please introduce us a short commercial story and explain why it is considered as commercial fiction.please at least 500 word.
Hmmmmm, I'm going to expand by giving a totally different take on the question. I am guessing you are referring to "commercial fiction" as opposed to "literary fiction." If that is the case, then you want to hear about a story that was written almost entirely for commercial purposes, in other words, to make money. If that is the case, I would like to present Twilight to you. A mass market paperback designed primarily to titillate teens, Twilight mixed passionate love with the horror and mystery of vampires in order to sell its product. The book was so popular that a movie of the same name came out soon after.
I'll admit, I am always happy that teens are reading, no matter what subject matter is getting them to read extensively. However, this is a story with very mediocre stock characters (I often refer to Bella as having a personality of a wet mop), and I highly doubt it will be found in the literature books of two hundred years from now. Thus, the difference between this commercial fiction and literary fiction.
I'm not quite sure what you're looking for, but the first thing that comes to mind would be the Budweiser Clydesdale commecials. The producers of these commercials have developed whole storylines around the clydesdale who wants to be part of the big show (one of the team pulling the Budweiser wagon in parades), but isn't qualified yet. The plot of these commercials includes all the plot elements of a short story including rising action, character development and etc.