one lol