The final paragraph is the place to cover what else you would need to know before you are able to decide whether the conclusion is actually valid. This �what else� paragraph obviates the necessity for a formal conclusion. Useful statements are along the lines of:
In order to decide whether, indeed, ABC is actually the case, it would be useful to have access to XYZ.
XYZ might include one or other of: Expert opinion (. business consultant) / statistics / surveys / research data etc depending on the focus of the essay.
It is useful to end the essay on a note of doubt. Suggest that the argument might have a valid point, but that more information would be needed to come to a specific conclusion.
In an attempt to improve highway safety, Prunty County last year lowered its speed limit from 55 to 45 miles per hour on all county highways. But this effort has failed: the number of accidents has not decreased, and, based on reports by the highway patrol, many drivers are exceeding the speed limit. Prunty County should instead undertake the same kind of road improvement project that Butler County completed five years ago: increasing lane widths, resurfacing rough highways, and improving visibility at dangerous intersections. Today, major Butler County roads still have a 55 mph speed limit, yet there were 25 percent fewer reported accidents in Butler County this past year than there were five years ago.
Sometimes, you need to be able to write a good essay in a short amount of time for a timed exam, such as the Advanced Placement exams in high school. At other times, you might find yourself in the uncomfortable situation of having to write an essay fast because you procrastinated or let it sneak up on you. Although an essay written at the last minute will almost never be as good as an essay you spent more time on, putting together a decent essay quickly is still feasible. With a little planning and a lot of hard work, you can write an essay that’s good (or good enough!) in just a short time.